DAT was founded as Danish Air Transport and started operations in 1989, initially as a cargo airline.

Soon special operations like the transport of live horses or supplies for the Paris Dakar Rally in Africa were offered, too.

Passenger charter flights were added in 1994, with the subsequent launch of scheduled services on 18 November, 1996.

Prior to 2020, the airline changed its legal name and brand from Danish Air Transport to the abbreviated DAT.

[5] In September 2021, DAT retired their sole McDonnell Douglas MD-83 which was the last aircraft of its type operated in Europe.