| Abbreviation | Definition |
|---|---|
| JF17 | Jet Fighter |
| JIAC | Jordan International Air Cargo |
| JKIA | Jomo Kenyatta International Airport |
| JL | Japan Airways |
| JSOAD | Joint Special Operations Aviation Detachment |
| JSS | Job Summary Sheet |
| JYIA | Jinan Yaoqiang International Airport |
| KA | Cathay Dragon (Used to be called Dragonair) |
| KABQ | Albuquerque International Airport, Albuquerque, New Mexico USA |
| KAK | Kar Airport Kar |
| KARF | Kamra Avionics and Radar Factory |
| KC-135 | Air Force designation for Refueler (modified mission) C is the Air Force designation for Cargo (primary mission) 135 is the aircraft model |
| KCA | Kerbal Civilian Aircraft |
| KFIA | King Fahd International Airport |
| KFMN | Four Corners Regional Airport, Farmington, New Mexico USA |
| KIC | Killed In Crash |
| KKIA | Kenneth Kaunda International Airport |
| KKIA | King Khalid International Airport |
| KKIA | Kota Kinabalu International Airport |
| KLC | KLM Cityhopper |