International airports, regional fields and GA aerodromes — the places every mission starts and ends.

| Company | Type | Location | Codes |
|---|---|---|---|
| International Como Hydrobase | aerodrome | Italy | ICAO LILY |
| Internationale Luchthaven Kortrijk-Wevelgem | international | Belgium | IATA KJK · ICAO EBKT |
| International Falls Seaplane Base | aerodrome | United States | — |
| International Peace Garden Airfield | aerodrome | Canada | — |
| International Peace Garden Airfield | aerodrome | United States | — |
| International Seaplane Base | aerodrome | United States | — |
| Inter-State Airport | aerodrome | United States | — |
| Interstate Landing Strip | aerodrome | United States | — |
| Intervale Airport | aerodrome | Henniker, United States | — |
| Intingwe Airstrip | aerodrome | South Africa | — |
| Into the Wind Airport | aerodrome | United States |
aerodrome 30,878international 8,351military airfield 1,867private airstrip 1,800heliport 555regional 460
United States 15,232Brazil 2,982Australia 2,025Canada 1,765France 1,355Russia 1,265United Kingdom 1,109South Africa 938Germany 879Colombia 835Italy 718Indonesia 681Argentina 621Ukraine 570Papua New Guinea 536China 489Mexico 478Venezuela 468Spain 414India 411Namibia 376Chile 358Congo - Kinshasa 356South Sudan 331Poland 327Czechia 277New Zealand 250Kenya 242Sweden 222Japan 195Philippines 188Norway 179Botswana 151Portugal
Operators claiming an entry can correct facts, add services and certificates, and mark their page verified. Claiming is free — see a company’s page for the claim link.
| — |
| Intu Afrika Lodge Airstrip | aerodrome | Namibia | ICAO FYIA |
| Intuto Airport | aerodrome | Peru | — |
| Inukjuak Airport | international | Canada | IATA YPH · ICAO CYPH |
| Inuvik Airport | international | Canada | IATA YEV · ICAO CYEV |
| Inuvik / Shell Lake Seaplane Base | aerodrome | Canada | — |
| Invercargill Airport | international | New Zealand | IATA IVC · ICAO NZNV |
| Inverdoorn Reserve Airfield | aerodrome | South Africa | — |
| Inverell Airport | international | Australia | IATA IVR · ICAO YIVL |
| Inverell North | aerodrome | Australia | ICAO YINO |
| Inverleigh Airport | aerodrome | Australia | — |
| Inverloch Airfield | aerodrome | Australia | ICAO YIVE |
| Invermere Airport | aerodrome | Canada | — |
| Inverness Airport | international | United Kingdom | IATA INV · ICAO EGPE |
| Inverness Airport | aerodrome | Inverness, United States | ICAO KINF |
| Inverway Airport | international | Australia | IATA IVW |
| Inyati Game Lodge Airstrip | international | South Africa | IATA INY |
| Inyo County Sheriff Search and Rescue Heliport | heliport | United States | — |
| Inyokern Airport | international | Inyokern, United States | IATA IYK · ICAO KIYK |
| Inyonga Airstrip | aerodrome | Tanzania | — |
| Ioannina National Airport "King Pyrros" | international | Ιωάννινα, Greece | IATA IOA · ICAO LGIO |
| Ioma Airport | international | Papua New Guinea | IATA IOP |
| Ionia County Airport | aerodrome | United States | — |
| Iosco County Airport | international | United States | IATA ECA |
| Iowa Canyon Ranches Landing Strip | private airstrip | United States | — |
| Iowa City Municipal Airport | international | United States | IATA IOW · ICAO KIOW |
| Iowa County Airport | aerodrome | United States | ICAO KMRJ |
| Iowa Falls Municipal Airport | international | United States | IATA IFA · ICAO KIFA |
| Ipatovo | aerodrome | Russia | — |
| Ipeke Airport | aerodrome | Congo - Kinshasa | ICAO FZBU |
| Ipil Airport | international | Philippines | IATA IPE · ICAO RPMV |
| Ipope | aerodrome | Congo - Kinshasa | — |
| Ipota Airport | international | Vanuatu | IATA IPA · ICAO NVVI |
| Ipy Ranch Airport | aerodrome | United States | — |
| Iqaluit Airport | international | Canada | IATA YFB · ICAO CYFB |
| Iraan Municipal Airport | international | United States | IATA IRB · ICAO K2F0 |
| Ira Biffle Airfield | aerodrome | United States | — |
| Iraklia Heliport | heliport | Greece | — |
| Iranamadu Airport | military airfield | Sri Lanka | — |
| Iran Helicopter Company | aerodrome | Iran | — |