Circle Air Group, located at Gillespie Field (KSEE) in El Cajon, CA, is a full service FBO offering a private passenger terminal with world class concierge services and amenities, including an FAA Class IV Part 145 repair shop. We specialize in Citation, King Air, Gulfstream, Falcon, Challenger and larger aircraft. We have over 70,000 sq. ft. of hangar rental space and over 400,000 sq. ft. of concrete ramp space.