| S Eleuthera | Bahamas | RSD | More info |
| S Eufemia | Italy | SUF | More info |
| S. Jeronimo | Colombia | MTR | More info |
| S.M. Novella Rail.Svc | Italy | ZMS | More info |
| Saarmelleek/Balaton | Hungary | SOB | More info |
| Sabah | Papua New Guinea | SBV | More info |
| Sabana De Mar | Dominican Republic | SNX | More info |
| Sabana De Torres | Colombia | SNT | More info |
| Sabi Sabi | South Africa | GSS | More info |
| Sabiha Gokcen | Turkey | SAW | More info |
| Sable Island | Canada | YSA | More info |
| Sabzevar | Iran | AFZ | More info |
| Sacheon | Korea (South) | HIN | More info |
| Sachigo Lake | Canada | ZPB | More info |
| Sachs Harbour | Canada | YSY | More info |
| Sachsen Railway Stn. | Germany | ZAU | More info |
| Sacramento International | United States | SMF | More info |
| Sadah | Yemen | SYE | More info |
| Sado Shima | Japan | SDS | More info |
| Saenz Pena | Argentina | SZQ | More info |
| Safford | United States | SAD | More info |
| Safi | Morocco | SFI | More info |
| Safia | Papua New Guinea | SFU | More info |
| Saga | Japan | HSG | More info |
| Sagarai | Papua New Guinea | SGJ | More info |
| Saginaw Bay | United States | SGW | More info |
| Saglek | Canada | YSV | More info |
| Sagwon | United States | SAG | More info |
| Sahabat 16 | Malaysia | SXS | More info |
| Sahand | Iran | ACP | More info |
| Sahiwal | Pakistan | SWN | More info |
| Saibai Island | Australia | SBR | More info |
| Saidor | Papua New Guinea | SDI | More info |
| Saidpur | Bangladesh | SPD | More info |
| Saidu Sharif | Pakistan | SDT | More info |
| Saint Agnant | France | RCO | More info |
| Saint Brieuc-Armor | France | SBK | More info |
| Saint Geoirs | France | GNB | More info |
| Saint John | Canada | YSJ | More info |
| Saint Marys | United States | KSM | More info |
| Saint Paul Island | United States | SNP | More info |
| Sainte Marie | Madagascar | SMS | More info |
| Sainte-Foy Rail Svce. | Canada | XFY | More info |
| Saint-Pierre Pointe-Blanche | St. Pierre And Miquelon | FSP | More info |
| Sais | Morocco | FEZ | More info |
| Sakon Nakhon | Thailand | SNO | More info |
| Sala | Sweden | XYX | More info |
| Salalah | Oman | SLL | More info |
| Salam | Cameroon | MVR | More info |
| Salamo | Papua New Guinea | SAM | More info |
| Salcea | Romania | SCV | More info |
| Sale | Morocco | RBA | More info |
| Sale | Australia | SXE | More info |
| Salekhard | Russian Federation | SLY | More info |
| Salem | India | SXV | More info |
| Salgado Filho | Brazil | POA | More info |
| Salida | United States | SLT | More info |
| Salima | Malawi | LMB | More info |
| Salina | United States | SBO | More info |
| Salina | United States | SLN | More info |
| Salina Cruz | Mexico | SCX | More info |
| Salinas | United States | SNS | More info |
| Salinas | Ecuador | SNC | More info |
| Salluit | Canada | YZG | More info |
| Salmon | United States | SMN | More info |
| Salmon Arm | Canada | YSN | More info |
| Salonibari | India | TEZ | More info |
| Salt Cay | Turks and Caicos Islands | SLX | More info |
| Salt Lake Skypark | United States | BTF | More info |
| Saltillo | Mexico | SLW | More info |
| Salto | Uruguay | STY | More info |
| Salton City | United States | SAS | More info |
| Salvaza | France | CCF | More info |
| Sam Neua | Laos | NEU | More info |
| Samara | Russian Federation | KUF | More info |
| Samarinda | Indonesia | SRI | More info |
| Samarkand | Uzbekistan | SKD | More info |
| Sambailo | Guinea | SBI | More info |
| Sambava | Madagascar | SVB | More info |
| Sambre | India | IXG | More info |
| Sambu | Panama | SAX | More info |
| Samburu | Kenya | UAS | More info |
| Samcheok | Korea (South) | SUK | More info |
| Samedan | Switzerland | SMV | More info |
| Samos | Greece | SMI | More info |
| Sampit | Indonesia | SMQ | More info |
| Sampson County | United States | CTZ | More info |
| Samratulangi | Indonesia | MDC | More info |
| Samsun | Turkey | SSX | More info |
| Samuels Field | United States | BRY | More info |
| San Andres Island | Colombia | ADZ | More info |
| San Andros | Bahamas | SAQ | More info |
| San Antonio | Venezuela | SVZ | More info |
| San Antonio International | United States | SAT | More info |
| San Antonio Oeste | Argentina | OES | More info |
| San Bernado | Colombia | ELB | More info |
| San Blas | Panama | NBL | More info |
| San Carlos | Nicaragua | NCR | More info |
| San Carlos | United States | SQL | More info |
| San Cristobal | Venezuela | SCI | More info |
| San Cristobal Airport | Mexico | SZT | More info |
| San Cristobal Airport | Ecuador | SCY | More info |
| San Domino Island | Italy | TQR | More info |
| San Esteban | Honduras | SET | More info |
| San Felipe | Mexico | SFH | More info |
| San Felipe | Venezuela | SNF | More info |
| San Felipe | Colombia | SSD | More info |
| San Felix | Venezuela | SFX | More info |
| San Fernando | Columbia | SFR | More info |
| San Fernando | Philippines | SFE | More info |
| San Fernando | Spain | FES | More info |
| San Francisco International | United States | SFO | More info |
| San Giovanni Rotondo | Italy | GBN | More info |
