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- WestAir Commuter Airlines (1978 - 1992)
- West Coast Airlines (1940s - 1968, to Hughes Airwest)
- Western (2007)
- Western Airlines (1925 - 1987)
- Western Express Air (? - 2007)
- Western Pacific Airlines (ceased operations 1998)
- Westward Airways (2002 - 2005)
- Wien Air Alaska
- Wilmington - Catalina Air Line
- WinAir Airlines (1998 - 1999)
- Wings Airways
- Wright Airlines (1966 - ?)
Read more about this topic: List Of Defunct Airlines Of The United States