The 309th Fighter Squadron (309 FS) is part of the 56th Operations Group at Luke Air Force Base, Arizona.

It operates the General Dynamics F-16 Fighting Falcon (F-16C and F-16D variants) aircraft conducting advanced fighter training.

Initially established under Third Air Force in early 1942 as a fighter squadron at Baer Field, Indiana, flying some antisubmarine patrols in the Gulf of Mexico.

As Allied bomber forces operating from Italy began the strategic bombing of Axis petroleum and communications facilities in central Europe and the Balkans, the squadron was re-equipped with the North American P-51 Mustang to replace the shorter-ranged Spitfire.

Trained in tactical air support of ground forces, deploying to NATO bases for operational exercises.

[5] Reassigned back to TAC at Homestead AFB in 1970, as part of re-establishment of 31st TFW upon its return from duty in Southeast Asia.

Was deployed to Thailand, July 1972, engaging North Vietnamese forces in northern South Vietnam in response to the communist spring offensive.

The Gulf War build-up and the 363rd TFW at Shaw Air Force Base deploying to Saudi Arabia meant no more block 25s were available.

The squadron evacuated to Shaw Air Force Base, South Carolina, in August 1992, narrowly escaping the devastation of Hurricane Andrew.

The 20th FW at RAF Upper Heyford, England inactivated and moved its Wing and associate squadrons to Shaw AFB.

Once all of the 309th's aircraft are transferred to Holloman, the squadron is planned to become inactivate for a time in preparation for Luke's transition to the F-35 Lightning II.