Early in November 1944, Barataria stood out of Bremerton, bound for San Francisco, California, where she took on stores, aircraft maintenance spares, aviation gasoline, and supplies and embarked 39 officers as passengers.

She spent the remainder of December 1944 and the first few days of January 1945 anchored off Leyte in the San Juanico Strait tending Patrol Bomber Squadron 25 (VPB-25), consisting of 15 Martin PBM-3D Mariner flying boats, whose mission was to conduct daylight searches north and east of Luzon.

Two aircraft rescue boats (ARBs) had been assigned to Barataria, but one of these began taking on water and had to be abandoned and sunk on 8 January 1945.

That afternoon, the planes of Patrol Bomber Squadron 20 (VPB-20) arrived and moored, and Baritaria carried out routine fueling operations for the remainder of the day.

On the morning of 10 January 1945, Barataria surveyed the waters off the town of Damortis, south of Aringay Point, and found them free of swells.

When Japanese mortar fire began falling around the ship at 16:23 hours, Barataria slipped her anchor chain and retired out of range.

While at Sangley Point, Barataria serviced the planes of VPB 25, previously tended by the seaplane tender USS San Carlos (AVP-51).

The highlight of her service there began when she got underway at 11:16 hours on 26 March 1945 to rescue a VPB-28 plane downed in the South China Sea about 200 nautical miles (370 km) off the coast of Luzon.

Instead, the destroyer USS Young (DD-580), which ship arrived on the scene shortly after midnight to escort Barataria, sank the plane with gunfire after all classified gear had been removed from it.

She surveyed Mactan Island for the establishment of a seaplane ramp and beach facilities, and laid out take off and landing areas in the waters offshore.

[1] However, the action was not all one-sided for, at 05:40 hours on 14 April 1945, Barataria came under fire from Japanese 40- and 90-millimeter guns on Cebu Beach, directly opposite Mactan Island.

For the remainder of May 1945 and all of June 1945, she tended the PBM-5D Mariners of VPB-28 as they carried out "Dumbo" missions covering the Army's Fifth Air Force bombing strikes on Formosa.

During May 1945, she also serviced the Royal Australian Air Force 76th Wing Detachment's PBY Catalinas as an "intermediary landing point" in their minelaying operations off the China coast.

Early in June 1945, Barataria provided air-sea rescue coverage for the movement of Marine Air Group 14 from Clark Field, Luzon, to Okinawa.

She next provided services for VPB-28 as it flew antisubmarine patrols out of Manila Bay, covering the waters adjacent to northern Luzon, for the remainder of World War II.

On 16 September 1945, another typhoon prompted Barataria to get underway to ride out the storm, getting all flyable planes aloft and off the rough seas.

Barnegat-class ships were very reliable and seaworthy and had good habitability, and the United States Coast Guard viewed them as ideal for ocean station duty, in which they would perform weather reporting and search and rescue tasks, once they were modified by having a balloon shelter added aft and having oceanographic equipment, an oceanographic winch, and a hydrographic winch installed.

The squadron's other Vietnam War duties included naval gun fire support for ground forces, resupplying Coast Guard and Navy patrol boats and search-and-rescue operations.

The cutters departed Pearl Harbor on 26 April 1967 and reported to Commander, United States Seventh Fleet, for Market Time duty on 4 May 1967.

During her Vietnam War tour, Barataria was underway 83 percent of the time and cruised over 67,000 nautical miles (124,000 km) without a major mechanical or electrical failure.

Barataria returned to the United States on 12 January 1968 and was reassigned to San Francisco, California, which was her home port for the remainder of her Coast Guard career.

From 21 May 1969 to 27 May 1969, Barataria rescued the crew of and stood by the Peruvian merchant ship Yavari 960 nautical miles (1,780 km) southwest of San Francisco.