George Bush Intercontinental Airport [IAH] – Ultimate Terminal Guide

Key Takeaways

• George Bush Intercontinental Airport (IAH) in Houston has 5 terminals (A, B, C, D, E), serving domestic and international flights with various amenities like dining, shopping, and lounges.
• IAH has 13 lounges, including Centurion Lounge, United Club, and United Airlines Polaris Lounge. 7 of these lounges can be accessed with a day pass and Priority Pass members can access 2 in Terminal D.
• The airport offers efficient ground transportation options, including rental cars, ride-shares, shuttles, and the Houston METRO bus, providing easy access to downtown Houston and surrounding areas.

George Bush Intercontinental Airport (IAH) served over 48 million passengers in 2024. IAH is a hub airport for United Airlines and is a focus city for Spirit Airlines.

Quick Information

Airport: George Bush Intercontinental Airport (IAH)
Terminals: 5 terminals — A, B, C, D, and E
Airport Address: 2800 N. Terminal Rd., Houston, TX 77032
Distance From Downtown Houston: Approximately 23 miles (37 km)
Website: fly2houston.com
Phone Number: 281-230-3100
Destinations Served: 118 domestic, 69 international
Flight Information: IAH departures and arrival information can be viewed online

IAH Terminal Map

Airlines Operating From IAH

IAH Airport Terminals

IAH consists of 5 terminals (A, B, C, D, and E) that are all connected by the Skyway and subway train services. Terminal A is separate from the other terminals with no access via walkways; Terminals B to E are all connected via walkways inside the secure area.

Access to the airport is through roadway systems on the east or south ends of the airport looping all terminals and parking facilities. A Marriott hotel is situated in the central area of the airport (outside of the secure area).

Terminals A, B, and C primarily operate domestic flights, but Spirit Airlines has international departures from Terminal A. Terminals D and E operate domestic and international flights.

For all terminals apart from D, arrivals are on level 1, and departures are on level 2. Terminal D utilizes Terminal E’s arrival hall.

Terminal A

Departures

Terminal A has 2 departure concourses at the north and south ends. The north concourse serves 18 gates numbered A1, A2, and A3A to A3H, and 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 has a United Club and the south concourse has an Admirals Club.

To connect to another terminal inside the secure area, passengers can take the escalator to level 3 to ride the Skyway. If exiting the secure area, then passengers can ride the subway on level LL.

Arrivals

Arrivals is on level 1 of Terminal A with baggage claim and access to ground transportation and parking.

Terminal B

Departures

Terminal B also has north and south departure concourses with 1 security checkpoint to access the secure area. The south concourse has 30 gates numbered B1 to B12 and B14 to B31.

The north concourse has 9 gates numbered B76/A, B77/A, B79/A, B80, B81/A, B83/A, B85A/B, B87, and B88.

To connect to another terminal inside the secure area, passengers can take the escalator to level 3 to ride the Skyway or walk to Terminal C from near gate B85. If exiting the secure area, passengers can ride the subway on level LL.

Note, that according to the airport’s Facebook page:

The Terminal B lobby will close on January 21, 2025, and will remain closed until late 2026. If you are a United Airlines customer flying from Terminals A, B, C, or E, please check in at the Terminal C lobby and arrive 2-3 hours before your flight. United Airlines gates B3–B31 will still be operational during this time.

The A/B parking garages will remain open, but parking in Terminal C is recommended for easier access to your flight. If any of the garages are full, the EcoPark off-airport parking shuttle service will still be available.

George Bush Intercontinental Airport via Facebook

Arrivals

Arrivals is on level 1 of Terminal B with baggage claim and access to ground transportation and parking.

Terminal C

Departures

Terminal C 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, and the south concourse serves 16 gates numbered C29 to C37 and C39 to C45.

There’s a United Club lounge in both the north and south concourses along with a good range of shops and restaurants.

To connect to another terminal inside the secure area, passengers can take the escalator to level 3 to ride the Skyway or walk to Terminals B, D, or E via the airside walkways. If exiting the secure area, passengers can ride the subway on level LL.

Arrivals

Arrivals is on level 1 of Terminal C with baggage claim and access to ground transportation and parking.

