A list of aircraft operators that have that have suffered an accident, serious incident or hijacking. The list may also contain defunct airlines or airlines that in the meantime have changed their name or have merged.

Airlines:
Agni Air
Buddha Air
Everest Air
Gorkha Airlines
Lumbini Airways
Necon Air
Nepal Airlines (formerly known as Royal Nepal Airlines)
Nepal Airways
Royal Nepal Airlines (renamed Nepal Airlines ca 2007)
Shangri-La Air (merged with Necon Air in 2001)
Sita Air
Skyline Airways
Tara Air
Yeti Airlines

Government:
Nepalese CAA
Nepalese Royal Flight

Military:
Nepal Army Air Wing
Royal Nepalese Air Force