Flying into Houston means choosing between two airports that sit on opposite ends of the metro: William P. Hobby Airport (HOU) about 11 miles southeast of downtown, and George Bush Intercontinental Airport (IAH) about 23 miles north. Both are run by the Houston Airport System, and together they moved 62 million passengers in 2025 — but they serve very different trips. This guide breaks down distance, airlines, drive times, transit options, and the Galveston cruise question so you can pick the right runway for your visit. Hobby Airport shuttle
Quick Answer: Which Houston Airport Should You Choose?
Choose Hobby (HOU) if you are flying Southwest or another domestic carrier, staying downtown, in the Museum District, or heading to the Texas Medical Center or a Galveston cruise. It is closer to the south side of the city and far easier to navigate with one compact terminal. Choose Bush Intercontinental (IAH) if you need United Airlines, an international nonstop, or you are staying north of the city in areas like The Woodlands. IAH is one of the largest international gateways in the country; Hobby is the close-in domestic workhorse. IAH to downtown Houston shuttle
Hobby vs IAH at a Glance
- Distance from downtown: Hobby is roughly 9 to 11 miles southeast; Bush Intercontinental is about 23 miles north.
- Typical drive to downtown: 15 to 25 minutes from Hobby; 25 to 45 minutes from IAH depending on traffic on I-45 North.
- Main airline: Hobby is dominated by Southwest Airlines; IAH is a major United Airlines hub.
- Size: IAH has five terminals (A through E) connected by the Skyway and Subway trains; Hobby has one terminal complex with a central concourse and the West Concourse for international flights.
- 2025 passengers: IAH served about 48 million travelers; Hobby served about 14 million.
- International service: IAH handled a record 12.4 million international passengers in 2025; Hobby offers a smaller set of international routes, mostly to Mexico, Central America, and the Caribbean on Southwest.
- Galveston distance: Hobby is about 40 to 45 miles from the Port of Galveston; IAH is about 70 miles.
Location and Drive Times: The South Side vs the North Side
The single biggest factor for most visitors is geography. Hobby sits off the Gulf Freeway (I-45) southeast of downtown, which puts it roughly 15 to 25 minutes from downtown hotels, the Texas Medical Center, and NRG Stadium in normal traffic. Bush Intercontinental sits north of the city near the Hardy Toll Road and Beltway 8, and the drive into town runs 25 to 45 minutes — longer during the weekday rush periods Houston is famous for, roughly 7 to 9 in the morning and 4 to 7 in the evening. If your hotel or meeting is in The Woodlands or Spring, the math flips and IAH becomes the closer airport by a wide distance. Houston to IAH
Neither airport has direct rail service to downtown, so every arrival relies on driving, rideshare, a shuttle, or the bus.
Airlines and Destinations: Southwest's House vs United's Fortress
These airports are defined by the two airlines that dominate them. Hobby is effectively a Southwest stronghold — federal T-100 data for 2025 shows Southwest carried roughly 94 percent of Hobby's enplaned passengers, with the rest split among Delta, American, and a handful of low-cost carriers. Hobby's top routes read like a leisure-travel map: Dallas Love Field, Atlanta, Denver, Las Vegas, Phoenix, and Orlando. In 2025 Hobby offered about 81 nonstop destinations, including a short list of international markets.
IAH is United Airlines' second-largest hub and one of the busiest airports in the country, with about 48 million passengers in 2025. Five terminals and a deep route network give IAH nonstop service across Latin America, Europe, Canada, and — since ZIPAIR's arrival — Asia. New routes added for 2025 included Tokyo, Monterrey, Edmonton, New York-JFK, and Guatemala City, according to the Houston Airport System. If a city has a nonstop from Houston, it almost certainly flies from IAH.
International Arrivals: IAH Is the Gateway
For overseas trips, IAH is usually the only realistic choice. Bush Intercontinental set a record in 2025 with 12.4 million international passengers, up 2.5 percent from 2024, and it hosts the full range of global carriers including United's long-haul network and international partners in Terminal D and E. Hobby does have international service — Southwest launched flights to Mexico, Central America, and the Caribbean from its West Concourse in October 2015 — but the route list is short and regional. If you are connecting from Europe, Asia, or South America, plan on landing at IAH.
