154 Squadron Royal Air Force was formed on 7 August 1918, but was disbanded on 11 September having not received any aircraft.

It was briefly located in the south west of England then based at RAF Hornchurch.

In November 1942 it moved to Gibraltar and Algeria to take part in Operation Torch.

From 23 August 1944 it was based at Fréjus, France, providing air cover for the forces that moved north to join those that had landed at Normandy.

It was disbanded in Naples on 1 November 1944, but reformed on 16 November 1944 at RAF Biggin Hill to escort bombers and flew Mustangs until it was finally disbanded on 31 March 1945.