Terminals & gates at IAH
Houston, Texas
Terminal layout at IAH
George Bush Intercontinental Houston Airport is organized into 5 terminals. Each one groups carriers and services together so that connections inside a terminal stay short and predictable. Inter-terminal travel is handled by a free shuttle, walkway, or — at the largest hubs — an automated people mover.
The terminal layout below reflects the standard configuration for IAH. Concourse letters and gate counts can shift slightly during construction, so always confirm your gate against the airport's official departure board the morning of your flight.
Terminal A · 46 gates
Terminal A is one of the primary departure halls at IAH. It holds approximately 46 active gates and a full slate of pre- and post-security amenities. Walking time from the security checkpoint to the farthest gate is roughly 23 minutes — useful to know if you cut it close.
Airlines based here
On-site amenities
- USB and AC charging at every gate
- TSA PreCheck lanes
- Currency exchange
- International arrivals hall
- Airline lounges (Centurion, Sky Club, Polaris, Admirals)
Terminal B · 41 gates
Terminal B is one of the primary departure halls at IAH. It holds approximately 41 active gates and a full slate of pre- and post-security amenities. Walking time from the security checkpoint to the farthest gate is roughly 20 minutes — useful to know if you cut it close.
Airlines based here
On-site amenities
- Local craft beer bar
- Duty-free shopping
- Children's play area
- USB and AC charging at every gate
- Sit-down dining concourse
Terminal C · 36 gates
Terminal C is one of the primary departure halls at IAH. It holds approximately 36 active gates and a full slate of pre- and post-security amenities. Walking time from the security checkpoint to the farthest gate is roughly 18 minutes — useful to know if you cut it close.
Airlines based here
On-site amenities
- Interfaith chapel
- TSA PreCheck lanes
- Pet relief area
- Duty-free shopping
- CLEAR enrollment
Terminal D · 32 gates
Terminal D is one of the primary departure halls at IAH. It holds approximately 32 active gates and a full slate of pre- and post-security amenities. Walking time from the security checkpoint to the farthest gate is roughly 16 minutes — useful to know if you cut it close.
Airlines based here
On-site amenities
- Wellness rooms with massage chairs
- Pet relief area
- TSA PreCheck lanes
- Local craft beer bar
- CLEAR enrollment
Terminal E · 27 gates
Terminal E is one of the primary departure halls at IAH. It holds approximately 27 active gates and a full slate of pre- and post-security amenities. Walking time from the security checkpoint to the farthest gate is roughly 13 minutes — useful to know if you cut it close.
Airlines based here
On-site amenities
- International arrivals hall
- TSA PreCheck lanes
- CLEAR enrollment
- Children's play area
- Interfaith chapel
Connecting between terminals
If your itinerary routes you between terminals at IAH, give yourself extra time. Inter-terminal connections involve either a secure airside shuttle, a landside walkway that requires re-clearing security, or a people mover. Allow at least 45 minutes for a domestic-to-domestic connection and at least 90 minutes if you're transitioning between an international arrival and a domestic departure, since you'll need to clear customs and re-check bags.
Signage inside the terminal will direct you to the connection point. Look for "Inter-Terminal Transit" or the airport's branded shuttle name. Posted ride times are usually accurate but assume a wait of three to seven minutes during peak hours.