Does Southwest Airlines Serve Houston’s IAH?

Last Updated on August 26, 2026 by Daniel Globe

Southwest Airlines has a long history in Houston, but travelers need to choose the correct Houston airport. Southwest no longer operates scheduled passenger flights at George Bush Intercontinental Airport (IAH). The airline ended its IAH service on August 4, 2024, and its Houston flights now operate from William P. Hobby Airport (HOU).

Overview of Houston’s George Bush Intercontinental Airport (IAH)

George Bush Intercontinental Airport is Houston’s largest airport and its primary international gateway. It is located about 23 miles north of downtown Houston and has terminals A, B, C, D, and E.

According to Houston Airports’ finalized 2025 figures, IAH handled more than 48.7 million passengers. The airport had 26 passenger airlines and offered nonstop service to 189 destinations, including 118 domestic and 71 international destinations. That makes IAH a much larger international operation than William P. Hobby Airport.

IAH provides free airport Wi-Fi, restaurants, shops, lounges, rental-car access, taxis, rideshare pickup, parking, and other passenger services. Terminal and check-in arrangements can change, so passengers should confirm their airline, terminal, and departure information before going to the airport.

Southwest Airlines’ Presence in Houston

Southwest remains an important airline in Houston, but its scheduled passenger operation is based at William P. Hobby Airport (HOU), not IAH.

Southwest returned to IAH in April 2021, giving travelers on the north side of the Houston metropolitan area another airport choice. The airline initially offered IAH service to cities including Dallas Love Field, Denver, Nashville, New Orleans, and Chicago Midway. That second Houston-airport operation did not last.

In April 2024, Southwest announced that it would cease operations at IAH along with Bellingham International Airport, Cozumel International Airport, and Syracuse Hancock International Airport. IAH service ended on August 4, 2024.

Today, Southwest’s official Houston airport information directs passengers to Hobby Airport. At HOU, Southwest lists the Central Concourse and Gates 1–4, 20–27, and 40–51.

Does Southwest Airlines Fly From IAH in 2026?

No. Southwest has no regularly scheduled passenger service from George Bush Intercontinental Airport in 2026. There is no scheduled Southwest passenger check-in or departure operation at IAH, and travelers cannot book a normal Southwest itinerary departing from or arriving at IAH.

The airline’s official April 2024 network announcement stated that IAH operations would cease on August 4, 2024. Southwest said the decision was part of broader network optimization while the airline addressed financial-performance pressures and aircraft-delivery constraints.

If a flight-search website, old route map, or older travel article still shows Southwest flights from IAH, check the itinerary directly on Southwest’s website. Historical IAH schedules included destinations such as Dallas Love Field, Denver, Nashville, New Orleans, and Chicago Midway, but those schedules no longer represent Southwest’s Houston operation.

Routes and Destinations Served by Southwest From Houston Hobby

Southwest’s Houston flights now use HOU. From Hobby, travelers can find numerous nonstop and connecting options across the United States, along with selected international service in Southwest’s network.

Schedules change by season, so a fixed Southwest route list can become outdated quickly. The most reliable way to check whether Southwest currently offers a nonstop flight from Houston to a specific city is to search from Houston (Hobby), TX (HOU) on Southwest’s official booking site.

IAH vs. Hobby Airport for Southwest Travelers

IAH and HOU serve different parts of the Houston market. IAH is the larger airport, sits north of downtown, and has an extensive international network. Hobby is substantially smaller, is south of downtown, and is the airport Southwest passengers need for Houston flights.

Why Did Southwest Stop Serving IAH?

Southwest’s decision to leave IAH was part of a broader network review rather than a withdrawal from Houston altogether.

In its first-quarter 2024 results, Southwest said Boeing aircraft-delivery delays were affecting capacity plans and that it was taking additional steps to optimize its route network and improve financial performance. The airline identified IAH, Bellingham, Cozumel, and Syracuse as airports where operations would end on August 4, 2024.

