Commissioned at Quebec City on May 11, 1944, she arrived at Halifax on June 5 and proceeded from there to Bermuda to work up. Returning in August, Jonqui?re was assigned to EG C-2 and after three Atlantic crossings was transferred to EG 26 at Londonderry. She was also based from time to time at Portsmouth and Plymouth, remaining in U.K. waters on anti-submarine patrol until May 27, 1945, when she sailed with ON.305, the last westbound convoy. She was paid off December 4 at Shelburne and later taken to Lauzon for conversion to a Prestonian class ocean escort, recommissioning September 20, 1954. She was finally paid off on September 12, 1966, and broken up at Victoria in 1967.
Recommissioned as a Prestonian Class on 20-Sep-54. Pendant Number 318. Finally Paid Off 23-Sep-66.