| Iamalele | Papua New Guinea | IMA | More info |
| Iasi | Romania | IAS | More info |
| Iaura | Papua New Guinea | IAU | More info |
| Ibadan | Nigeria | IBA | More info |
| Ibague | Colombia | IBE | More info |
| Iberia | Peru | IBP | More info |
| Ibiza | Spain | IBZ | More info |
| Ibo | Mozambique | IBO | More info |
| Iboki | Papua New Guinea | IBI | More info |
| Icabaru | Venezuela | ICA | More info |
| Iconi | Comoros | YVA | More info |
| Icy Bay | United States | ICY | More info |
| Idiofa | Zaire | IDF | More info |
| Idre | Sweden | IDB | More info |
| Iejima | Japan | IEJ | More info |
| Iffley | Australia | IFF | More info |
| Igarka | Russian Federation | IAA | More info |
| Igiugig | United States | IGG | More info |
| Igloolik | Canada | YGT | More info |
| Ign Agramonte Intl | Cuba | CMW | More info |
| Ignace | Canada | ZUC | More info |
| Igor I. Sikorsky Mem. | United States | BDR | More info |
| Iguela | Gabon | IGE | More info |
| Ihosy | Madagascar | IHO | More info |
| Ihu | Papua New Guinea | IHU | More info |
| Ikaria | Greece | JIK | More info |
| Ikela | D. R. Congo (Zaire) | IKL | More info |
| Iki | Japan | IKI | More info |
| Ila Da Chilonzuene | Mozambique | IDC | More info |
| Ilaam | Iran | IIL | More info |
| Ilaka | Madagascar | ILK | More info |
| Ile Des Pins | New Caledonia | ILP | More info |
| Ile Ouen | New Caledonia | IOU | More info |
| Ilebo | Zaire | PFR | More info |
| Ileg | Papua New Guinea | ILX | More info |
| Iles De La Madeleine | Canada | YGR | More info |
| Ilford | Canada | ILF | More info |
| Ilha Solteira | Brazil | ILB | More info |
| Iliamna | United States | ILI | More info |
| Illaga | Indonesia | ILA | More info |
| Illinois Valley Regnl | United States | VYS | More info |
| Illis Airbase | Germany | ILH | More info |
| Illizi | Algeria | VVZ | More info |
| Ilmajoki | Finland | SJY | More info |
| Ilo | Peru | ILQ | More info |
| Ilorin | Nigeria | ILR | More info |
| Ilu | Indonesia | IUL | More info |
| Ilulissat | Greenland | JAV | More info |
| Imane | Papua New Guinea | IMN | More info |
| Imbaimadai | Guyana | IMB | More info |
| Immokalee | United States | IMM | More info |
| Imonda | Papua New Guinea | IMD | More info |
| Imperatriz | Brazil | IMP | More info |
| Imperial | United States | IML | More info |
| Imperial County | United States | IPL | More info |
| Impfondo | Congo | ION | More info |
| Imsik Airport | Turkey | BXN | More info |
| In Amenas | Algeria | IAM | More info |
| In Guezzam | Algeria | INF | More info |
| In Salah | Algeria | INZ | More info |
| Inagua | Bahamas | IGA | More info |
| Inanwatan | Indonesia | INX | More info |
| INC | Paraguay | VMI | More info |
| Indagen | Papua New Guinea | IDN | More info |
| Indaselassie | Ethiopia | SHC | More info |
| Independence | Belize | INB | More info |
| Independence | United States | IDP | More info |
| Indian Mountain AFS | United States | UTO | More info |
| Indiana | United States | IDI | More info |
| Indigo Bay Lodge | Mozambique | IBL | More info |
| Indira Gandhi Intl | India | DEL | More info |
| Indulkana | Australia | IDK | More info |
| Industrial | United States | ROW | More info |
| Industrial | United States | OTM | More info |
| Industrial | United States | TIW | More info |
| Industrial Airpark | United States | HBB | More info |
| Industrial Airport | Canada | YDC | More info |
| Ine Island | Marshall Islands | IMI | More info |
| Inedbirenne | Algeria | DJG | More info |
| Ingalls Field | United States | HSP | More info |
| Ingeniero Jacobacci | Argentina | IGB | More info |
| Ingham | Australia | IGH | More info |
| Ingolstadt-Manching | Germany | IGS | More info |
| Inhaca | Mozambique | IHC | More info |
| Inhambane | Mozambique | INH | More info |
| Inhaminga | Mozambique | IMG | More info |
| Inisheer | Ireland | INQ | More info |