Southwest continued serving Houston at Hobby Airport, where it already had a much larger operation. Concentrating Houston service at HOU allows the airline to focus its aircraft, employees, gates, and schedules around its established Hobby network instead of operating a second Houston passenger station at IAH.

Southwest left IAH on August 4, 2024, but it did not leave Houston: its Houston passenger flights continue at William P. Hobby Airport.

What Southwest Passengers Gain and Lose by Using Hobby Instead

For many Southwest passengers, Hobby can be convenient because it is closer to downtown Houston and is smaller than IAH. Travelers generally have less terminal area to navigate, and Southwest has a substantial gate presence there.

The tradeoff is location. HOU may be less convenient for people who live or work in northern Houston, The Woodlands, Spring, Humble, or areas close to IAH. A passenger choosing Southwest may need a longer ground trip to Hobby than someone booking another airline from IAH.

IAH also has a much larger international network. Travelers trying to combine an international IAH flight with a separate Southwest ticket should remember that switching between IAH and HOU requires a ground transfer across Houston. The airports are separate facilities and are not connected by an airside train or airline connection corridor.

How to Get Between HOU and IAH

Common options include a taxi, rideshare service, rental car, private car service, or public transportation. Houston Airports publishes ground-transportation information for both airports, including public-bus directions between HOU and IAH.

Public transit can require a downtown connection and can take much longer than a direct car trip. If you have a time-sensitive onward flight, compare the transfer time, traffic conditions, baggage requirements, and your second flight’s check-in deadline before booking separate HOU and IAH tickets.

Southwest’s Baggage and Seating Policies Have Changed

Older articles often describe Southwest as having two universally free checked bags and an open-seating boarding system. Neither description is generally accurate for Southwest travel in 2026.

Checked baggage

For applicable U.S. mainland travel booked and ticketed and/or changed on or after April 9, 2026, Southwest’s current optional travel charges list a $45 first checked bag and $55 second checked bag for Basic, Choice, and Choice Preferred fares. Choice Extra includes two checked bags. Rapid Rewards tier status, eligible Southwest credit cards, active-duty military status, and other qualifying circumstances can provide different baggage benefits.

Assigned seating

Southwest’s long-running open-seating model has also ended. The airline transitioned to assigned seating on January 27, 2026. Seat selection now depends on the fare and any applicable Rapid Rewards or credit-card benefits.

Basic includes a Standard seat assigned at check-in unless another eligible seating benefit applies. Choice includes Standard-seat selection at booking. Choice Preferred includes a Preferred seat or available Standard seat, while Choice Extra includes an Extra Legroom seat or other available seat.

*For applicable U.S. mainland travel under Southwest’s current 2026 fee rules. Rapid Rewards status, eligible Southwest credit cards, military eligibility, partner itineraries, and other exceptions can change the baggage benefit.

These changes matter when comparing a Southwest flight from HOU with another airline’s flight from IAH. Compare the total trip price—including baggage, seat selection, ground transportation, and schedule—not just the advertised base fare.

Impact of Southwest’s Absence at IAH

Southwest’s departure reduced the number of airline choices available to travelers who specifically want to use IAH. Passengers in northern parts of the metropolitan area may now have to choose between another airline at IAH and traveling farther to Hobby to fly Southwest.

However, IAH remains a major domestic and international airport with a large route network. Houston Airports reported 26 passenger airlines and 189 nonstop destinations at IAH in 2025, so travelers who prioritize Bush Intercontinental still have extensive flight options.

For Southwest, Houston remains an important market through Hobby rather than through a split operation at both major Houston airports.

Could Southwest Airlines Return to IAH?

An airline can change its network in the future, but travelers should not plan a trip on the assumption that Southwest will return to IAH. Southwest’s booking and Houston airport information identify Hobby as its Houston airport, and there is no scheduled Southwest passenger service at IAH in 2026.

If Southwest announces a future return, strong confirmation would include bookable IAH flights on Southwest.com together with an official Southwest or Houston Airports announcement. Until then, use HOU when searching for Southwest flights in Houston.

