Upon returning to port in San Diego on 10 December, "Windham Bay" remained inactive until 27 December, when she resumed transporting aircraft. During this stay, Lieutenant (temporarily promoted to Commander) Theophilus Horner Moore assumed temporary command of the carrier until it arrived at Pearl Harbor. Proceeding westwards, she transported a load of aircraft to Pearl Harbor, arriving on 2 January 1945 before taking on a load of F4U Corsairs. There, Captain Maxwell Franklin Leslie took over permanent command of "Windham Bay". Leaving port on 5 January, she headed to Midway Atoll in the Hawaiian Islands, arriving on 9 January, where she unloaded her cargo. The following day, she left Midway, returning to Pearl Harbor on 13 January. She left port on 1 February, this time as a replenishment carrier, providing replacement aircraft, parts, and supplies for the frontline Fast Carrier Task Force of the Third Fleet, which at the time was preparing to provide support for the planned invasion of Iwo Jima. On her way out towards the Central Pacific, "Windham Bay" stopped at Enewetak Atoll in the Marshall Islands, before steaming for Ulithi Atoll in the Caroline Islands.