Wikipedia:
The first aircraft were delivered to the Royal Air Force on June 1, 1944 to No. 616 Squadron RAF.... No. 616's Meteor Mk. I's saw action for the first time on July 27, 1944 operating against flying bombs, ultimately destroying 14 V-1 flying bombs. The Meteor never saw aerial combat against the Luftwaffe despite flying limited missions over Germany from January 1945, using the Mk. III variant from bases in Belgium.......
RAAF service during the Korean War
The Royal Australian Air Force acquired 113 Meteors between 1946 and 1952. F.8 Meteors saw extensive service during the Korean War with No. 77 Squadron RAAF. The squadron, which had previously flown P-51 Mustangs in Korea, first flew Meteors on July 30, 1951 and had some success in jet-versus-jet combat, against MiG-15 pilots, shooting down five of the newer and generally superior MiGs in the period of September to November. However, four RAAF Meteors were lost on December 1, 1951 in a dogfight between 12 aircraft from 77 Squadron and 40 MiGs. As a result, 77 Squadron was relegated to ground attack duties, a role in which it performed well. While at least 29 Meteors were lost as a direct result of enemy action in Korea, the vast majority of these were shot down by anti-aircraft fire while serving in a ground attack capacity.
Meteor Operations in Korea