The IAH underground train connects all five terminals and runs continuously — free and fast for inter-terminal connections without re-clearing security.
Things to do at George Bush Intercontinental Airport (IAH)
George Bush Intercontinental AirportIAH

At the airport
Things to do in George Bush Intercontinental Airport
George Bush Intercontinental Airport is United Airlines' major hub and one of the largest airports in the US, with five terminals connected by an underground train. The international terminal (Terminal D) has a solid range of dining and United's flagship Club Lounge. The airport is about 35–45 minutes from downtown Houston by highway — a viable trip on a longer layover. The Houston Museum of Natural Science and Hermann Park are popular destinations.
Insider intel
Top Tips for George Bush Intercontinental Airport
- Houston's flat highway system means rideshare to the Museum District or downtown typically takes 35–45 minutes, depending on traffic.
Lounge directory
Browse lounges at IAH
2 Sanctifly partner lounges at George Bush Intercontinental Airport. Each is bookable with points.
100 points per guestAir France Lounge
At George Bush Intercontinental Airport (IAH) in Houston, United States, the Air France Lounge is located in Terminal D on the airside, making it a convenient airport lounge option once you’ve completed the formalities. After you pass passport control and the security check, continue into the departures area and look for the lounge near gate D18. Because it’s situated airside in Terminal D, you’ll need to have cleared the required checkpoints and be within the secure international departures zone to access it. This clear location near D18 helps travelers quickly find a comfortable place to relax, refresh, or get work done before their next flight.Book Now
100 points per guestKLM Crown Lounge
At George Bush Intercontinental Airport (IAH) in Houston, United States, the KLM Crown Lounge is located airside in Terminal D, making it a convenient airport lounge option once you’ve completed the international departure formalities. After passing passport control and the security check, continue into the airside departures area and follow the signs toward the D gates. The lounge is situated near gate D15, so it’s easy to find if you’re traveling from Terminal D or connecting through this concourse. Plan to visit after clearing the required checks, as you’ll need to be airside to access the lounge and make the most of your time before boarding.Book Now
Purchase a Sanctifly membership via our website or app.
Unlock airport-specific digital content and reserve VIP lounges using the points included with your plan.
Select the tier that fits your travel habits; higher tiers include more points.
When you book a lounge, you'll receive a unique access code in the app and by email—show this at the lounge to gain access.
You can buy extra points at any time, and rates improve with higher-tier plans.
Membership unlocks airport-specific digital content and the ability to book VIP lounges using points.
Each tier
Liftoff ($25/year)
Explorer ($97/year)
Jetsetter ($220/year)
Trailblazer ($399/year)
provides a different annual points allowance (except Liftoff, which doesn't include points) that refreshes when your subscription renews. You can use your points to reserve lounge access and purchase additional points through the app if you need more.
Higher tiers not only come with more points but also reduce the per-point price when buying extra.
Points are the currency you use in the Liftoff app to book VIP lounge visits. Most plans — Liftoff, Explorer, Jetsetter and Trailblazer — include a points allowance that is deposited into your account whenever your subscription renews. Liftoff does not include points. You spend points to reserve lounges and you can top up your balance at any time through the app. If you cancel your membership, any remaining points expire 30 days after cancellation.
Additional points can be purchased directly in the Sanctifly app from your mobile. All plans allow you to buy more points whenever you need them, and the per-point price decreases on higher-tier plans. Purchased points are added to your account immediately and are non-refundable. If you cancel your membership, any remaining points expire 30 days after cancellation.