"Swenning" participated in antisubmarine training off Bermuda with "Bogue" and CortDiv 51 from 23 October to 21 November and from 26 December 1944 to 16 January 1945. The escort spent February conducting antisubmarine and gunnery exercises at Casco Bay and March training submarines at New London. She began her last Atlantic war patrol on 16 April when CortDiv 51 joined "Bogue" to form TG 22.3 at Melville, Rhode Island. Until the end of hostilities with Germany, the group was a unit of a north-south submarine barrier patrol as part of Operation Teardrop. The barrier consisted of 24 ships of TG's 22.3, 22.4, 22.8 and Task Unit 22.7.1. "Swenning" had no significant role in the ensuing action, but the barrier patrols sank five submarines at the expense of one destroyer escort sunk by a torpedo. On 8 May, news of Germany's capitulation reached TG 22.3 which proceeded to New York the next day. The ships arrived there on 11 May, and the task group was dissolved. "Swenning" steamed to Boston, Massachusetts, and entered the navy yard for an overhaul in preparation for duty in the Pacific. While there, her torpedo tubes were removed and replaced by twin 40 millimeter antiaircraft guns.