It relieved orders for overseas service and departed Hicks Field on 23 January 1918, arriving at the Aviation Concentration Depot, Garden City, New York on the 26th. Unfortunately, a rash of scarlet fever infected many squadron personnel, and about 60 men were transferred out of the squadron to be medically quarantined. After being delayed for about a month, the 27th boarded a troop ship and departed from New York Harbor on 26 February, arriving at Liverpool, England on 5 March. A train took the squadron to a Rest Camp at Winchester the same day. The squadron waited until 17 March before crossing the English Channel and arriving in Le Havre, France on the 18th.