On 27 March, "Arneb" left Leyte Gulf, arrived off Okinawa on 1 April, and unloaded supplies despite enemy air attacks. She retired to Guam and was ordered to proceed on 10 April via Pearl Harbor to the United States. The ship arrived in San Pedro on 3 May and was given a 15-day availability. Then, after loading ammunition and other supplies, she sailed for Pearl Harbor on 8 June. She returned to the west coast before the end of the month and moved into drydock at the Moore Dry Dock Co. On 20 July, the cargo ship was once again headed for the Hawaiian Islands on the first of two voyages made before the end of August. During the ship's second run to Oahu, Japan capitulated, ending the fighting in the Pacific.