Albuquerque International Sunport, ABQ, has a single three-level terminal with Concourses A and B and commuter gates Concourse E, with 25 boarding gates.
Concourse A consists of 13 gates: A1-A12 and A14. Concourse B includes nine boarding gates: B1, and B3-B10 (during the security hall expansion gate B2 was removed in 2005). Concourse E: E1 & E2. Concourse C was originally known as the west wing of the terminal, including four boarding gates (Gates: 11, 12, 14, and 15). Boarding gate 11 was closed in 1989, during the expansion of the terminal. Concerning the rest of the three gates, they were renumbered to Gates: C1-C3. TWA Airlines continued to use these gates for a few more years until gates C2-C3 were demolished. After that, TWA moved to concourse B, and the hall area of gate C1 has been modified into an office space. Gate C1 has a lower level, which houses U. S. Customs and Border Protection and is used for occasional international arriving routes. Concourse D was a ground-level commuter aircraft used by Great Plains Airlines. In 2004 it was closed due to insolvency. In 2019, concourse E, which was commuter airline gates, was renamed to concourse C and then later, concourse C international arrivals gates, was renamed to concourse D.
The 1stlevel of the main passenger terminal is used for the Arrivals level, which holds the baggage claims 1 to 8 belts and baggage claim offices. In the center of the standard one, there is the escalator heading to the 2ndfloor, a kiosk, an information center, a chapel, and a rental car courtesy phone. This level has a connection to the parking garage.
The 2ndlevel is called the check-in level, housing Federal Inspection, Police, Customs and Border Control, the Communications Center, Sandia Vista Room, Lost and Found, ATM, and SmarteCarte.
The 3rdlevel is used for the Departures and houses food and drink establishments, TSA checkpoints, ATM, shops, Aviation Dept. Offices and a passenger greeting area. The 3rdlevel has the security checkpoint and a connector to Concourses A and B with food courts.