Ascania was returned to Cunard and refitted, resuming passenger service on 20 December 1947 on the Liverpool to Halifax route. She underwent a major refit in 1949, to 14,440 gross register tons and with accommodation for 200 1st and 500 tourist class passengers, and returned to service on 21 April 1950 on the Liverpool-Quebec-Montreal route. Ascania was again taken up as a troopship for the Suez landings and finally retired in December 1956.
