The squadron was formed at Lawnton Airfield, Queensland Australia on 15 December 1943,[1] made up of RAF Aircrew and RAAF groundstaff, to provide air defence duties with Spitfires, as the RAAF Kittyhawks were inadequate for interception missions.

May 1944 the unit moved to RAAF Base Amberley, Queensland,[1] while June saw a move to Strauss Airfield, Northern Territory with a detachment at Truscott Airfield, Western Australia.

548 Squadron RAF on a sweep over Selaru Island, 300 miles north of Darwin.

In October they went to Parap Airfield (Darwin/Civil), Northern Territory, maintaining their detachment in Truscott.

The squadron was disbanded, according to some sources, at Parap Airfield, Darwin, on 9 October 1945.