Trans Polar A/S was a Norwegian charter airline which operated between June 1970 and May 1971. The airline operated a fleet of three Boeing 720s and had a close cooperation with Aer Lingus for maintenance. Trans Polar was established by Thor Tjøntveit, although he never held any management positions. The airline was headquartered in Oslo, although most of the flights operated out of Copenhagen, Denmark, which was the base of Spies Rejser, Trans Polar's largest customer. The airline held operating permission from Norway and Denmark, but not Sweden; nevertheless, they operated several illegal flights out of Stockholm.