The squadron has its roots in the No. 330 Squadron RAF, which conducted maritime surveillance, Arctic convoy escort and anti-submarine warfare during the Second World War. It was established on Iceland on 25 April 1941, where it operated Northrop N-3PB and Consolidated PBY Catalina seaplanes. It relocated to RAF Oban in Scotland on 23 January 1943 and adopted Short Sunderland flying boats in the same role. It relocated to Sola in June 1945, where it operated mostly as an airline until December, when it was deactivated.