| San Ignacio | Mexico | SGM | More info |
| San Ignacio De M | Bolivia | SNM | More info |
| San Ignacio De Velasco | Bolivia | SNG | More info |
| San Javier | Bolivia | SJV | More info |
| San Javier | Spain | MJV | More info |
| San Joaquin | Bolivia | SJB | More info |
| San Jose | Bolivia | SJS | More info |
| San Jose Del Gua | Colombia | SJE | More info |
| San Juan | Argentina | UAQ | More info |
| San Juan | Dominican Republic | SJM | More info |
| San Juan | Peru | SJA | More info |
| San Juan Aposento | Peru | APE | More info |
| San Juan County | United States | MXC | More info |
| San Juan D Ur | Colombia | SJR | More info |
| San Juan Del Cesar | Colombia | SJH | More info |
| San Juan SPB | United States | WSJ | More info |
| San Julian | Argentina | ULA | More info |
| San Julian | Cuba | SNJ | More info |
| San Luis | Argentina | LUQ | More info |
| San Luis | Colombia | IPI | More info |
| San Luis County Regional Airport | United States | SBP | More info |
| San Luis De Pale | Colombia | SQE | More info |
| San Luis Potosi | Mexico | SLP | More info |
| San Luis Rio Colorado | Mexico | UAC | More info |
| San Matias | Bolivia | MQK | More info |
| San Miguel | Panama | NMG | More info |
| San Pablo | Spain | SVQ | More info |
| San Pablo | Spain | SPO | More info |
| San Pedro | Cape Verde | VXE | More info |
| San Pedro | Nicaragua | BZA | More info |
| San Pedro | Cote D'Ivoire (Ivory Coast) | SPY | More info |
| San Pedro | Belize | SPR | More info |
| San Pedro Jagua | Colombia | SJG | More info |
| San Pedro Uraba | Colombia | NPU | More info |
| San Quintin | Mexico | SNQ | More info |
| San Rafael | Argentina | AFA | More info |
| San Rafael H/P | United States | JSG | More info |
| San Ramon | Bolivia | SRD | More info |
| San Salvador De | Venezuela | SVV | More info |
| San Sebastian | Spain | EAS | More info |
| San Vicente | Colombia | SVI | More info |
| San Vito | Costa Rica | TOO | More info |
| Sanana | Indonesia | SQN | More info |
| Sanandaj | Iran | SDG | More info |
| Sancti Spiritus | Cuba | USS | More info |
| Sand Island Field | US Minor Outlying Islands | MDY | More info |
| Sandakan | Malaysia | SDK | More info |
| Sandane | Norway | SDN | More info |
| Sanday | United Kingdom | NDY | More info |
| Sandcreek | Guyana | SDC | More info |
| Sandefjord | Norway | TRF | More info |
| Sandefjord Railway Svc | Norway | ZYS | More info |
| Sanderson Field | United States | SHN | More info |
| Sandnes Rail St. | Norway | XKC | More info |
| Sandringham | Australia | SRM | More info |
| Sandro Pertini (caselle) | Italy | TRN | More info |
| Sandspit | Canada | YZP | More info |
| Sandstone | Australia | NDS | More info |
| Sandviken | Sweden | GVX | More info |
| Sandwip | Bangladesh | SDW | More info |
| Sandy Lake | Canada | ZSJ | More info |
| Sanfebagar | Nepal | FEB | More info |
| Sanford | United States | SFM | More info |
| Sanga Sanga | Philippines | SGS | More info |
| Sanganeer | India | JAI | More info |
| Sangapi | Papua New Guinea | SGK | More info |
| Sanggata | Indonesia | SGQ | More info |
| Sangir | Indonesia | SAE | More info |
| Sangley Point NAS | Philippines | SGL | More info |
| Sangster International | Jamaica | MBJ | More info |
| Sania Ramel | Morocco | TTU | More info |
| Sanikiluaq | Canada | YSK | More info |
| Sanliurfa | Turkey | SFQ | More info |
| Sans Souci | Canada | YSI | More info |
| Sant Egidio | Italy | PEG | More info |
| Santa Ana | Solomon Islands | NNB | More info |
| Santa Ana | Colombia | SQB | More info |
| Santa Barbara Ba | Venezuela | SBB | More info |
| Santa Carolina | Mozambique | NTC | More info |
| Santa Catalina | Colombia | SCA | More info |
| Santa Clara | Cuba | SNU | More info |
| Santa Cruz | Brazil | SNZ | More info |
| Santa Cruz | Argentina | RZA | More info |
| Santa Cruz | Portugal | FLW | More info |
| Santa Cruz | Belize | STU | More info |
| Santa Cruz Do Sul | Brazil | CSU | More info |
| Santa Cruz Is | Solomon Islands | SCZ | More info |
| Santa Cruz Island | United States | SZN | More info |
| Santa Elena | Venezuela | SNV | More info |
| Santa Elena | Guatemala | FRS | More info |
| Santa Fe | United States | SAF | More info |
| Santa Fe | Panama | SFW | More info |
| Santa Fe | Argentina | SFN | More info |
| Santa Fe De Bogota | Colombia | SRS | More info |
| Santa Fe Do Sul | Brazil | SFV | More info |
| Santa Genoveva | Brazil | GYN | More info |
| Santa Isabel | Equatorial Guinea | SSG | More info |
| Santa Lucia | Mexico | NLU | More info |
| Santa Lucia Rail | Italy | XVQ | More info |
| Santa Maria | Peru | SMG | More info |
| Santa Maria | Colombia | SMC | More info |
| Santa Monica | United States | SMO | More info |
| Santa Paula | United States | SZP | More info |
| Santa Rosa | Brazil | SRA | More info |
| Santa Rosa | Argentina | RSA | More info |
| Santa Rosa | Bolivia | SRB | More info |
| Santa Rosa Copan | Honduras | SDH | More info |
| Santa Rosalia | Mexico | SRL | More info |
| Santa Rosalia | Colombia | SSL | More info |
| Santa Teresita | Argentina | SST | More info |
