A national airline is a country's flag carrier.
The National Airlines name has been used by several United States airlines:
National Airlines (1934–1980), a passenger airline based in Miami, Florida National Airlines (1983–1985), a cargo and charter airline, based in New York, New York Private Jet Expeditions marketed scheduled services as National Airlines in 1994 National Airlines (1999–2002), low-cost airline based in Las Vegas, Nevada National Airlines (N8), a cargo and charter airline based in Orlando, Florida
See also Air National, an airline based in Auckland, New Zealand Nationair National Airways Corporation, an airline based in Johannesburg, South Africa New Zealand National Airways Corporation, New Zealand's state-owned domestic carrier 1945–1978