| Inishmaan | Ireland | IIA | More info |
| Injune | Australia | INJ | More info |
| Inkerman | Australia | IKP | More info |
| Innamincka | Australia | INM | More info |
| Innisfail | Australia | IFL | More info |
| Inongo | D. R. Congo (Zaire) | INO | More info |
| Inta | Russian Federation | INA | More info |
| Intercontinental | United States | LJC | More info |
| Intermediate | United States | MHM | More info |
| Intermediate | United States | MDO | More info |
| Intermediate | United States | MOS | More info |
| Intermediate | United States | PMB | More info |
| Intermediate | United States | SKW | More info |
| Intermediate | United States | TSG | More info |
| Intermediate | United States | HVE | More info |
| Intermediate | United States | CYT | More info |
| Intermediate Field | United States | BIG | More info |
| Internacional | Brazil | CGR | More info |
| Internacional | Brazil | CMG | More info |
| Internacional | Brazil | TBT | More info |
| Internacional | Mexico | ZIH | More info |
| Internacional | Argentina | RGL | More info |
| Internacional | Brazil | PNZ | More info |
| Internacional | Brazil | MCP | More info |
| International | Bahamas | MHH | More info |
| International | United States | MEM | More info |
| International | South Africa | MBD | More info |
| International | Somalia | MGQ | More info |
| International | Maldives | MLE | More info |
| International | United States | MOT | More info |
| International | United States | ORF | More info |
| International | United States | OLS | More info |
| International | United States | OLF | More info |
| International | American Samoa | PPG | More info |
| International | Brazil | PMG | More info |
| International | Turks and Caicos Islands | PLS | More info |
| International | Cyprus | PFO | More info |
| International | United States | PBI | More info |
| International | United States | SLC | More info |
| International | Libya | TIP | More info |
| International | United States | LBB | More info |
| International | United States | LRD | More info |
| International | United States | JAX | More info |
| International | United States | KTN | More info |
| International | Taiwan | KHH | More info |
| International | Kuwait | KWI | More info |
| International | United States | IND | More info |
| International | United States | IAG | More info |
| International | Turks and Caicos Islands | XSC | More info |
| International | Canada | YEG | More info |
| International | United States | TUS | More info |
| International | India | TRV | More info |
| International | Northern Mariana Islands | SPN | More info |
| International | United States | YUM | More info |
| International | Thailand | CNX | More info |
| International | Egypt | CAI | More info |
| International | Argentina | BRC | More info |
| International | Iraq | BSR | More info |
| International | Brazil | CPQ | More info |
| International | United States | CXL | More info |
| International | Bahamas | BIM | More info |
| International | United States | BTV | More info |
| International | Burundi | BJM | More info |
| International | Thailand | BKK | More info |
| International | United States | AMA | More info |
| International | Mexico | ACN | More info |
| International | United States | AVP | More info |
| International | Nigeria | ABV | More info |
| International | United States | ALI | More info |
| International | Yemen | ADE | More info |
| International | United States | CRP | More info |
| International | United States | DRT | More info |
| International | Tanzania | DAR | More info |
| International | Syria | DAM | More info |
| International | United States | ERI | More info |
| International | Bahamas | ELH | More info |
| International | United States | EYW | More info |
| International | United States | ELP | More info |