| Santa Ynez | United States | SQA | More info |
| Santaguida | Colombia | MZL | More info |
| Santana Ramos | Colombia | SRO | More info |
| Santander | Spain | SDR | More info |
| Santiago | Panama | SYP | More info |
| Santiago De Compostela | Spain | SCQ | More info |
| Santiago Del Estero | Argentina | SDE | More info |
| Santo Antao | Cape Verde | NTO | More info |
| Santos | Brazil | SSZ | More info |
| Santos Dumont | Brazil | PHB | More info |
| Santos Dumont | Brazil | SDU | More info |
| Sanya | China | SYX | More info |
| Sao Felix Do Araguaia | Brazil | SXO | More info |
| Sao Felix Do Xingu | Brazil | SXX | More info |
| Sao Filipe | Cape Verde | SFL | More info |
| Sao Jorge Island | Portugal | SJZ | More info |
| Sao Jose Do Rio Preto | Brazil | SJP | More info |
| Sao Jose Dos Campos | Brazil | SJK | More info |
| Sao Lourenco | Brazil | SSO | More info |
| Sao Lourenco Do Sul | Brazil | SQY | More info |
| Sao Mateus | Brazil | SBJ | More info |
| Sao Miguel Araguaia | Brazil | SQM | More info |
| Sao Miguel Do Oeste | Brazil | SQX | More info |
| Sao Tome Is | Sao Tome and Principe | TMS | More info |
| Sapmanga | Papua New Guinea | SMH | More info |
| Saposoa | Peru | SQU | More info |
| Saqani | Fiji | AQS | More info |
| Sara | Vanuatu | SSR | More info |
| Sarakhs | Iran | CKT | More info |
| Saransk | Russian Federation | SKX | More info |
| Sarasota-Bradenton International Airport | United States | SRQ | More info |
| Saratov | Russian Federation | RTW | More info |
| Saravane | Laos | VNA | More info |
| Sardeh Band | Afghanistan | SBF | More info |
| Sargodha Apt | Pakistan | SGI | More info |
| Sarh | Chad | SRH | More info |
| Sarichef | United States | WSF | More info |
| Sarmi | Indonesia | ZRM | More info |
| Sarnia | Canada | YZR | More info |
| Sarpsborg Rail St. | Norway | XKQ | More info |
| Sartaneja | Belize | SJX | More info |
| Sasereme | Papua New Guinea | TDS | More info |
| Sassandra | Cote D'Ivoire (Ivory Coast) | ZSS | More info |
| Sasstown | Liberia | SAZ | More info |
| Satna | India | TNI | More info |
| Satolas | France | LYS | More info |
| Satu Mare | Romania | SUJ | More info |
| Satwag | Papua New Guinea | SWG | More info |
| Satwari | India | IXJ | More info |
| Saudarkrokur | Iceland | SAK | More info |
| Saufley NAS | United States | NUN | More info |
| Saul | French Guiana | XAU | More info |
| Sault Ste Marie | Canada | YAM | More info |
| Saumlaki | Indonesia | SXK | More info |
| Sauren | Papua New Guinea | SXW | More info |
| Saurimo | Angola | VHC | More info |
| Savannah/Hilton Head | United States | SAV | More info |
| Savannakhet | Laos | ZVK | More info |
| Save | Benin | SVF | More info |
| Savo | Solomon Islands | SVY | More info |
| Savonlinna | Finland | SVL | More info |
| Savoonga | United States | SVA | More info |
| Savusavu | Fiji | SVU | More info |
| Savuti | Botswana | SVT | More info |
| Sawan | Pakistan | RZS | More info |
| Sawu | Indonesia | SAU | More info |
| Sawyer International | United States | MQT | More info |
| Sayaboury | Laos | ZBY | More info |
| Scatsta | United Kingdom | SCS | More info |
| Schaferhaus | Germany | FLF | More info |
| Schefferville | Canada | YKL | More info |
| Schenectady Rail | United States | ZTD | More info |
| Schleswig-Jagel | Germany | WBG | More info |
| Schloredt | United States | SUC | More info |
| Scholes Field | United States | GLS | More info |
| Schoolcraft County | United States | ISQ | More info |
| Schwechat International | Austria | VIE | More info |
| Scone | Australia | NSO | More info |
| ScotRail | United Kingdom | ZXE | More info |
| ScotRail | United Kingdom | ZDU | More info |
| ScotRail | United Kingdom | ZXP | More info |
| ScotRail | United Kingdom | ZIV | More info |
| ScotRail | United Kingdom | ZGG | More info |
| Scotts Bluff County | United States | BFF | More info |
| Scottsdale Municipal | United States | SCF | More info |
| Sculthorp RAF | United Kingdom | FKH | More info |
| Scusciuban | Somalia | CMS | More info |
| Sde Dov | Israel | SDV | More info |
| Sea Port | United States | BVD | More info |
| Seal Bay | United States | SYB | More info |
| Seal Cove | Canada | ZSW | More info |
| Seaplane Base | Bahamas | WZY | More info |
| Seaplane Base | Canada | YTP | More info |
| Searcy | United States | SRC | More info |
| Searcy Fld | United States | SWO | More info |
| Searle Field | United States | OGA | More info |
| Seattle/tacoma International | United States | SEA | More info |
| Sebba | Burkina Faso | XSE | More info |
| Sebha | Libya | SEB | More info |
| Sechelt | Canada | YHS | More info |
| Secunda | South Africa | ZEC | More info |
| Sedalia | United States | DMO | More info |
| Sedona | United States | SDX | More info |
| Seeb | Oman | MCT | More info |
| Sege | Solomon Islands | EGM | More info |
| Segou | Mali | SZU | More info |
| Segrate | Italy | SWK | More info |
| Seguela | Cote D'Ivoire (Ivory Coast) | SEO | More info |
| Sehonghong | Lesotho | SHK | More info |
| Sehulea | Papua New Guinea | SXH | More info |
| Sehwen Sharif | Pakistan | SYW | More info |
