George Bush Intercontinental Airport Guide (IAH) – Houston

Airport Overview

George Bush Intercontinental Airport (IAH) is the primary international gateway for the greater Houston metropolitan area and the largest hub for United Airlines, serving approximately 40 million passengers annually. Located 23 miles north of downtown Houston in Harris County, IAH handles extensive international traffic to Latin America, Europe, Asia, and the Middle East. Houston's position as a global energy capital means IAH serves a substantial corporate travel market alongside leisure passengers.

The airport is named after former U.S. President George H.W. Bush, who was a longtime Houston resident. IAH is one of United Airlines' most important global hubs, serving as the primary connection point for United's extensive Latin American network and the airline's Houston-based transpacific and transatlantic routes. The airport spans over 10,000 acres and features five terminals connected by the Intercontinental Terminal Ground Transit System (IAH Interterminal Train).

Terminals

IAH operates five terminals (A, B, C, D, and E) in a unique configuration — Terminals A, B, C, and D form a connected complex, while Terminal E is separate.

• Terminal A: United Airlines domestic flights; Gates A1–A30
• Terminal B: United Airlines domestic flights and some international; Gates B1–B89
• Terminal C: United Airlines hub operations including major international routes (Europe, Asia, Middle East); star Alliance partners including Lufthansa, Air France, KLM, ANA; Gates C1–C30
• Terminal D: International terminal; all non-United international carriers including British Airways, Aeromexico, Copa Airlines, LATAM, Avianca; Gates D1–D20
• Terminal E: Southwest Airlines (all operations), Frontier Airlines, Spirit Airlines, regional carriers; Gates E1–E27

WiFi Availability

IAH provides complimentary WiFi throughout all five terminals under the network name "IAH Free WiFi." Connect by selecting the network and accepting the terms of service — no password, registration, or time limits required. Connection speeds are generally adequate for browsing and email. Premium Boingo Wireless plans are available for faster dedicated speeds. The recently renovated sections of Terminal B and C offer the most consistent coverage.

Transport to City Center

METRO Bus (Intercontinental Express)

Houston's Metropolitan Transit Authority (METRO) Route 102 (IAH Intercontinental Express) provides express bus service between the airport and downtown Houston. Buses depart from Terminal C's ground transportation center. The journey takes approximately 55–75 minutes and costs $3.50 for an express ticket. Service runs from early morning to late evening on weekdays, with limited weekend service. METRO Rail (light rail) does not currently reach IAH, though an extension has been discussed.

Bus Services and Shared Shuttles

GO Airport Shuttle, Execucar, and other shared-ride van services provide door-to-door service throughout the Houston metro area. Rates vary by destination; shared rides to the Galleria area typically cost $25–$35 per person. Private van and limo services are also widely available from the Ground Transportation Centers at each terminal.

Taxi and Rideshare

Taxis are available from the designated staging areas at each terminal. A taxi to downtown Houston costs approximately $55–$75 and takes 35–50 minutes depending on traffic on I-45 or Hardy Toll Road. Rideshare (Uber, Lyft) typically runs $35–$55 to downtown. Houston is very spread out, and the lack of direct rail service to IAH makes traffic conditions the primary determinant of road travel time.

Airport Lounges

IAH's lounge ecosystem is centered on United Airlines' comprehensive club network, reflecting the airport's status as United's largest hub by operations.

• United Club – Terminal B (Gate B40): United's main IAH lounge with hot food, cocktails, and shower suites; for MileagePlus Premier 1K, United Club members, and Star Alliance Gold
• United Club – Terminal C (Gate C110): Premium lounge near international C gates with expanded food service
• United Polaris Lounge – Terminal C: United's international premium lounge for Polaris Business Class passengers on qualifying long-haul international flights
• Lufthansa Business Lounge – Terminal D: Elegant lounge for Lufthansa Business Class and Miles & More HON Circle members
• The Club IAH (Terminal B): Priority Pass–accepting independent lounge with food, drinks, and a quiet seating environment
• British Airways Lounge – Terminal D: Available to BA Business Class and oneworld Emerald/Sapphire members on transatlantic BA departures

Hotels Near the Airport

Multiple full-service hotels are located within minutes of IAH, many with complimentary shuttle service operating 24 hours a day.

• Marriott Houston Airport: Located in the Marriott terminal complex, connected to Terminal B via an enclosed walkway — the most convenient on-airport hotel
• Hilton Houston North: Approximately 5 miles from the airport with complimentary shuttle and full resort amenities including a large pool
• Courtyard by Marriott IAH: Budget-friendly option 3 miles from the terminal with complimentary shuttle and dining
• Hyatt Regency Houston Intercontinental Airport: Full-service hotel 2 miles from IAH with complimentary shuttle, conference facilities, and multiple dining venues
• Crowne Plaza Houston Intercontinental Airport: Full-service hotel with indoor pool, fitness center, and complimentary shuttle, 2 miles from the terminal

Food and Restaurants

IAH has grown its food and beverage program significantly, with Texas-inspired concepts and Houston favorites alongside international cuisine reflecting the city's diverse population.

• Pappadeaux Seafood Kitchen (Terminal C): The Houston-born seafood chain with Gulf shrimp, crawfish etouffee, and Cajun-inspired dishes
• Pappasito's Cantina (Terminal B): Popular Houston-born Tex-Mex chain with fajitas, enchiladas, and frozen margaritas
• Houston's Own Barbeque (Terminal C): Texas-style BBQ with brisket, ribs, and smoked sausage
• Landry's Seafood (Terminal D): The Houston seafood institution with fresh Gulf Coast catches and a full bar
• local/market (Terminal B): Casual market-style restaurant with local Texas ingredients and rotating menus
• Starbucks (Multiple terminals): Available in Terminals A, B, C, and E

Travel Tips

• Arrive 3 hours before international flights and 2.5 hours for domestic — IAH security in Terminal B (United) can have extended wait times during morning peak departures.
• TSA PreCheck is available at all terminal security checkpoints; CLEAR is available at Terminals B and C.
• Houston traffic on I-45, Hardy Toll Road, and Beltway 8 can be severe during weekday rush hours — factor in significant road travel variability when planning ground transport.
• Tropical weather and thunderstorms, particularly from June to October, can cause significant arrival and departure delays at IAH. Monitor flight status during summer afternoons.
• The United Polaris Lounge in Terminal C is one of the best airport lounges in the United States — eligible passengers should arrive early to enjoy its exceptional amenities.
• IAH does not have a direct rail link to downtown Houston — the METRO bus is the only public transit option and is slower than major hub cities with rail connections.
• Terminal E (Southwest) is completely separate from Terminals A–D; plan accordingly if your itinerary involves a connection through both sides of the airport.