Terminal D

Departures (Ticketing)

Terminal D is the main international terminal serving flights all over the world with airlines such as Singapore Airlines, Lufthansa, and Qatar Airways.

Level 1 is the ticketing level that has 1 security checkpoint leading through to escalators up to the departures level.

Departures (Gates)

Terminal D’s departure area is on level 2 with 12 gates numbered D7 to D12, D14 to D17, D18A, and D18B. On this level, there is the British Airways Lounge, Air France Lounge, Centurion Lounge, KLM Crown Lounge, Executive Club, and USO Lounge.

There is a small selection of shops and restaurants in Terminal D, including duty-free shopping.

Arrivals

Terminal D shares its arrival level with Terminal E for baggage claim and ground transportation.

Passengers arriving on international flights must clear Immigration and Customs and will end up outside of the secure area in Terminal D/E arrivals. To connect to another terminal, you can ride the subway train on level LL.

Terminal E

Departures

Terminal E is operated exclusively by United Airlines for domestic and international flights. Ticketing/check-in is on level 1 along with a security checkpoint leading through to the departure areas.

In the departure concourse, there are 23 gates numbered E1 to E12 and E14 to E24.

There is a United Club and United Polaris Lounge in the center of the concourse along with a range of restaurants and shops (including Duty-Free).

Update: Due to the construction of a new international terminal, passengers departing from Terminal E must now check-in and use the TSA security checkpoints at Terminals B, C, or D. United passengers will be provided with their specific terminal check-in location.

Arrivals

Arrivals is on level 1 and is used for Terminal D and E arrivals. For international flights, Immigration and Customs is on this level leading through to the central arrivals area for onward ground transportation.

Inter-terminal Transport

IAH is one of the few U.S. airports that has a passenger train inside and outside of the secure area, making terminal connections quick and easy.

Walking

Once inside the secure area, passengers can walk between the 2 concourses at Terminal A without having to re-clear security. For any further connections from Terminal A, passengers must ride the Skyway train.

Once inside the secure area of Terminals B, C, D, or E, passengers can walk between these terminals without having to re-clear security. Passengers looking to connect outside the secure area of these terminals must ride the subway train.

Skyway Automated People Mover (Inside Security)

The Skyway is an above-ground train that runs between all terminals inside the secure area. Trains depart every 2 minutes with a total journey time of 4 minutes 15 seconds from Terminal A to Terminal D/E station.

Subway Train (Outside of Security)

The subway is a below-ground train that runs the length of the airport outside of the secure area. Stations are positioned in every terminal, as well as at the Marriott hotel. Trains operate every 3 minutes from 3:30 a.m. to 12:30 a.m.

Security and Customs at IAH

IAH has the following security checkpoints:

If arriving on an international flight, passengers or friends and family waiting for passenger collection can view the international IAH Immigration and Customs processing times on the airport website.

TSA PreCheck

IAH has dedicated TSA PreCheck lanes at the below checkpoints with these hours of operation:

IAH has a TSA PreCheck Enrollment Center located in the baggage claim of Terminal C operating from 7:30 a.m. to 11:30 a.m. and 12 p.m. to 4 p.m. Monday to Friday.

Hot Tip: TSA PreCheck can be especially helpful if you regularly fly out of IAH as it ranks in the 5 U.S. airports with the worst average security wait times. 

Global Entry

IAH has Global Entry kiosks for preapproved, low-risk travelers arriving in the U.S. All applicants are required to attend an interview that they can arrange at 1 of 2 Enrollment Centers at IAH:

• Terminal E arrivals (outside of the secure area) is open Monday to Friday from 8 a.m. to 4 p.m.
• Terminal E near Ruby’s Diner (inside the secure area) is open Monday to Friday from 9 a.m. to 3:30 p.m.

IAH also participates in Enrollment on Arrival, so conditionally approved passengers may fulfill the interview portion of their application on arrival at IAH with a CBP agent.

Hot Tip: For more information, check out these frequently asked questions about Global Entry along with our helpful advice. 

Mobile Passport

Passengers can use Mobile Passport Control when arriving at IAH from an international flight.

Just download the free app, answer the questions about your trip, and present your electronic receipt to a CBP agent.

