See Flag carrier for a list of country national airlines.

National Airlines was used by several airlines including:

• National Airlines (5M) (IATA: 5M, ICAO: MUA, Callsign: Murray Air) (2008-) based in the United States
• National Airlines (N7) (IATA: N7, ICAO: ROK, Callsign: Red Rock) (1999-2002) based in the United States
• National Airlines (NA) (IATA: NA, ICAO: NAL, Callsign: National) (1934-1980) based in the United States
• National Airlines (YJ) (IATA: YJ, ICAO: NTN) based in South Africa
• National Airlines (1931) (1931-1940) based in the United States acquired by Delta Airlines
• National Airlines (1983) (1983-1986) based in the United States
• National Airlines (Chile) (1992-1998) based in Chile

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