In April 1945 the Mk II and III Sunderlands were replaced with Mk V, which had more reliable Pratt & Whitney Twin Wasp. At the End of World War II in Europe in May 1945, the 330 Sqn had eleven operational Sunderlands. While the fighter squadrons were without work, the amount of work for the 330 and 333 Sqn intensified. There was a massive need for air transport, both from the United Kingdom to Norway and within Norway. Both squadrons were transferred to Norway in June, with the 330 Sqn being based at the water aerodrome at Sola Air Station. These were used on a daily coastal route from there to Bergen Airport, Sandviken and Trondheim, often onwards to Tromsø Airport, Skattøra. Both squadrons were soon operating more as airlines than as military units.