CLEAR

There are dedicated CLEAR security program lanes at IAH available for eligible passengers. These are located at:

• Terminal A North and South checkpoints open Sunday to Friday from 4 a.m. to 8 p.m. and Saturday from 4 a.m. to 8 p.m.
• Terminal B checkpoint is open Sunday to Friday from 4 a.m. to 8 p.m. and Saturday from 4 a.m. to 7 p.m.
• Terminal C checkpoint is open Sunday to Friday from 4 a.m. to 8 p.m. and Saturday from 4 a.m. to 7 p.m.

IAH Airport Lounges

IAH has 13 lounges, with 7 of those lounges available for passengers to purchase day passes. The remaining lounges are for eligible passengers or credit cardholders, excluding the USO Lounge which is reserved exclusively for active military. If you’re active military, see our post on the best credit cards for military members as many issuers waive annual fees and you can use lounge access benefits offered by those cards.

* Hours are subject to change without notice. Lounge access may be restricted at times due to capacity.
** Day Pass for any passenger. Lounges marked as N/A only allow entry for eligible passengers in their premium cabins, frequent flyer programs, or participating credit card programs.

Hot Tip: Want access to lounges without paying the day-pass fee? Here are the best credit cards for complimentary lounge access to avoid entry fees to airport lounges.

Priority Pass Access

Subject to availability, Priority Pass holders can access the following lounges in Terminal D:

• Air France Lounge
• KLM Crown Lounge

Eligible Priority Pass holders can use their membership to receive a discount/credit at:

• Cadillac Mexican Kitchen & Tequila Bar: Open daily from 6 a.m. to 10 p.m., located in Terminal A
• Landry’s Seafood: Open daily from 6 a.m. to 10 p.m., located in Terminal C
• Minute Suites: Open 24/7 (Priority Pass members receive a 1-hour stay) located in Terminal C

Find out more about Priority Pass memberships as well as the best cards for Priority Pass access.

Airport Dining and Drinks at IAH

There are over 100 restaurants, cafes, and food stations at IAH. Most are located inside the secure area, with only 3 options pre-security in Terminals A, B, and in the Marriott.

Plan ahead and view the range of IAH restaurants available on the airport website.

IAH Airport Wi-Fi and Charging Stations

Free Wi-Fi is available in each terminal and the parking garages. To connect, select “Free Airport WIFI” from the available connections, agree to the terms and conditions, and click “Connect.”

For any technical issues, you can contact the Wi-Fi help desk at 844-310-990.

Charging Stations: Charging stations are available in each terminal with the option of rapid charging for a small fee.

Hot Tip: To ensure you’re connected at all times, check out the best mobile Wi-Fi hotspots.

IAH Airport Lost and Found

IAH advises passengers to contact the following departments, depending on where an item was lost:

• On an Airplane: Contact the applicable airline
• Rental Car Center: Call 281-233-1013 or email david.davenport@firstgroup.com
• U.S. Customs and Border Protection: Call 281-230-4672
• TSA: Call 281-443-5301 or email iahlostandfound@tsa.dhs.gov
• Other Public Areas: Contact the lost and found office at 833-253-2940 or visit the office on the arrivals level of Terminal E open Monday to Friday from 8 a.m. to 5 p.m. Passengers can report a lost item using this form.

Additional Airport Information

Information Services

IAH has 4 information booths located in the baggage claim of Terminal A and C, in the D/E international arrivals hall, and just past the security checkpoint in Terminal E. These are open daily from 8 a.m. to 6 p.m.

Airport volunteers can be found throughout the airport and are identifiable by their bright red tops.

Interactive information kiosks are also positioned throughout the airport.

Children’s Play Areas

There are no children’s play areas at IAH. Keep the kids entertained with regular live music held in Terminals A or D, ride the Skytrain, or visit one of the airport’s art exhibits.

Given that there isn’t a dedicated children’s play area, IAH doesn’t rank as one of the most kid-friendly U.S. airports.

Baby Facilities

IAH has private nursing rooms throughout the airport, located at:

• Terminal A: Near gates A1 and A17
• Terminal B: Near gate B21
• Terminal C: Near gates C4 and C34
• Terminal D: Near gate D16
• Terminal E: Near gate E11

A nursery with a crib and rocking chair is available in Terminal D opposite gates D8 and D9.

