Guía de ciudad
Houston IAH: What to Do on a Layover
Midtown Houston in 3 hours: tacos al pastor, Menil Collection free, bayou walk.
Getting from the airport
IAH to city center: 67 minutes by bus (DOWNTOWN DIRECT). Trains run every 20 minutes. Service runs 05:00 to 23:30. Skip the taxi unless your connection is under 5 hours.
What to do in Houston
The stops worth making: Space Center Houston, Museum District, Texas BBQ, Buffalo Bayou Park. Rated above 4.4: Houston Museum of Natural Science (4.8), Discovery Green (4.7), The Museum of Fine Arts, Houston (4.8), Cidercade Houston (4.5), Meow Wolf Houston's Radio Tave (4.4). You do not need the full tourist circuit. Pick two and commit.
Visa and entry
Houston is visa-free for US passports. No application, no fee. The border process at IAH is standard. Budget 30 minutes.
How long do you need
The minimum useful layover is 4 hours. That gives you 67 minutes in each direction plus about 16 minutes on the ground. Up to 24 hours is a proper overnight.
IAH airport
IAH has 10 lounges. For short connections under 4 hours, the terminal is the destination: food options, showers, and enough space to reset before the next leg.