| Business Name | Address |
| Agni Air | Shantinagar, GPO Box: 23650, Ktm |
| Buddha Air | Jawalakhel, GPO Box: 2167, Ktm |
| Nepal Airlines | NAC Building, GPO Box: 401, Ktm |
| Pakistan International Airlines | Hattisar |
| Yeti Airlines | Tilganga, GPO Box: 20011, Ktm |
| AEROFLOT Russian Int'l Airlines (Druzba Pvt. Ltd.) | Kamaladi, GPO Box: 1147, Ktm |
| Agni Air | Shantinagar, GPO Box: 23650, Ktm |
| Air China | Lazimpat |
| Air India | Hattisar, GPO Box: 314, Ktm |
| Air Mauritius | Kamaladi, GPO Box: 482, Ktm |
| Air Nepal International | Teenkune, GPO Box: 4243, Ktm |
| Air Nepal International | Pokhara |
| Air Sahara Airlines | Durbar Marg, GPO Box: 4163, Ktm |
| Alitalia Airlines | Naxal, GPO Box: 24276, Ktm |
| Austrian Air | Kamaladi, GPO Box: 536, Ktm |
