Lois Larson
George Bush Intercontinental Airport (IAH) has five terminals (A, B, C, D, and E) that United Airlines uses for departures and arrivals. Terminal B, which is currently under redevelopment, has 39 gates in total, with 30 of them being located in the south concourse and 9 in the north concourse. Terminal A's north concourse has 18 gates, and its south concourse serves 11 gates. Terminal C's north concourse serves 14 gates, and its south concourse serves 16 gates. Terminal D has 12 gates, and Terminal E is exclusively operated by United Airlines for domestic and international flights.
| Characteristics | Values |
|---|---|
| Airport Name | George Bush Intercontinental Airport |
| Airport Code | IAH |
| Terminals | A, B, C, D, and E |
| United Airlines Departure Terminal | Terminals A, B, C, D, and E |
| United Airlines Arrival Terminal | Terminals A, B, C, D, and E |
| Check-in | Ticket counters and kiosk stations |
| Special Assistance | Available upon request |
| Parking | Short-term and long-term parking with 24/7 monitoring |
| Transportation | Public buses, ridesharing, airport shuttles, and car rental |
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What You'll Learn
Terminal A at George Bush Intercontinental Airport has 29 gates across two concourses
Terminal A at George Bush Intercontinental Airport in Houston, Texas, has 29 gates across two concourses. The airport is named after George H.W. Bush, the 41st president of the United States and a resident of Houston. It is the second-busiest airport in Texas for international passenger traffic as of 2025.
Terminal A is primarily used by non-United domestic carriers, including American Airlines and Frontier Airlines. The north concourse serves 18 gates, numbered A1, A2, and A3A to A3H. The south concourse serves 11 gates, numbered A17 to A20 and A24 to A30. There are security checkpoints at the north and south ends of the terminal leading into the departure concourses.
The north concourse features a United Club, while the south concourse offers an Admirals Club. To connect to another terminal inside the secure area, passengers can take the escalator to level 3 and ride the Skyway. If exiting the secure area, passengers can take the subway on level LL.
Terminal A arrivals are located on level 1, where baggage claim, ground transportation, and parking are accessible. The terminal features various artworks, including "Passing Through" by Leamon Green, a 200-foot etched glass wall depicting airport travellers. Terry Allen's "Countree Music," a cast bronze tree that plays instrumental music, is also on display in the South Concourse.
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$6.89
Terminal B has 39 gates across two concourses
Terminal B at George Bush Intercontinental Airport (IAH) has 39 gates across two concourses. The terminal handles United Express domestic flights and international departures and is the single tenant of the terminal. The south concourse has 30 gates, numbered B1 to B12 and B14 to B31. The north concourse has 9 gates, numbered B76/A to B88.
Terminal B's lobby closed on January 21, 2025, and will remain closed until late 2026 for a $2.5 billion renovation. During this time, United Airlines gates B3–B31 will remain operational. Check-in, TSA security, and baggage claim for Terminal B flights will be redirected to Terminal C. Travelers who check in for their Terminal B flight via Terminal C will need to take the Skyway train to access their gate.
The Skyway train connects Terminal B to Terminals A, C, D, and E. The Skyway is only accessible when crossing the secured concourse. The Marriott Hotel is located between Terminals B and C and has a Subway Station. The A/B parking garages will remain open, but parking in Terminal C is recommended for easier access to flights.
George Bush Intercontinental Airport is one of the few US airports with a passenger train inside and outside the secure area, making terminal connections quick and easy.
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Terminal C has 30 gates across two concourses
Terminal C at George Bush Intercontinental Airport (IAH) in Houston, also known as the Lewis W. Cutrer Terminal, handles all United Airlines domestic services to and from the airport. Terminal C also caters to some international flights. It is equipped with 30 gates, numbered C1 to C45, and offers a range of passenger services, including lounges and fast-track security options. The terminal has a security checkpoint that provides access to the secure area and the north and south concourses.
The north concourse serves 14 gates, numbered C1 to C12, C14, and C15. There is a United Club lounge in the north concourse, which offers services such as newspapers, Wi-Fi, a children's area, and telephones. To get to the north concourse gates from the security checkpoint, it takes between 3 to 7 minutes.
The south concourse serves 16 gates, numbered C29 to C37 and C39 to C45. The United Club lounge in the south concourse offers snacks, drinks, Wi-Fi, newspapers, and magazines. It takes around 3 to 9 minutes to get to the south concourse gates from the security checkpoint.
