The 19th Airlift Squadron was constituted as the 19th Transport Squadron on 22 November 1940. Activated on 1 January 1941 at Hickam Field, Hawaii, the squadron was assigned to Hawaiian Air Force, flying the Douglas C-33. During the course of World War II, the squadron would conduct aerial transportation within the Hawaiian Islands and to forward bases in the Pacific. In May 1942, the squadron was moved over to the adjoining John Rogers Airport due to space issues at Hickam. The squadron was re-designated the 19th Troop Carrier Squadron on 5 July 1942. That same year, the unit transitioned to the C-53 aircraft. The following year, it converted to the C-57 and C-47. In 1944, it added the C-45 to its inventory. On 15 August, the 19th became assigned to VI Air Service Area Command and the following year, on 15 December 1945, to AAF, Middle Pacific.
Cold War
With the end of the war, the 19th continued its intra-theater operations in the Hawaiian Islands. It was reassigned 4-engined C-54 Skymasters and also C-46 Commandos. In 1948 it was transferred to Bergstom AFB in Texas and assigned to Tactical Air Command. However, the squadron deployed to Wiesbaden Air Base in Germany in June 1948 in response to the urgent need for C-54 transports due to the Berlin Airlift. There it flew constant missions in the Berlin Air Corridor to airports in West Berlin and back to Wiesbaden. The 19th remained in Occupied Germany until it was inactivated on 26 August 1948, its aircraft assigned to other units in Occupied Germany. Re-designated as the 19th Troop Carrier Squadron, Medium, on 23 May 1952, the squadron was reactivated on 10 June 1952 at Brady AB, Japan. The squadron flew with the C-46 aircraft under the 315th Troop Carrier Group. Its mission at Brady was to provide passenger transportation between South Korea, Japan and other US bases in the western Pacific. The squadron inactivated on 18 January 1955 due to budget reductions.
Modern era
The last generation of the squadron was activated as the 1403d Military Airlift Squadron, which was designated, and activated, on 1 August 1984 at Yokota Air Base in Japan. The squadron had been attached to 316th Tactical Airlift Group, and then the 374th Tactical Airlift Wing starting on 1 October 1989. Its mission was to provide intra-theater airlift for high-ranking PACAF and civilian officials and small mission–essential equipment, flying C-12 Huron twin-engine prop planes, and in 1985, upgrading to the C-21 Learjet. The squadron was designated the 19th Airlift Squadron on 1 April 1992 and assigned to the 316th Airlift Support Group, before being reassigned on 1 June 1992 to the 374th Operations Groups. The 19th AS transferred to the 60th Operations Group, Travis AFB, California on 1 November 1993, in a name-only re-designation of the 7th Airlift Squadron. Its VIP aircraft at Yokota were transferred back to the United States. In turn, the 19th took over the C-141B Starlifters and mission of the 7th as part of the re-designation, as part of an Air Force initiative to retain low-numbered units on active duty. With a final flight and inactivation ceremony on 2 Aug 1996, the squadron was inactivated on 30 September 1996 as part of the retirement of the C-141 fleet.
Lineage
;19th Airlift Squadron
Constituted 'as the 19th Transport Squadron on 22 November 1940
Redesignated: 19th Troop Carrier Squadron, Medium on 23 May 1952
Consolidated with the 1403d Military Airlift Squadron as the 19th Airlift Squadron on 1 April 1992
; 1403d Military Airlift Squadron
Designated as the 1403d Military Airlift Squadron and activated on 1 August 1984
Consolidated with the 19th Troop Carrier Squadron as the 19th Airlift Squadron on 1 April 1992
