G
- Galaxy Airlines (? - 1986)
- Gem State Airlines (1979, to Golden Gate Airlines)
- Gemini Air Cargo
- Global International Airways (1981 - 1984)
- Golden Gate Airlines (1980 - 1981)
- Golden Pacific Airlines (1969 - 1973)
- Golden Pacific Airlines (1981 - 1988)
- Golden West Airlines
- Great Plains Airlines (2001 - 2004)
- Great Western Aviation Company (to AirVantage Airlines)
- Gulf Air Transport (1979 - 1990, renamed Trans Ocean Airways)
Read more about this topic: List Of Defunct Airlines Of The United States