Passengers can connect to another terminal inside the secure area by taking an escalator to level 3 to ride the Skyway or by walking to Terminals B, D, or E via the airside walkways. If exiting the secure area, passengers can ride the subway on level LL. Terminal C arrivals are on level 1, with baggage claim and access to ground transportation and parking.
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Terminal D has 12 gates
Terminal D at George Bush Intercontinental Airport (IAH) in Houston, also known as the Mickey Leland Terminal, is used for non-United international flights. It has 12 gates, numbered D7 to D12, D14 to D17, and D18A and D18B. The departure area is located on level 2, which also features several airline lounges, including the British Airways Lounge, Air France Lounge, and KLM Crown Lounge. Terminal D is accessible via the underground train (Subway) and the Skyway (elevated train).
Terminal D at IAH primarily handles international flights and serves as the arrival point for all international flights, except for United Airlines flights, which use Terminal E. It is located north of Terminal E, and both terminals share an arrival level for baggage claim and ground transportation. Terminal D also provides gates capable of accommodating super jumbo jets, such as the Airbus A380 and Boeing 747-8.
The terminal has undergone refurbishment as part of the IAH Terminal Redevelopment Program (ITRP), which includes the construction of the Mickey Leland International Terminal (MLIT). This project consolidates Terminal D and Terminal E into a centralized terminal with shared ticketing, departure, and arrival facilities. The ITRP is expected to enhance the airport's capacity to handle international passengers, with plans for future expansion to accommodate growing passenger numbers.
United Airlines primarily operates from Terminals A, B, C, and E at IAH. Terminal B, where United Airlines manages some of its flights, underwent a redevelopment aimed at improving passenger experience and capacity. The lobby temporarily closed in January 2025 and is expected to reopen in 2026. During this time, United Airlines gates B3–B31 remain operational, and passengers are directed to check-in at Terminal C.
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Terminal E is operated exclusively by United Airlines for domestic and international flights
Terminal E at George Bush Intercontinental Airport is exclusively operated by United Airlines for both domestic and international flights. The terminal has undergone significant upgrades, including a new ticketing lobby, faster security, and an expanded departures curb. These improvements enhance the travel experience for United Airlines passengers, who previously had to check in at Terminal C. The new terminal offers more space and efficiency, with 10 TSA security lanes and an expanded departures curb accommodating up to 3,500 vehicles per hour.
United Airlines has also reached milestones in the redevelopment of Terminal B, which temporarily closed in January 2025 and is expected to reopen in 2026. During this time, United Airlines gates B3–B31 remain operational, and passengers can use the A/B parking garages or the EcoPark off-airport parking shuttle service. The airline advises passengers flying from Terminals A, B, C, or E to check in at the Terminal C lobby and arrive 2-3 hours before their flight.
George Bush Intercontinental Airport has multiple terminals serving various airlines. Terminal A has two departure concourses in the north and south ends, with a total of 29 gates. Terminal B also has north and south departure concourses with 39 gates between them. Terminal C serves as the main international terminal, with 30 gates across its north and south concourses. Terminal D shares its arrival level with Terminal E and is the hub for several international airlines.
Terminal E's exclusive operation by United Airlines streamlines travel for the airline's customers, offering a dedicated space with improved facilities and convenience. The terminal's upgrades contribute to a more efficient and comfortable travel experience, benefiting both passengers and the airline. United Airlines' presence at George Bush Intercontinental Airport, including its redevelopment projects and exclusive use of Terminal E, showcases its commitment to enhancing the passenger experience and strengthening its operational capabilities.
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Frequently asked questions
United Airlines operates its departures from Terminals A, B, C, D, and E. The gates in these terminals include:
- Terminal A: Gates A1, A2, A3A to A3H, A17 to A20, and A24 to A30.
- Terminal B: Gates B3 to B31.
- Terminal C: Gates C1 to C12, C14, C15, C29 to C37, and C39 to C45.
- Terminal D: Gates D7 to D12, D14 to D17, D18A, and D18B.
The United Airlines check-in counter is located within the terminal, where passengers can check in for their flights and receive assistance or guidance during the self-check-in process.
United Airlines provides a range of services at George Bush Intercontinental Airport, including easy check-in, baggage updates, lounges, and dining options. They also offer supplementary assistance for mobility needs, early check-in, and medical care support if requested in advance.
George Bush Intercontinental Airport offers multiple transport options for easy access to the terminals. Passengers can take public buses, use ridesharing services, airport shuttles, or rent a car. For those driving to the airport, short-term and long-term parking options are available, with signage guiding drivers to available spots. Additionally, roadway access to Terminal B may shift starting May 14, 2025, due to utility work.