Unisex family restrooms are available at:

• Terminal A: In the northwest, southwest, and southeast corners of the check-in level, near baggage claim, and near gate A7
• Terminal B: Near gates B1 and B85
• Terminal E: Near gate E2, E11, E14, and E15

Pet Relief Areas

While IAH didn’t make it into our top pet-friendly U.S. airports, IAH does offer pet relief areas that can be found at the following locations:

• Terminal A: Near gate A12
• Terminal B: Near gate B1
• Terminal C: Across from gate C2
• Terminal D: Opposite gate D12
• Terminal E: Across from gate E12

Duty-Free

IAH has several duty-free shops, located in Terminals A, B, D, and E.

Smoking Areas

Designated smoking areas are located outside of the airport and must be at least 25 feet from the exits:

• Terminal A at the north side on level 1, outside door A-113
• Terminal A at the east side on level 2, north and south of the entrance
• Terminal B at the south side on level 1, near the taxi pick-up point
• Terminal B at the east side on level 2, north and south of the entrance
• Terminal C at the south side on level 1, outside door C-105
• Terminal C at the east side on level 2, north and south of the entrance
• Terminal D at the west and east of the entrance on level 1
• Terminal E, northwest of the terminal exit on level 1 outside door E-101

Prayer

IAH has 2 interfaith chapels located in Terminal C near gates C29 to C33 and Terminal D near gate D8. Both are open 24/7.

Money

ATMs can be found at:

• Terminal A: Near gate A7 and A17
• Terminal B: Near gate B1 and near the security checkpoint
• Terminal C: Near gate C1, C3, C6, C14, and C42
• Terminal D: Near gate D12
• Terminal E: Near gate E1, E12, and international arrivals
• Rental car facility

Currency exchange centers can be found at:

• Terminal C: Near gate C1 and C43
• Terminal B: Near gate B1
• Terminal D: Near gate D12
• Terminal E: Near the security checkpoint, in international arrivals, and near gates E12 and E24

Luggage Storage

There are no luggage storage facilities at IAH.

Important IAH Phone Numbers

General Inquiries: 281-230-3100

Lost and Found: 281-230-3299

Parking: 281-233-1730

Travel To and From IAH

Transport Options

Bus

METRO bus 102 runs from IAH through to the downtown Houston METRO station with the journey taking 50 to 90 minutes. Buses pick up and drop off from the south side of Terminal C on the baggage claim level. The fee for 1 ride is $1.25.

Shuttle

The airport recommends a couple of shuttle providers. Shuttles depart from the south side of Terminal C, near door C-105.

Hotel shuttles pick up and drop off at Terminal A, B, and C south side and Terminal E west side.

Taxi

Taxis are available from outside baggage claim at Terminals A, B, C, and E. For all destinations within the Houston city limits, the flat zone rate or meter rate is charged (whichever is cheaper). Approximate rates are:

• Downtown: $57
• Galleria/Medical Center area: $65
• Hobby Airport: $78
• Space Center Houston: $102
• NRG Park: $70

Ride Services

Alto, GetMe, GreenLight, Lyft, Uber, and Wingz are all approved ride apps that operate at IAH. Drop off for all terminals is on the departure level, and pick up is permitted at:

• Terminal A south side, door A-114
• Terminal B south side, door B-103
• Terminal C south side, door C-106
• Terminal E west side, door E-103B

Driving to IAH

Arriving From Downtown Houston

Take I-69 North and use the right 2 lanes to take the Beltway W./Sam Houston Parkway exit. Merge onto Beltway W./N. Sam Houston Parkway and then take the exit towards JFK Boulevard for access to the airport.

Arriving From Austin (Northwest)

Take US-290 East (toll road), then use the right lane to merge onto TX-36 S/US-290 east via the slip road to Houston/Bellville. Use the right 2 lanes to merge onto Sam Houston Tollway North (toll road) and then take the exit towards Bush Intercontinental Airport.

IAH Airport Parking Information

Official Airport Parking

Short-term Parking

Terminal parking is available at Terminals A, B, and C, while the Terminal D/E garage is permanently closed.

Valet Parking

Valet parking is available from the ground level of the Terminal A and B parking garages and on level 4 of the Terminal C garage.