| Seiyun | Yemen | GXF | More info |
| Sekakes | Lesotho | SKQ | More info |
| Selaparang | Indonesia | AMI | More info |
| Selawik | United States | WLK | More info |
| Selbang | Papua New Guinea | SBC | More info |
| Seldovia | United States | SOV | More info |
| Selebi-Phikwe | Botswana | PKW | More info |
| Seletar | Singapore | XSP | More info |
| Selfield | United States | SES | More info |
| Selfridge ANGB | United States | MTC | More info |
| Selfs | United States | MMS | More info |
| Selibaby | Mauritania | SEY | More info |
| Sematan | Malaysia | BSE | More info |
| Sembach | Germany | SEX | More info |
| Semera Airport | Ethiopia | SZE | More info |
| Semipalatinsk | Kazakhstan | PLX | More info |
| Semongkong | Lesotho | SOK | More info |
| Semporna | Malaysia | SMM | More info |
| Sena Madureira | Brazil | ZMD | More info |
| Senanga | Zambia | SXG | More info |
| Senator Clark | United States | GUP | More info |
| Sendai | Japan | SDJ | More info |
| Senggeh | Indonesia | SEH | More info |
| Senggo | Indonesia | ZEG | More info |
| Senhor Do Bonfim | Brazil | SEI | More info |
| Senipah | Indonesia | SZH | More info |
| Seno | Laos | SND | More info |
| Sentani | Indonesia | DJJ | More info |
| Seogwipo Heliport | Korea (South) | JSP | More info |
| Seolak | Korea (South) | SHO | More info |
| Seoul (Incheon) | South Korea | ICN | More info |
| Sepe Tiaraju | Brazil | GEL | More info |
| Sepik Plains | Papua New Guinea | SPV | More info |
| Sepingan | Indonesia | BPN | More info |
| Sept-Iles | Canada | YZV | More info |
| Sepulot | Malaysia | SPE | More info |
| Sequim Valley Arpt | United States | SQV | More info |
| Seronera | Tanzania | SEU | More info |
| Serra Norte | Brazil | RRN | More info |
| Serra Pelada | Brazil | RSG | More info |
| Serre Chevalier | France | SEC | More info |
| Sert | Libya | SRX | More info |
| Serui | Indonesia | ZRI | More info |
| Servel | France | LAI | More info |
| Sesheke | Zambia | SJQ | More info |
| Seshutes | Lesotho | SHZ | More info |
| Sesriem | Namibia | SZM | More info |
| Setif | Algeria | QSF | More info |
| Sette Cama | Gabon | ZKM | More info |
| Seunagan | Indonesia | MEQ | More info |
| Severodoneck | Ukraine | SEV | More info |
| Seward | United States | SWD | More info |
| Seychelles International Airport | Seychelles | SEZ | More info |
| Seydisfjordur | Iceland | SEJ | More info |
| Seymour Johnson AFB | United States | GSB | More info |
| Sfax Thyna | Tunisia | SFA | More info |
| Shageluk | United States | SHX | More info |
| Shahre-Kord | Iran | CQD | More info |
| Shakawe | Botswana | SWX | More info |
| Shakiso | Ethiopia | SKR | More info |
| Shaktoolik | United States | SKK | More info |
| Shamattawa | Canada | ZTM | More info |
| Shamshernagar | Bangladesh | ZHM | More info |
| Shanghai | China | HFE | More info |
| Shangri-la | United States | NRI | More info |
| Shang-Yi | Taiwan | KNH | More info |
| Shanhaiguan | China | SHF | More info |
| Shannon | Ireland | SNN | More info |
| Shanshan | China | SXJ | More info |
| Shantou | China | SWA | More info |
| Shanzhou | China | SZO | More info |
| Shaoguan | China | HSC | More info |
| Sharjah | United Arab Emirates | SHJ | More info |
| Shark Bay | Australia | MJK | More info |
| Shark Elowainat | Egypt | GSQ | More info |
| Sharpe AAF | United States | LRO | More info |
| Sharpe Field | United States | TGE | More info |
| Sharurah | Saudi Arabia | SHW | More info |
| Shashi | China | SHS | More info |
| Shaw AFB | United States | SSC | More info |
| Shaw River | Australia | SWB | More info |
| Shay Gap | Australia | SGP | More info |
| She Kou Ferry | China | ZCU | More info |
| Shearwater | Canada | YSX | More info |
| Shearwater | Canada | YAW | More info |
| Sheep Mountain | United States | SMU | More info |
| Sheffield | United States | MSL | More info |
| Sheffield City Airport | United Kingdom | SZD | More info |
| Sheghnan | Afghanistan | SGA | More info |
| Shehdi | Ethiopia | SQJ | More info |
| Shek Mum | Hong Kong | QDM | More info |
| Shekou Port | China | ZYK | More info |
| Shelby | United States | SBX | More info |
| Sheldon SPB | United States | SXP | More info |
| Shemya AFB | United States | SYA | More info |
| Shenandoah Valley | United States | SHD | More info |
| Shenyang | China | SHE | More info |
| Shenzhen | China | SZX | More info |
| Sheppard AFB | United States | SPS | More info |
| Shepparton | Australia | SHT | More info |
| Sherbrooke | Canada | YSC | More info |
| Sheremetyevo | Russian Federation | SVO | More info |
| Sheridan | United States | SHR | More info |
| Sherman | United States | CSM | More info |
| Sherman AAF | United States | FLV | More info |
| Sherman Oaks H/P | United States | JSN | More info |
| Sherwood | United States | PWD | More info |
| Shikarpur | Pakistan | SWV | More info |
| Shillavo | Ethiopia | HIL | More info |
| Shillong | India | SHL | More info |
| Shilo | Canada | YLO | More info |
| Shimkent | Kazakhstan | CIT | More info |
| Shimojishima | Japan | SHI | More info |
| Shinyanga | Tanzania | SHY | More info |