Getting Downtown: Bus, Rideshare, or Shuttle
Public transit is a real option from both airports, though it is slow. From Hobby, METRO Route 40 runs from the airport into downtown along Broadway; it is inexpensive but stops frequently. From IAH, METRO Route 102 (Bush IAH) connects the airport to downtown along I-45 and Beltway 8 — the ride takes 50 to 90 minutes because it works through local neighborhoods. Houston Airports also operates a Downtown Direct express bus from IAH Terminal E to downtown, running daily from about 5:30 a.m. to 8 p.m. with departures every 30 minutes for a flat fare of four dollars and fifty cents.
For door-to-door comfort — especially with luggage, in summer heat, or outside bus hours — a pre-booked shuttle or rideshare is the standard choice. A Hobby Airport shuttle gets you from curb to hotel without navigating rideshare pickup zones, and the same works from the north side with an IAH to downtown Houston shuttle. If your plans take you between the airports or across the state, Texas Shuttle also runs the Houston to IAH corridor around the clock.
Galveston Cruises: Hobby Wins Almost Every Time
The Port of Galveston is one of the busiest cruise ports in the United States, and the airport choice matters more here than almost anywhere else. From Hobby, the Port of Galveston is about 40 to 45 miles south down I-45 — typically a 45-minute to one-hour drive. From IAH, the same trip is roughly 70 miles and takes an hour and a quarter to an hour and three-quarters, because the route crosses the entire metro area before it even reaches downtown. On peak embarkation days, add another 15 to 20 minutes. Cruise lines recommend landing before noon on embarkation day; choosing Hobby makes that much easier to pull off.
When IAH Is the Better Pick
Hobby's convenience does not make it universally right. Fly into IAH when: you are flying United or an international carrier; you need a nonstop city Hobby does not serve; you are staying or working in north Houston, The Woodlands, or Conroe; or the fare difference on your dates is large enough to justify the longer drive. IAH's five terminals also mean more dining and lounge options, which matters on long connections. Just budget the extra transfer time — an IAH arrival that looks 20 minutes cheaper on a fare site can cost an hour on the ground.
Frequently Asked Questions
Is Hobby or Bush Intercontinental closer to downtown Houston?
Hobby. It is about 9 to 11 miles from downtown, roughly half the distance of IAH, and the drive usually takes 15 to 25 minutes versus 25 to 45 minutes from Bush Intercontinental.
Which airport is bigger, IAH or Hobby?
IAH is far bigger: about 48 million passengers and five terminals in 2025, versus about 14 million passengers and one terminal complex at Hobby.
Does Hobby Airport have international flights?
Yes. Southwest flies from Hobby to destinations in Mexico, Central America, and the Caribbean, and the airport's West Concourse opened for international service in 2015. But for long-haul international travel to Europe, Asia, or South America, IAH is the airport with nonstop options.
Which Houston airport is best for a Galveston cruise?
Hobby. It is about 40 to 45 miles from the Port of Galveston via I-45 South, roughly 25 to 30 miles closer than IAH, which can save 30 to 45 minutes on embarkation day.
Is there a bus from the airports to downtown Houston?
Yes. METRO Route 40 serves Hobby, and METRO Route 102 plus the Downtown Direct express serve IAH. Buses are the cheapest option but take considerably longer than a shuttle or rideshare, especially from IAH.
Sources
- Houston Airports closes 2025 with strong international growth, record cargo (fly2houston.com) — 62 million system passengers; IAH 48 million; Hobby 14 million; record 12.4 million international passengers at IAH.
- Houston Airport System FY27 budget workshop presentation (houstontx.gov) — 2025 passenger totals and 2025 route additions including Tokyo, Monterrey, and New York-JFK.
- HOU vs IAH airport guide (theparkingspot.com) — airport distances to downtown, drive times, concourse layout, Southwest international service since October 2015.
- HOU airport dashboard, T-100 segment data (dwuconsulting.com) — Southwest share of Hobby enplanements and top routes, CY 2025.
- Public bus transportation at IAH (fly2houston.com) — METRO Route 102 service and transit time to downtown.
- Metro Downtown Direct (fly2houston.com) — express bus schedule from IAH Terminal E.
