A total of 48 Royal Canadian Air Force (RCAF) squadrons fought beside those of the RAF during the WWII. These included the all Canadian No 6 Group of Bomber Command, whilst RCAF fighter units played a major role in the 2nd Tactical Air Force (No 83 Group, 2nd TAF). In the meantime, the RCAF operated the British Commonwealth Air Training Plan (BCATP) in Canada, training a total of more than 130,000 aircrew for the allied war effort.

Late in 1944 the Canadian Government decided to form carrier air units on two light fleet carriers. The first two fighter squadrons, Nos. 803 and 883, flew Seafires, initially under Royal Navy command in the United Kingdom. No 883 Squadron was temporarily disbanded due to manning difficulties, bit No 803 Squadron went to Canada with HMCS Warrior after becoming a Royal Canadian Navy unit on 24 January 1946.

In all, Canada used 35 Seafire F.XV's and 7 Spitfires. The latter were used in Canada for tests and experiments and as ground instructional airframes. A further 3 Spitfires arrived for repair work only.

Seafires F.XV served with the first line units of the RCN until autumn 1948. Some were returned to Nos. 803 and 883 Squadrons but for instruction and display only. Many of these aircraft were returned to the UK for overhaul and by July 1952 the last Seafires were retired from service and placed into storage, the Air Supply Depot at Dartmouth listed 18 Seafires on 30 July 1953.

Only two Seafires survived in Canada and one of these was transferred to the USA in 1994. A number of other aircraft have been exported to Canada on a private basis over the years, some are still airworthy and some are in museums (see the survivors pages for details).