| Shirahama | Japan | SHM | More info |
| Shiraz | Iran | SYZ | More info |
| Shiringayoc | Peru | SYC | More info |
| Shishmaref | United States | SHH | More info |
| Shively Field | United States | SAA | More info |
| Shoal Cove | United States | HCB | More info |
| Sholapur | India | SSE | More info |
| Shonai | Japan | SYO | More info |
| Shoreham | United Kingdom | ESH | More info |
| Show Low | United States | SOW | More info |
| Shunde Ferry | China | ZAS | More info |
| Shungnak | United States | SHG | More info |
| Shute Harbour H/P | Australia | JHQ | More info |
| Sialkot International | Pakistan | SKT | More info |
| Sialum | Papua New Guinea | SXA | More info |
| Siasi | Philippines | SSV | More info |
| Siassi | Papua New Guinea | SSS | More info |
| Siauliai | Lithuania | SQQ | More info |
| Sibi | Pakistan | SBQ | More info |
| Sibisa | Indonesia | SIW | More info |
| Sibiti | Congo | SIB | More info |
| Sibiu | Romania | SBZ | More info |
| Sibu | Malaysia | SBW | More info |
| Sicogon Island | Philippines | ICO | More info |
| Sidi Barani | Egypt | SQK | More info |
| Sidi Belabbes | Algeria | BFW | More info |
| Sidi Ifni | Morocco | SII | More info |
| Sidney | United States | SXY | More info |
| Sidney | United States | SNY | More info |
| Siegerland Airport | Germany | SGE | More info |
| Siem Reap | Cambodia | REP | More info |
| Siena | Italy | SAY | More info |
| Sierra Grande | Argentina | SGV | More info |
| Sierra Leone | Sierra Leone | SRK | More info |
| Sierra Maestra | Cuba | MZO | More info |
| Sigiriya Slaf Base | Sri Lanka | GIU | More info |
| Siglufjordur | Iceland | SIJ | More info |
| Sigonella NAF | Italy | NSY | More info |
| Siguanea | Cuba | SZJ | More info |
| Siguiri | Guinea | GII | More info |
| Sihanoukville | Cambodia | KOS | More info |
| Siirt | Turkey | SXZ | More info |
| Sikasso | Mali | KSS | More info |
| Sikorsky Heliport | United States | JSD | More info |
| Sila | Papua New Guinea | SIL | More info |
| Silgadi Doti | Nepal | SIH | More info |
| Silistra | Bulgaria | SLS | More info |
| Silur | Papua New Guinea | SWR | More info |
| Silva Bay | Canada | SYF | More info |
| Silver Creek | Belize | SVK | More info |
| Silver Plains | Australia | SSP | More info |
| Silvio Pettirossi | Paraguay | ASU | More info |
| Sim | Papua New Guinea | SMJ | More info |
| Simanggang | Malaysia | SGG | More info |
| Simao | China | SYM | More info |
| Simara | Nepal | SIF | More info |
| Simbai | Papua New Guinea | SIM | More info |
| Simberi | Papua New Guinea | NIS | More info |
| Simenti | Senegal | SMY | More info |
| Simferopol | Ukraine | SIP | More info |
| Simikot | Nepal | IMK | More info |
| Simla | India | SLV | More info |
| Simmons AAF | United States | FBG | More info |
| Simmons Nott | United States | EWN | More info |
| Simon Bolivar | Ecuador | GYE | More info |
| Simon Bolivar | Colombia | SMR | More info |
| Simpang Tiga | Indonesia | PKU | More info |
| Sinak | Indonesia | NKD | More info |
| Sindal | Denmark | CNL | More info |
| Sines | Portugal | SIE | More info |
| Singaua | Papua New Guinea | SGB | More info |
| Singerbhil | India | IXA | More info |
| Singleton | Australia | SIX | More info |
| Sinop | Brazil | OPS | More info |
| Sinop | Turkey | SQD | More info |
| Sinop Airport | Turkey | SIC | More info |
| Sintang | Indonesia | SQG | More info |
| Siocon | Philippines | XSO | More info |
| Sion | Switzerland | SIR | More info |
| Sioux Gateway | United States | SUX | More info |
| Sioux Lookout | Canada | YXL | More info |
| Sipitang | Malaysia | SPT | More info |
| Sipora | Indonesia | RKO | More info |
| Sir Seewoosagur Ramgoolam Int | Mauritius | MRU | More info |
| Sir Seretse Khama Int | Botswana | GBE | More info |
| Sirajganj | Bangladesh | SAJ | More info |
| Sirjan | Iran | SYJ | More info |
| Sirri Island | Iran | SXI | More info |
| Sishen | South Africa | SIS | More info |
| Sisimiut | Greenland | JHS | More info |
| Siskiyou County | United States | SIY | More info |
| Sissano | Papua New Guinea | SIZ | More info |
| Sitia | Greece | JSH | More info |
| Sitiawan | Malaysia | SWY | More info |
| Sitka | United States | SIT | More info |
| Sitkinak Cgs | United States | SKJ | More info |
| Siuna | Nicaragua | SIU | More info |
| Sivas | Turkey | VAS | More info |
| Siwa | Egypt | SEW | More info |
| Siwea | Papua New Guinea | SWE | More info |
| Sjamsudin Noor | Indonesia | BDJ | More info |
| Skagen | Norway | SKN | More info |
| Skagit Regional | United States | MVW | More info |
| Skardu | Pakistan | KDU | More info |
| Skavsta | Sweden | NYO | More info |
| Skeldon | Guyana | SKM | More info |
| Skelleftea | Sweden | SFT | More info |
| Skiathos | Greece | JSI | More info |
| Skien | Norway | SKE | More info |
| Skikda | Algeria | SKI | More info |
| Skiros | Greece | SKU | More info |
| Skive Airport | Denmark | SQW | More info |
| Skoppum Railway | Norway | XUR | More info |
| Skovde | Sweden | KVB | More info |
| Skukuza | South Africa | SZK | More info |
| Sky Harbor | United States | OBK | More info |
| Sky Harbor Intl | United States | PHX | More info |
