After brief upkeep at Eniwetok, "Miller" got underway to rendezvous with the remainder of the task force for further strikes on Iwo Jima and Chichi Jima (3–4 July) and Palau, Ulithi, and Yap (23–27 July). On 30 August the force sailed to support the landings in the Palaus by conducting raids against Palau, Mindanao, Leyte, Luzon, and Samar (7–24 September). In October, operating from Ulithi, the task force prepared for the return to the Philippines with strikes on enemy installations in shipping in the Ryūkyūs, on Taiwan, and in the South China Sea. On the 20th, it commenced support of amphibious operations on Leyte and Samar. Five days later "Miller" joined the screen of Task Group 34.5 (TG 34.5), then operating with TG 38.2. The two groups then sailed to assist TF 77 which had engaged an enemy force in Surigao Strait in an opening phase of the epic Battle of Leyte Gulf.