This was a brief assignment and in early May the squadron was transferred to HMS Furious at Campbeltown, thus missing Glorious's sinking.

On 25 December 1940, two of the squadron's Martlets shot down a Junkers Ju 88 off Scapa Flow, thus scoring the first aerial victory in Europe by any variant of the Grumman F4F Wildcat.

[2] In August 1941, an 804 Squadron Sea Hurricane from HMS Maplin, piloted by Robert Everett, shot down an Fw 200 Condor, the first such victory for a catapult launched aircraft.

[2] The squadron participated in the successful attack on 3 April 1944 on the German battleship Tirpitz (Operation Tungsten) in Altafjord, northern Norway.

[2] The squadron reformed in September 1944 at Wingfield airfield, South Africa with 24 Hellcat IIs and in January 1945, they embarked on HMS Ameer to provide cover during the landings on Ramree Island, and subsequently missions over Sumatra and Malaya.