Houston has two major airports, and picking the wrong one can add an hour or more to your door-to-door trip. George Bush Intercontinental (IAH) sits north of downtown and hosts the city's biggest international network, while William P. Hobby (HOU) sits south and is the home base for Southwest. This guide compares IAH vs HOU on location, airlines, drive times, and ground transportation so you can book the right one the first time. Houston to IAH shuttle
The Quick Answer
Choose IAH if you are flying internationally, connecting through a major hub, or traveling on United, American, Delta, Spirit, or Frontier. Choose HOU if you are flying Southwest, taking a domestic nonstop, or living or staying on the south side of the metro. If Galveston is your final destination, Hobby is the closer airport by a wide margin. Everything else below is detail that confirms or adjusts that starting point.
Location: North Side vs South Side
George Bush Intercontinental sits about 23 miles north of downtown Houston, reached most directly off I-45 or US-59/69. William P. Hobby sits about 11 miles south of downtown, just off the Gulf Freeway. Off-peak, that translates to roughly a 30-minute drive from downtown to IAH and closer to 20 minutes to HOU. During rush hour, either drive can take dramatically longer, and the two airports sit on opposite sides of the city, so an afternoon meeting downtown followed by an evening flight is a very different experience depending on which airport you booked.
Where you start matters more than where the airport ranks on a map. Travelers starting in The Woodlands, Spring, Cypress, or Kingwood are already on the IAH side of town and can reach the airport in twenty to thirty minutes outside peak hours. Travelers starting in Pearland, Friendswood, Clear Lake, or League City have the same advantage toward Hobby. Cross the whole metro and you are signing up for a drive that can exceed an hour on a bad day; the same rush-hour math that applies in Austin applies doubly on Houston's freeways.
Airlines and Routes
IAH is United's largest hub by some measures and offers the deepest route network: nonstop service across Europe, Latin America, and Asia, plus domestic coverage from every major and low-cost carrier. If your itinerary involves a connection or an international long-haul, IAH is almost certainly your airport. HOU is dominated by Southwest, which runs a large domestic schedule plus international service to Mexico and the Caribbean from the airport's dedicated international concourse. A handful of other carriers operate from Hobby as well, but the practical takeaway is simple: your airline usually decides your airport before any other factor does.
Before booking, check both airports for your route. Houston is big enough that some city pairs are served from both fields at different times of day, and the fare difference rarely survives the added ground cost and time of crossing the metro to the less convenient one.
IAH vs HOU for a Galveston Cruise
Cruise passengers should pay special attention. Hobby is roughly 40 miles from the Galveston cruise terminals while Bush Intercontinental is closer to 70, so flying into HOU saves both drive time and transfer cost on the way to the port. If your cruise line or flight schedule forces you into IAH, plan the ground transfer realistically rather than assuming a quick hop. See our guide to Houston airport to Galveston cruise shuttles for the full breakdown.
Ground Transportation at Both Airports
Both airports offer the standard mix of taxis, rideshares, and rental cars, and both are far enough from the center of the metro that ground transportation deserves a line in your budget. A door-to-door shuttle is the option that removes variables: a fixed pickup time, no parking fees accruing per day, and a driver who knows the terminal layout on your arrival. If you are weighing parking costs against a ride, the same comparison we covered for DFW pickups applies to Houston.
Terminal Notes Worth Knowing
IAH is a multi-terminal airport with five lettered terminals connected by the Skyway and Subway people movers, and your experience depends on which terminal your airline uses; our IAH Terminal C guide covers one of the busiest. HOU is a compact single-concourse experience by comparison, which is one reason travelers with simple domestic itineraries often prefer it: shorter walks, faster exits, and quicker curbside pickups. Allow a few extra minutes at IAH for the inter-terminal leg if you are connecting or meeting someone at a different hall.
Which Airport for Your Neighborhood?
A quick rule of thumb by starting point: north and northwest Houston, The Woodlands, Spring, Tomball, and Huntsville lean IAH. South Houston, Pearland, Clear Lake, and anything along I-45 toward Galveston lean HOU. Downtown and the inner loop are nearly neutral, so there the airline schedule and fare decide. If you are moving between cities rather than flying, our Houston to Austin and Houston to Hobby routes run daily and cover both sides of the metro.
Frequently Asked Questions
Which Houston airport is better for international flights?
IAH offers the largest international network, including nonstops to Europe, Asia, and Latin America. HOU has international service too, mainly to Mexico and the Caribbean on Southwest. For long-haul international travel, IAH is almost always the right choice.
Is it better to fly into IAH or HOU for Galveston?
Hobby. HOU sits roughly 40 miles from the Galveston cruise terminals versus closer to 70 miles from IAH, which saves real drive time and transfer cost on cruise day.
How far is IAH from downtown Houston compared to HOU?
IAH is about 23 miles north of downtown; HOU is about 11 miles south. Off-peak drives run roughly 30 and 20 minutes respectively, but rush hour can double both, so build buffer into your schedule.
Which airport is closer to my hotel?
Map it by side of town: The Woodlands, Spring, Cypress, and Kingwood are on the IAH side; Pearland, Friendswood, and Clear Lake are on the HOU side. Downtown is roughly neutral, so let your airline and fare decide there.
