Airtaco (founded in August 1950 as Aero Scandia) can be considered as Linjeflyg's predecessor and was merged into the new airline, including its entire fleet. When Linjeflyg was founded, Airtacos four Lockheed Model 18 Lodestar and three Douglas DC-3 were integrated into the new fleet.
In October 1983, Linjeflyg moved from Stockholm-Bromma Airport in the central part of Stockholm to Stockholm-Arlanda Airport in the north of Stockholm. Bromma had been the main hub for Linjeflyg since 1957. On 10 September 1990, Scandinavian Airlines System (SAS) sold their 50% in Linjeflyg to Bilspedition for 475 million Swedish crowns (SEK). Approximately six months later SAS bought it back. In February 1992, Linjeflyg became too big a threat for SAS as they planned a strategic alliance with Braathens and Maersk Air. The alliance would have been too competitive on the intra-Scandinavian capital routes and on the domestic networks. Consequently, SAS bought up the last 50% in Linjeflyg, to perpetuate its dominance. On 1 January 1993, Linjeflyg was merged into SAS. Linjeflyg was Sweden's largest domestic airline. It served over 20 domestic airports and carried over 5 million people annually. Linjeflyg had 2200 employees in 1992, and was the largest Fokker F28 operator in the world, at that time.
Operated both Fokker F28 Mk.1000 (3) and Fokker F28 Mk.4000 (17). Excludes one short-term leased F28 Mk.1000 from Martinair as well as two F28 Mk.6000 leased from Fokker. Was the launch customer of the Mk.4000 which was a customized version for Linjeflyg.
On November 20, 1964, Flight 267V, operated by Convair 440 SE-CCK, crashed during an approach to Ängelholm joint civil/military Airport. In instrument conditions, the crew abandoned the set procedure and began the final approach too early. The reason for this must have been that the crew allowed themselves to be misled by an arrangement of lights peculiar to the airfield with which, apart from certain information received during the approach, they were not acquainted. Thirty-one of 43 people were killed in Sweden's worst air disaster.