| Sky Portal | United States | MTP | More info |
| Skypark | United States | SRU | More info |
| Slate Island | Canada | YSS | More info |
| Slave Lake | Canada | YZH | More info |
| Sleetmute | United States | SLQ | More info |
| Sliac | Slovakia | SLD | More info |
| Sloulin Field Intl | United States | ISN | More info |
| Smara | Morocco | SMW | More info |
| Smart | United States | MAC | More info |
| Smith Cove | United States | SCJ | More info |
| Smith Falls | Canada | YSH | More info |
| Smith Field | United States | SMD | More info |
| Smith Field | United States | SLG | More info |
| Smith Point | Australia | SHU | More info |
| Smithers | Canada | YYD | More info |
| Smith-Reynolds | United States | INT | More info |
| Smithton | Australia | SIO | More info |
| Smolensk | Russian Federation | LNX | More info |
| Smyrna | United States | MQY | More info |
| Snake Bay | Australia | SNB | More info |
| Snake River | Canada | YXF | More info |
| Snare Lake | Canada | YFJ | More info |
| Snartemo Railway | Norway | XUS | More info |
| SNCB Rail Network | Belgium | ZYB | More info |
| Snilow | Ukraine | LWO | More info |
| Snohomish County | United States | PAE | More info |
| Soalala | Madagascar | DWB | More info |
| Soc Trang | Viet Nam | SOA | More info |
| Socorro | United States | ONM | More info |
| Socotra | Yemen | SCT | More info |
| Sodankyla | Finland | SOT | More info |
| Soddu | Ethiopia | SXU | More info |
| Soderhamn | Sweden | SOO | More info |
| Sodertalje Heliport | Sweden | JSO | More info |
| Sodertalje S Railway | Sweden | XEZ | More info |
| Soekarno-Hatta International | Indonesia | CGK | More info |
| Soekarno-Hatta Intl | Indonesia | JKT | More info |
| Soellingen | Germany | FKB | More info |
| Soesterberg | Netherlands | UTC | More info |
| Sofia | Bulgaria | SOF | More info |
| Sokoto | Nigeria | SKO | More info |
| Sola | Vanuatu | SLH | More info |
| Sola | Norway | SVG | More info |
| Solano | Colombia | SQF | More info |
| Soldotna | United States | SXQ | More info |
| Solenzara | France | SOZ | More info |
| Solita | Colombia | SOH | More info |
| Solomon | United States | SOL | More info |
| Solovky | Russia | CSH | More info |
| Solvesborg | Sweden | XYU | More info |
| Solwezi | Zambia | SLI | More info |
| Someseni International Airport | Romania | CLJ | More info |
| Sonari | India | IXW | More info |
| Sonderborg | Denmark | QSG | More info |
| Sonderborg | Denmark | SGD | More info |
| Sonegaon | India | NAG | More info |
| Songea | Tanzania | SGX | More info |
| Songkhla | Thailand | SGZ | More info |
| Sonoma County | United States | STS | More info |
| Sophia Antipolis | France | SXD | More info |
| Sopu | Papua New Guinea | SPH | More info |
| Sorkjosen | Norway | SOJ | More info |
| Soroako | Indonesia | SQR | More info |
| Sorocaba | Brazil | SOD | More info |
| Soroti | Uganda | SRT | More info |
| Sorrento | Italy | RRO | More info |
| Souanke | Congo | SOE | More info |
| Souda | Greece | CHQ | More info |
| Soure | Brazil | SFK | More info |
| South Andros | Bahamas | TZN | More info |
| South Bend Regional | United States | SBN | More info |
| South Big Horn County | United States | GEY | More info |
| South Galway | Australia | ZGL | More info |
| South Indian Lake | Canada | XSI | More info |
| South Lake Tahoe | United States | TVL | More info |
| South Molle Island | Australia | SOI | More info |
| South Naknek | United States | WSN | More info |
| South Padre Is. Intl | United States | BRO | More info |
| South Trout Lake | Canada | ZFL | More info |
| South West Bay | Vanuatu | SWJ | More info |
| South Weymouth | United States | NZW | More info |
| Southdowns | Zambia | KIW | More info |
| Southern California Logistics | United States | VCV | More info |
| Southern Cross | Australia | SQC | More info |
| Southern Illinois | United States | MDH | More info |
| Southern Seaplane | United States | BCS | More info |
| Southport | Australia | SHQ | More info |
| Southwest Florida Reg | United States | RSW | More info |
| Soyo | Angola | SZA | More info |
| Space Center Exect. | United States | TIX | More info |
| Spaceland | United States | SPX | More info |
| Spangdahlem | Germany | SPM | More info |
| Spanish Wells | Bahamas | SWL | More info |
| Sparrevohn AFS | United States | SVW | More info |
| Sparta Community | United States | SAR | More info |
| SPB | United States | SCM | More info |
| SPB | United States | PKA | More info |
| SPB | United States | PSQ | More info |
| SPB | United States | PMU | More info |
| SPB | United States | MTM | More info |
| SPB | United States | MPB | More info |
| SPB | United States | KKB | More info |
| SPB | United States | EXI | More info |
| SPB | United States | FNR | More info |
| SPB | United States | KAE | More info |
| SPB | United States | KIB | More info |
| SPB | United States | KCN | More info |
| Spb | United States | KKI | More info |
| SPB | United States | KTH | More info |
| SPB | United States | HWI | More info |
| SPB | United States | HYL | More info |
| SPB | United States | HYG | More info |
