The 340th Flying Training Group headquartered at Joint Base San Antonio, supports Air Education and Training Command's Specialized Undergraduate Pilot Training, Joint Primary Pilot Training, Pilot Instructor Training, Introduction to Fighter Fundamentals, Euro-NATO Joint Jet Pilot Training, Basic Military Training and the United States Air Force Academy's Airmanship Programs.

The 340th is the largest flying group in the Air Force, consisting of instructor pilots assigned to six squadrons at Vance AFB, Joint Base San Antonio , Columbus AFB, Laughlin AFB, Sheppard AFB, and USAFA. 

Instructors fly a variety of aircraft, including the T-6A Texan II, T-38 Talon, T-41A, T-51A, T-52A, TG-15/TG-16 gliders, and UV-18B Twin Otter.