"Sigourney" next joined TG 79.2 (Attack Group Baker) which was formed at Manus Island and sortied from there on 31 December 1944 en route to the Philippine Islands. On 9 January 1945, the task group landed elements of the U.S. 6th Army in the Lingayen area of Luzon Island. On the 20th, "Sigourney" and "Saufley" (DD-465) left to screen Australian Transport Division 21 to Morotai, N.E.I. The destroyer escorted convoys between Leyte and Lingayen Gulfs until 27 February when she sailed with Task Unit 78.2.12 (TU 78.2.12) for Puerto Princesa, Palawan Island, to support the landings there on the 28th by United States Army troops. Still conducting operations in the Philippine Islands during April, "Sigourney" operated with TG 74.2 prior to, and during the army assault on the Malabang, Parang, and Cotabato areas of Mindanao on 17 April. On 6 May, the destroyer sailed from the Philippine Islands for the United States via the Marshall Islands and Pearl Harbor.