On the 29th, "White Marsh" departed Pearl Harbor in company with Task Group 52.15 (TG 52.15), bound for Saipan. After a stop at Eniwetok en route, she and her task unit arrived in the Marianas before dawn of 15 June. Later that morning, "White Marsh" and her companion ships disembarked troops of the 2nd and 4th Marine Divisions and the landing went forward. Following the initial assault on Saipan, the dock landing ship settled into a routine of repair duties for damaged landing craft for a week before departing the Marianas to return to the United States.