Houston Intercontinental · IAH · Question
What Airlines Fly Out of IAH? Complete Airline List
Expert answer updated for 2026, with official sources and links to detailed guides.
George Bush Intercontinental Airport (IAH) is served by 11+ airlines, offering flights to domestic and international destinations. IAH is a hub airport for United Airlines, which means extensive route networks and frequent flights from these carriers.
All Airlines at IAH
- United Airlines
- American Airlines
- Delta Air Lines
- Southwest Airlines
- Spirit Airlines
- Frontier Airlines
- Air France
- British Airways
- Emirates
- Lufthansa
- Turkish Airlines
Which Terminal Is Each Airline At?
Airlines at IAH are spread across 5 terminal areas. To find exactly which terminal, gates, and TSA checkpoint your airline uses, use our Terminal Finder tool — just select IAH and your airline for instant results.
You can also see the full terminal-by-terminal breakdown in our IAH airline directory, which includes gate ranges and hub badges.
Hub Airlines at IAH
United Airlines uses IAH as a hub, operating the most flights and typically occupying dedicated terminal space. Hub passengers benefit from more flight options, better lounge access, and stronger frequent flyer earning at their hub airport.
For detailed guides on individual airlines including baggage fees, loyalty programs, and check-in tips, visit our airline directory.