McGhee Tyson Airport covers at an elevation of . It has two parallel runways: 5L/23R is 10,000 by 150 feet (3,048 x 46 m) concrete and 5R/23L is 9,000 by 150 feet (2,743 x 46 m) asphalt. The
fixed-base operator (FBO) at TYS is
Signature Aviation, the parent company of Signature Flight Support. In July 2022 Signature Aviation announced the acquisition of the TAC Air division of TAC (Truman Arnold Companies) and the FBO was rebranded to join the Signature network. Originally, Tac Air first moved into TYS on April 1, 2005, when it purchased Knox-Air, which had operated in TYS since 1974. Then a month later, on May 5, 2005, TAC Air purchased the only remaining FBO, Cherokee Aviation, which had been in operation since 1954. TAC Air combined these two FBOs under their own name, and they were the sole supplier of aviation fuel for commercial, corporate and general aviation aircraft as well as leased hangar space at the airport. TYS is home to a maintenance base for
Endeavor Air, crew base for
Allegiant Air, and delivery, maintenance and training centers for
Cirrus Aircraft.
Terminal McGhee Tyson Airport has two levels. The top level is accessed via the curbside drop off and the parking garage. The top level has ticket counters, security, gates, restaurants and shops. It is designed with a
Smoky Mountain theme, complete with faux waterfalls and wood carvings of
bears. The bottom level is used for car rental counters, three baggage claims, airline offices, and airport offices. There are 12 gates. On a regular day Gates 2 & 4 are used by Allegiant Air, Gate 6 is a common use gate, Gates 8, 10, & 12 are used by American, Gates 1, 3 & 5 are used by Delta, and Gates 7, 9, & 11 are used by United. Gate assignments can be subject to change. In July 2023, the airport announced the planning of a six-gate expansion to the terminal, with a target completion date of 2028, to meet the growing needs of the region. In January 2024, airport officials announced they would be closing part of the airport's long-term parking lot to begin a project to build a new six story garage that would add 3,500 parking spots. ==Airlines and destinations==