Leaving Iwo Jima on 5 March, "Bull" headed for Ulithi to make ready for the next major American amphibious assault: the invasion of Okinawa. She arrived off that island on 26 March and, but for short runs to Saipan for upkeep, remained there until after all organized Japanese resistance had been wiped out some three months later. Her principal duties during the campaign were to support beach reconnaissance and to screen other Allied ships. While off Okinawa, she endured countless air raids, but no bullet or bomb ever touched her. On 4 June, while returning from Saipan, "Bull" encountered the fringes of a typhoon, which prompted the convoy to reverse course. Despite the course change, the ships in the formation experienced 70 knot (130 km/h) winds and mountainous seas. The storm subsided by mid afternoon; and, with no ships reporting any damage, the group resumed its course to Okinawa and arrived there on 8 June. "Bull" spent the rest of June on a screening station near Okinawa before sailing for Guam on 1 July. Continuing thence via Eniwetok and Pearl Harbor, the fast transport reached San Pedro, California, where she conducted voyage repairs, refresher training, and UDT rehearsals for the invasion of the Japan.