| SPB | Virgin Islands(U.S.) | SSB | More info |
| SPB | Virgin Islands(U.S.) | SPB | More info |
| SPB | United States | WMK | More info |
| SPB | United States | WSB | More info |
| SPB | United States | WYB | More info |
| SPB | United States | WHD | More info |
| Spence | United States | MUL | More info |
| Spetsai Island | Greece | JSS | More info |
| Spirit Lake | United States | RTL | More info |
| Spirit Of St Louis | United States | SUS | More info |
| Spitsberg | Norway | SYG | More info |
| Splane Memorial | United States | OIL | More info |
| Split | Croatia (Hrvatska) | SPU | More info |
| Sprigg Payne | Liberia | MLW | More info |
| Spring Creek | Australia | SCG | More info |
| Spring Island | Canada | YSQ | More info |
| Springbok | South Africa | SBU | More info |
| Springdale Muni | United States | SPZ | More info |
| Springfield | United States | SGH | More info |
| Springfield MA RR | United States | ZSF | More info |
| Springfield-Branson Rg | United States | SGF | More info |
| Springhill | Australia | OAG | More info |
| Springpoint Arpt | Bahamas | AXP | More info |
| Springvale | Australia | KSV | More info |
| Springvale | Australia | ZVG | More info |
| Squamish | Canada | YSE | More info |
| Squirrel Cove | Canada | YSZ | More info |
| Srinagar | India | SXR | More info |
| St Anthony | Canada | YAY | More info |
| St Anton | Austria | ANT | More info |
| St Augustine | United States | UST | More info |
| St Barthelemy | Guadeloupe | SBH | More info |
| St Catharines | Canada | YCM | More info |
| St Clair County | United States | PLR | More info |
| St Clair County Intl | United States | PHN | More info |
| St Crepin | France | SCP | More info |
| St Francois | Guadeloupe | SFC | More info |
| St Gatien | France | DOL | More info |
| St George | Australia | SGO | More info |
| St George Island | United States | STG | More info |
| St Helens | Australia | HLS | More info |
| St Hubert | Canada | YHU | More info |
| St Jacques | France | RNS | More info |
| St Jean | Canada | YJN | More info |
| St John Island | Virgin Islands(U.S.) | SJF | More info |
| St Lambert Rail Svce. | Canada | XLM | More info |
| St Landry Parish | United States | OPL | More info |
| St Leonard | Canada | YSL | More info |
| St Louis | Senegal | XLS | More info |
| St Lucie County | United States | FPR | More info |
| St Marys | United Kingdom | ISC | More info |
| St Marys | United States | STQ | More info |
| St Marys | United States | XSM | More info |
| St Marys County | United States | LTW | More info |
| St Methode | Canada | YDO | More info |
| St Michael | United States | SMK | More info |
| St Paul | Canada | ZSP | More info |
| St Peter | Germany | PSH | More info |
| St Pierre dela Reunion | Reunion | ZSE | More info |
| St Symphorien | France | TUF | More info |
| St. Johnïs International Airport | Canada | YYT | More info |
| St. Petersburg-Clearwater International | United States | PIE | More info |
| Stallings Field | United States | ISO | More info |
| Stamford Rail STN | United States | ZTF | More info |
| Standiford Field | United States | SDF | More info |
| Staniel Cay | Bahamas | TYM | More info |
| Stansted | United Kingdom | STN | More info |
| Stanthorpe | Australia | SNH | More info |
| Stara Zagora | Bulgaria | SZR | More info |
| Starcke | Australia | SQP | More info |
| State | United States | VSF | More info |
| State | United States | SCB | More info |
| State | United States | HES | More info |
| State | United States | GOL | More info |
| State | United States | ESW | More info |
| State | United States | CHZ | More info |
| State | United States | BDY | More info |
| State | United States | PFC | More info |
| State | United States | REO | More info |
| State | United States | NPT | More info |
| States | United Kingdom | JER | More info |
| Station | Germany | QDU | More info |
| Stauning Vestjyllands Airport | Denmark | STA | More info |
| Stavropol | Russian Federation | STW | More info |
| Stawell | Australia | SWC | More info |
| Ste Catherine | France | CLY | More info |
| Ste Therese Point | Canada | YST | More info |
| Steamboat Springs | United States | SBS | More info |
| Stebbins | United States | WBB | More info |
| Steel Pier Hlpt | United States | JSL | More info |
| Steenkool | Indonesia | ZKL | More info |
| Stefan Field | United States | OFK | More info |
| Stellar Air Park | United States | SLJ | More info |
| Stephen Island | Australia | STF | More info |
| Stephens County | United States | BKD | More info |
| Stephenville | Canada | YJT | More info |
| Stevens Field | United States | PGO | More info |
| Stevens Point | United States | STE | More info |
| Stevens Village | United States | SVS | More info |
| Stewart | United States | SWF | More info |
| Stewart | Canada | ZST | More info |
| Stewart Island | New Zealand (Aotearoa) | SZS | More info |
| St-Georges de lOyapock | French Guiana | OYP | More info |
| Stinson Municipal | United States | SSF | More info |
| Stjordal Railway | Norway | XUU | More info |
| St-Laurent du Maroni | French Guiana | LDX | More info |
