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:
Air Cargo Plus
Air Cess (Liberia)
Air Liberia
Atlantic Aviation Services
Bridge Airlines
Cougar Cargo
Excel Air Services, Inc.
International Air Services
Jet Cargo-Liberia
Liberia Airways
Liberian World Airlines
Lonestar Airways
Midair Limited
Occidental Airlines
Occidental Airlines (Liberia)
Santa Cruise Imperial Airlines
Satgur Air Transport
Simon Air
Sosoliso Airlines (Liberia)
Trans-African Airways
Transway Air Services
United Africa Airline (Liberia)
Weasua Air Transport

Military:
Liberian Air Force
Liberian Army Air Reconnaissance Unit