"Boston" also supported the assaults on the Palaus and Western Carolines between 30 March and 1 April, and operations at Hollandia (currently known as Jayapura) and Western New Guinea on 21 – 24 April. The ship participated in the attack on Truk, including bombardment of Satawan Island between 29 April – 1 May. "Boston" supported the invasion of Saipan between 11 and 24 June. She also took part in several raids on the Bonin Islands in June and July and supported the carrier task forces during the Battle of the Philippine Sea on 19 June. "Boston" towed the crippled "Houston" after it was torpedoed by the Japanese.