| International | United States | FLL | More info |
| International | United States | FAI | More info |
| International | Tuvalu | FUN | More info |
| International | United States | GTF | More info |
| International | United States | GGW | More info |
| International | South Africa | GCJ | More info |
| International | United States | GEG | More info |
| International | United States | HNL | More info |
| International | United States | HUL | More info |
| International | Japan | HIJ | More info |
| International | Nauru | INU | More info |
| Intl | Bahamas | NAS | More info |
| Intl (Byrd Field) | United States | RIC | More info |
| Intl Abraham Gonzalez | Mexico | CJS | More info |
| Intl Heliport | United States | JIO | More info |
| Intl Jetport | United States | PWM | More info |
| Intl Quetzalcoatl | Mexico | NLD | More info |
| Inukjuak | Canada | YPH | More info |
| Inus | Papua New Guinea | IUS | More info |
| Inuvik/Mike Zubko | Canada | YEV | More info |
| Invercargill | New Zealand (aotearoa) | IVC | More info |
| Inverell | Australia | IVR | More info |
| Inverlake | Canada | TIL | More info |
| Inverness | United Kingdom | INV | More info |
| Inverway | Australia | IVW | More info |
| Inyati | South Africa | INY | More info |
| Ioannina | Greece | IOA | More info |
| Ioannis Kapodistrias | Greece | CFU | More info |
| Iokea | Papua New Guinea | IOK | More info |
| Ioma | Papua New Guinea | IOP | More info |
| Iowa City | United States | IOW | More info |
| Iowa Falls | United States | IFA | More info |
| Ipiau | Brazil | IPU | More info |
| Ipil | Philippines | IPE | More info |
| Ipiranga | Brazil | IPG | More info |
| Ipoh | Malaysia | IPH | More info |
| Ipota | Vanuatu | IPA | More info |
| Ipswich (Closed) | United Kingdom | IPW | More info |
| Iqaluit | Canada | YFB | More info |
| Iran Shahr | Iran | IHR | More info |
| Irece | Brazil | IRE | More info |
| Ireland West Airport Knock | Ireland | NOC | More info |
| Iriona | Honduras | IRN | More info |
| Irkutsk | Russian Federation | IKT | More info |
| Isabel Pass | United States | ISL | More info |
| Isafjordur | Iceland | IFJ | More info |
| Ischia | Italy | ISH | More info |
| Iscor Heliport | South Africa | HIC | More info |
| Iscuande | Colombia | ISD | More info |
| Isfahan | Iran | IFN | More info |
| Ishigaki | Japan | ISG | More info |
| Ishurdi | Bangladesh | IRD | More info |
| Isisford | Australia | ISI | More info |
| Isla Grande | Puerto Rico | SIG | More info |
| Isla Mujeres | Mexico | ISJ | More info |
| Islamabad Intl | Pakistan | ISB | More info |
| Island Heliport | United States | JHC | More info |
| Island Lk/Garden Hill | Canada | YIV | More info |
| Islas Malvinas | Argentina | USH | More info |
| Isle Of Coll | United Kingdom | COL | More info |
| Isle Of Colonsay | United Kingdom | CSA | More info |
| Isparta | Turkey | ISE | More info |
| Itabuna | Brazil | ITN | More info |
| Itacoatiara | Brazil | ITA | More info |
| Itaituba | Brazil | ITB | More info |
| Itambacuri | Brazil | ITI | More info |
| Itami | Japan | ITM | More info |
| Itaperuna | Brazil | ITP | More info |
| Itaqui | Brazil | ITQ | More info |
| Itauba | Brazil | AUB | More info |
| Itokama | Papua New Guinea | ITK | More info |
| Ittoqqortoormiit | Greenland | OBY | More info |
| Itubera | Brazil | ITE | More info |
| Itumbiara | Brazil | ITR | More info |
| Ivalo | Finland | IVL | More info |
| Ivangrad | Yugoslavia | IVG | More info |
| Ivano-Frankovsk | Ukraine | IFO | More info |
| Ivanova | Russian Federation | IWA | More info |
| Ivishak | United States | IVH | More info |
| Ivujivik | Canada | YIK | More info |
| Iwami | Japan | IWJ | More info |
| Iwo Jima Airbase | Japan | IWO | More info |
| Ixtepec | Mexico | IZT | More info |
| Izhevsk | Russian Federation | IJK | More info |
| Izumo | Japan | IZO | More info |