| Stockholm | Papua New Guinea | SMP | More info |
| Stockton | United States | SCK | More info |
| Stoelmans Eiland | Suriname | SMZ | More info |
| Stokka | Norway | SSJ | More info |
| Stolport | Norway | RET | More info |
| Stolport | United States | VLO | More info |
| Stolport | Norway | VRY | More info |
| Stony Rapids | Canada | YSF | More info |
| Stony River | United States | SRV | More info |
| Stord Airport | Norway | SRP | More info |
| Storekvina Railway | Norway | XUV | More info |
| Storen Railway | Norway | XUW | More info |
| Stornoway | United Kingdom | SYY | More info |
| Strahan | Australia | SRN | More info |
| Strathmore | Australia | STH | More info |
| Streaky Bay | Australia | KBY | More info |
| Stronsay | United Kingdom | SOY | More info |
| Stroud | United States | SUD | More info |
| Strzhewoi | Russian Federation | SWT | More info |
| Stuart Island | United States | SSW | More info |
| Stuart Island | Canada | YRR | More info |
| Stung Treng | Cambodia | TNX | More info |
| Sturdee | Canada | YTC | More info |
| Sturt Creek | Australia | SSK | More info |
| Sturup | Sweden | MMX | More info |
| Stuttgart | United States | SGT | More info |
| Stykkisholmur | Iceland | SYK | More info |
| Suabi | Papua New Guinea | SBE | More info |
| Suai | Indonesia | UAI | More info |
| Suapan | Botswana | SXN | More info |
| Suavanao Airstrip | Solomon Islands | VAO | More info |
| Sucua | Ecuador | SUQ | More info |
| Sud Corse | France | FSC | More info |
| Sudbury | Canada | YSB | More info |
| Sudbury Jct Rail Stn | Canada | XDY | More info |
| Sudureyri | Iceland | SUY | More info |
| Suedbahnhof Rail | Austria | XWC | More info |
| Suffield | Canada | YSD | More info |
| Suffolk County | United States | FOK | More info |
| Sugar Land Municipal | United States | SGR | More info |
| Sugimanuru | Indonesia | RAQ | More info |
| Sui | Pakistan | SUL | More info |
| Sui Fen He | China | FUD | More info |
| Suia-Missu | Brazil | SWM | More info |
| Sukhothai | Thailand | THS | More info |
| Suki | Papua New Guinea | SKC | More info |
| Sukkur | Pakistan | SKZ | More info |
| Sulaco | Honduras | SCD | More info |
| Sulaimaniyah International | Iraq - Kurdistan | OSO | More info |
| Sulayel | Saudi Arabia | SLF | More info |
| Sule | Papua New Guinea | ULE | More info |
| Sullivan Bay | Canada | YTG | More info |
| Sullivan County Intl | United States | MSV | More info |
| Sulphur Springs | United States | SLR | More info |
| Sultan Abdul Aziz Shah | Malaysia | SZB | More info |
| Sultan Ismail Intl | Malaysia | JHB | More info |
| Sultan Mahmood | Malaysia | TGG | More info |
| Sultan Taha Syarifudn | Indonesia | DJB | More info |
| Sumare | Brazil | RWS | More info |
| Sumbawanga | Tanzania | SUT | More info |
| Sumbe | Angola | NDD | More info |
| Sumburgh | United Kingdom | LSI | More info |
| Summer Beaver | Canada | SUR | More info |
| Summerside | Canada | YSU | More info |
| Summit | United States | UMM | More info |
| Summit Lake | Canada | IUM | More info |
| Sumy | Ukraine | UMY | More info |
| Sun Moon Lake | Taiwan | SMT | More info |
| Sun River | United States | SUO | More info |
| Sun Valley | United States | SUN | More info |
| Sunan | Korea (north) | FNJ | More info |
| Sundsvall/Harnosand | Sweden | SDL | More info |
| Sung Shan | Taiwan | TSA | More info |
| Sungai Pakning | Indonesia | SEQ | More info |
| Sungei Tekai | Malaysia | GTK | More info |
| Sunyani | Ghana | NYI | More info |
| Supadio | Indonesia | PNK | More info |
| Sur | Oman | SUH | More info |
| Sur Reina Sofia | Spain | TFS | More info |
| Surat | India | STV | More info |
| Surat Thani | Thailand | URT | More info |
| Surfdale | New Zealand (Aotearoa) | WIK | More info |
| Surfers Paradise | Australia | SFP | More info |
| Surgut | Russian Federation | SGC | More info |
| Suria | Papua New Guinea | SUZ | More info |
| Surigao | Philippines | SUG | More info |
| Surin | Thailand | PXR | More info |
| Susanville | United States | SVE | More info |
| Sussex County | United States | GED | More info |
| Suwon | Korea (South) | SWU | More info |
| Suzhou | China | SZV | More info |
| Svalbard | Norway | LYR | More info |
| Svay Rieng | Cambodia | SVR | More info |
| Sveg | Sweden | EVG | More info |
| Swakopmund | Namibia | SWP | More info |
| Swan Hill | Australia | SWH | More info |
| Swan River | Canada | ZJN | More info |
| Sweetwater | United States | SWW | More info |
| Sweetwater County | United States | RKS | More info |
| Swift Current | Canada | YYN | More info |
| Swindon | United Kingdom | SWI | More info |
| Syangboche | Nepal | SYH | More info |
| Sydney | Canada | YQY | More info |
| Sydney Bankstown | Australia | BWU | More info |
| Sydney Water Airport (Rose Bay) | Australia | RSE | More info |
| Sydney West | Australia | SWZ | More info |
| Syktyvkar | Russian Federation | SCW | More info |
| Sylvester | United States | SYV | More info |
| Syracuse Hancock International Airport | United States | SYR | More info |
| Syracuse NY Rail | United States | ZYQ | More info |
| Syros Island | Greece | JSY | More info |