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

| Company | Type | Location | Codes |
|---|---|---|---|
| Klenawicus Airfield | aerodrome | Shelter Island, United States | — |
| Klerksdorp Airport | international | South Africa | IATA KXE · ICAO FAKD |
| Kletskiy (AHR) | aerodrome | Russia | — |
| Kletsko-Pochtovskiy | aerodrome | Russia | — |
| Kleven Private Airport | aerodrome | United States | — |
| Kliepačy | aerodrome | Belarus | — |
| Klies Air Strip | aerodrome | United States | — |
| Klietz/Scharlibbe | aerodrome | Germany | ICAO EDCL |
| Klimovo Air Base | military airfield | Russia | — |
| Klin air base | military airfield | Russia | ICAO UUMN |
| Kline Kill Airport | aerodrome | United States | — |
| Kling Airstrip | aerodrome |
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.
| Kiamba, Philippines |
| — |
| Klipkraal Airstrip | aerodrome | South Africa | — |
| Klipriver Airfield | aerodrome | South Africa | — |
| Klishino Airfield | aerodrome | Russia | — |
| Klockner Airport | aerodrome | United States | — |
| Kłodzko | aerodrome | Poland | — |
| Klong 15 Nakhon Nayok Thanawana | aerodrome | Thailand | — |
| Klong 16 Ongkarak Airport | aerodrome | Thailand | — |
| KLONG SEE | aerodrome | Thailand | — |
| Klosterman Landing Area | aerodrome | United States | — |
| Kluang Airstrip | aerodrome | Kluang, Malaysia | ICAO WMAP |
| Klutts Field | aerodrome | United States | — |
| Klyuchi Air Base | military airfield | Russia | — |
| Km 192 Airport | aerodrome | Ecuador | ICAO SEKK |
| Km 60 Airport | aerodrome | Ecuador | — |
| KM 95 CFL Airport (Not in use) | aerodrome | Congo - Kinshasa | ICAO FZIG |
| Knape Airport | aerodrome | United States | — |
| Knapp Airport | aerodrome | United States | — |
| Knee Lake Airport | international | Canada | IATA YKE |
| Knee Lake Seaplane Base | aerodrome | Canada | — |
| Kneeland Airport | aerodrome | United States | — |
| Knettishall Airstrip | aerodrome | United Kingdom | — |
| Kněževes Airstrip | private airstrip | Czechia | — |
| Knight Aire Airport | aerodrome | United States | — |
| Knight Field | aerodrome | Grimes, United States | — |
| Knight Sky Airport | aerodrome | United States | — |
| Knockbain Farm | aerodrome | United Kingdom | — |
| Knoeber Landing Strip | aerodrome | United States | — |
| Knokke Heliport | heliport | Knokke-Heist, Belgium | — |
| Knoll Airstrip | private airstrip | Hackmans Gate, United Kingdom | — |
| Knollwood Farm Airport | aerodrome | United States | — |
| Knoppieskraal | aerodrome | South Africa | — |
| Knowsley Airpark | aerodrome | Australia | — |
| Knox Airport | aerodrome | United States | — |
| Knox Army Heliport | heliport | United States | ICAO KFHK |
| Knox Bay Seaplane Base | aerodrome | United States | — |
| Knox County Airport | aerodrome | United States | — |
| Knox County Regional Airport | international | United States | IATA RKD · ICAO KRKD |
| Knox Landing Airport | aerodrome | York, United States | — |