Headquarters Squadron 31 and other MAG-31 elements began moving from Roi-Namur Island, sailing for the most active front at that time-the Battle of Okinawa.

Ground personnel of MAG-31 went ashore on Okinawa on 3 April 1945 to prepare to support MAG-31, which landed from the USS Sitkoh Bay and began operations four days later.

In the midst of the Korean War, MAG-31 was reactivated on 17 March 1952, with its subordinate elements, at Marine Corps Air Station, Cherry Point, NC, but its location was shortly changed when it moved to Marine Corps Air Station Miami, Florida.

The squadron along with the group was reduced to a paper organization as it moved to Cherry Point with a small complement of personnel.

MALS-31 successfully completed the transformation of its aviation logistics support mission from F-4 Phantom IIs to the F/A-18 Hornet in 1990.