Cheap Flights to George Bush Intercontinental Airport
Traveling to Texas’s largest city? Discover cheap flights to George Bush Intercontinental Airport (IAH), United Airlines’ second-largest hub and one of the most connected airports in the Americas.
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or request an offerAbout George Bush Intercontinental Airport (IAH)
George Bush Intercontinental Airport opened on June 8, 1969, and is located about 23 miles north of downtown Houston, Texas. The airport served over 48 million passengers in 2025, with international traffic reaching a record 12.4 million, a 2.5% increase from 2024. IAH serves as United Airlines’ second-largest hub, with more than 650 daily departures — over 450 of which are United flights — connecting to 118 domestic and 69 international destinations across five terminals spanning more than 15 square miles.
Airport code
IAH (ICAO: KIAH)
Location
Houston, Texas, United States
Airlines serving
United Airlines (hub), Spirit (focus city), American, Delta, Southwest, Volaris, VivaAerobus, Cargolux Italia (cargo)
Popular Routes to and from Houston
United’s vast domestic network anchors Houston’s schedule, alongside strong connections to Latin America and growing service to Asia and Europe.
Route Type
Popular Connections
Domestic
Chicago, Denver, Los Angeles, Newark, New York (JFK, new 2025)
International
Mexico City, Monterrey (new 2025), Edmonton (new 2025), Tokyo (ZIPAIR, new 2025)
Best Time to Book Cheap Flights
Booking 4 to 8 weeks ahead generally offers good value for routes into Houston. July, August, and June are the busiest months, driven by summer travel, so booking further ahead is recommended for travel during that period.
About Houston
Houston is the largest city in Texas and the fourth-largest in the United States, renowned for its role in the global energy industry and as home to NASA’s Johnson Space Center. The city’s remarkably diverse population fuels one of the country’s most exciting culinary and cultural scenes, making it a rewarding destination well beyond its role as a major transportation hub.
Things to Know When Flying Into Houston
2025 saw significant new and expanded service from ZIPAIR, Volaris, United, VivaAerobus, Southwest, Allegiant, Avelo, Delta, and Frontier, strengthening connections to Tokyo, Monterrey, Edmonton, and other cities.
Terminal B is undergoing a complete rebuild through the IAH Terminal Redevelopment Program, with a new central processor and 22 new gates expected by fall 2026; during construction, passengers check in at Terminal C.
The historic IAH Subway, an underground people mover designed by Disney’s WED Enterprises in 1981, connects Terminals A, B, C, and D/E, carrying over 3.3 million passengers in 2025.
Terminal E handles all United international flights and some domestic operations, while Terminal D’s West Pier opened in October 2024 with six new widebody gates.
Why Book Your Houston Flights with Airline Tickets Services
Access to unpublished airfare deals
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Assistance comparing IAH with Houston’s Hobby Airport (HOU) for your itinerary
Guidance on the best time to book for your travel dates
Support across major global airline partners
FAQs — Flights to International Airport
George Bush Intercontinental Airport is United Airlines' second-largest hub, with more than 650 daily departures, over 450 of which are United flights, alongside dozens of other domestic and international carriers.
George Bush Intercontinental Airport served over 48 million passengers in 2025, with international traffic reaching a record 12.4 million passengers, a 2.5% increase from 2024.
George Bush Intercontinental Airport has five terminals: A, B, C, D, and E, connected by the historic IAH Subway, an underground people mover originally designed by Disney's WED Enterprises in 1981.
George Bush Intercontinental Airport is located about 23 miles north of downtown Houston, roughly a 30-minute drive.
Houston is the largest city in Texas, known for its role in the energy industry, NASA's Johnson Space Center, and a remarkably diverse culinary and cultural scene.
Ready to Book Your Flight to Houston?
Start planning your trip today and explore the latest cheap flight deals to George Bush Intercontinental Airport tailored to your travel needs.
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