The daily rates are $28 for the Terminal A and B parking garages and $30 for the Terminal C garage.

Long-term Parking

There are 2 ecopark parking lots at IAH that offer cheaper rates than terminal parking. These are located further away from the terminals and require passengers to ride a shuttle bus that picks up and drops off on level 1 outside of baggage claim at each terminal. Shuttles operate daily from 5:30 a.m. and 12 a.m.

Update: Due to construction, the ecopark shuttle no longer accesses Terminal E; customers must go to Terminal C or D to access an ecopark shuttle.

ecopark (JFK Boulevard)

ecopark2 (Will Clayton Parkway)

Hot Tip: You can guarantee a space in the terminal lots by pre-booking parking online. If you park regularly in the ecopark parking lots, then you can join the Parking Plus frequent parking program to earn award points toward free parking. 

Pick-up or Drop-off Parking

IAH has 2 cell phone waiting lots that family and friends can use to park for free until the passenger is ready for curbside pick up. These are located at:

• 16834 John F. Kennedy Boulevard, Houston, TX 77032
• 6135 Will Clayton Parkway, Humble, TX 77338 (covered)

Off-site and Hotel Parking

Off-site lots such as hotels can offer cheaper parking than what is available at the airport.

Prices start at $5 per day when booking on airportparkingreservations.com, which is a handy site for comparing prices and distances from the airport.

Parking for Passengers With Disabilities

Parking for passengers with disabilities is available on each level of all official airport parking lots, including ecopark and ecopark2. Wheelchair-accessible shuttle buses are also available to transport passengers to/from the non-terminal parking lots.

Parking Contact Number

General parking inquiries: 281-233-1730

Car Rental at IAH Airport

The rental car center is located on airport property, around 5 minutes from the terminals. Blue and white shuttle buses depart every 5 to 10 minutes from outside of Terminal A, B, C, and D arrivals, between 7 a.m. and 11 p.m. If arriving at Terminals D or E after 9 p.m., passengers will need to ride the car rental shuttle from Terminal C.

Hot Tip: Want to avoid paying for expensive insurance through the rental company? Find out which credit cards include car rental insurance as a benefit.

IAH Airport Hotels

The Houston Airport Marriott at George Bush Intercontinental is a 4-star hotel situated on airport property. There is also a range of 2- to 4-star hotels from 2.2+ miles away, with most offering an airport shuttle service.

IAH Airport Hotels – Sorted by Distance from IAH

Top 3 Hotel Stays Using Points

The Sheraton North Houston at George Bush Intercontinental Airport offers guests both comfort and convenience. Guests have access to the airport shuttle, outdoor pool, and fitness center. Those guests who have Platinum Elite status or higher with the Marriott Bonvoy program will receive a complimentary hot breakfast each morning.

The Holiday Inn Houston Intercontinental offers guests access to a fitness center, basketball and tennis courts, a sand volleyball court, and an outdoor pool. The hotel is perfect for traveling families as up to 4 kids ages 11 and under eat free any time of the day in any on-site restaurant (terms and conditions apply). When it’s time to head home you can load everyone up into the free shuttle back to the airport.

Stay rejuvenated at the DoubleTree Houston Intercontinental Airport hotel with a fitness room equipped with cardio machines and weights, an outdoor pool, a hot tub, quiet gardens, and a complimentary airport shuttle. Hilton Honors Gold and Diamond members can enjoy a hot breakfast each morning of their stay.

Hot Tip: If you’re looking to top off your points to stay at any of these options, see our guides on the best ways to earn more Hilton Honors, Marriott Bonvoy, or IHG One Rewards points.

Final Thoughts

George Bush Intercontinental Airport is the busiest airport in Houston and the second largest in Texas after Dallas Fort Worth International Airport (DFW).

It’s a well-laid-out airport, with easy connections between terminals due to the Skyway and subway trains that run inside and outside of the secure area. Passengers also have the option of walking between most terminals inside the secure area if connecting from a domestic flight.

The airport began construction in Terminal E in August 2021 as part of the IAH Terminal Redevelopment Program. At its completion, the new international terminal will have a modernized ticketing and arrivals hall and additional international gates.