How to Plan a Southwest Trip From Houston

Start by entering HOU, not IAH, when searching Southwest’s website or app. Before purchasing, compare the flight schedule, fare conditions, baggage costs, seat benefits, and transportation time between your home or hotel and Hobby Airport.

• Confirm that the reservation says Houston (Hobby) — HOU.
• Check whether your fare includes seat selection or whether a seat will be assigned later.
• Review your checked-bag allowance before arriving at the airport.
• If another flight uses IAH, treat the airport change as a separate ground transfer.
• Allow extra time when separate tickets, checked baggage, or Houston traffic are involved.

If your plans involve an international flight at IAH, consider whether booking your domestic segment on an airline serving IAH would simplify the trip. Separate tickets involving HOU and IAH can introduce additional ground-travel time and increase the risk of missing the second flight if the first flight is delayed.

For departures from Hobby, check Southwest’s airport information and your boarding pass before travel for the latest gate, check-in, security, and arrival guidance. Southwest currently lists the Central Concourse at HOU with Gates 1–4, 20–27, and 40–51.

Practical airport clothing can also make a long travel day easier, especially if you are carrying documents, a phone, and other small essentials. See our guide to the best travel pants with hidden pockets for another trip-planning option.

The Future of Southwest Airlines at IAH

Southwest’s most recent IAH operation gave Houston-area passengers another airport choice from April 2021 until August 2024, but the airline ultimately consolidated its scheduled Houston passenger service around Hobby Airport.

That makes the present choice straightforward: travelers who specifically want Southwest should search HOU, while travelers who specifically need IAH should compare airlines that currently operate there. Airline networks can change, so check the operating airport shown on your reservation before travel rather than relying on an old article, cached search result, or outdated route map.

Southwest itself has also changed significantly since its IAH period. The carrier continues to operate Boeing 737 aircraft, but its fare structure, checked-bag rules, seating system, and boarding benefits have evolved. Southwest’s June 30, 2026 fleet consisted of Boeing 737-700, 737-800, and 737-8 aircraft. Current airline information is therefore especially important when planning a Southwest trip.

Frequently Asked Questions

Does Southwest Airlines operate flights out of George Bush Intercontinental Airport (IAH)?

No. Southwest ended scheduled service at George Bush Intercontinental Airport on August 4, 2024. Southwest’s Houston passenger flights currently operate from William P. Hobby Airport (HOU).

What destinations does Southwest Airlines serve from IAH?

None at present. Southwest does not operate scheduled passenger flights from IAH. Search from Houston Hobby (HOU) on Southwest’s website to see available Houston routes.

Are there international Southwest flights from IAH?

No. Because Southwest does not currently serve IAH, it offers neither domestic nor international scheduled passenger flights from that airport. Southwest passengers in Houston should search from HOU.

When did Southwest stop flying from IAH?

Southwest ceased operations at George Bush Intercontinental Airport on August 4, 2024. The airline had resumed IAH service in April 2021 before withdrawing as part of a broader network optimization plan.

Which Houston airport does Southwest use?

Southwest uses William P. Hobby Airport, airport code HOU. Its Houston airport information currently lists the Central Concourse and Gates 1–4, 20–27, and 40–51.

Can I book Southwest to IAH and connect to an international flight?

Not currently. Southwest does not fly to IAH. If you fly Southwest into HOU and have a separate international departure at IAH, you must arrange your own ground transfer between the airports and complete any required baggage, check-in, and security procedures.

How can I travel between Hobby Airport and IAH?

You can use a taxi, rideshare service, rental car, private transportation, or public transit. Houston Airports publishes bus directions between HOU and IAH. Because the airports are separate facilities, allow substantial time when transferring for another flight.

Is Hobby Airport or IAH closer to downtown Houston?

Hobby Airport is closer. Houston Airports places HOU about 7 miles south of downtown Houston and IAH about 23 miles north of downtown. Actual driving time depends on traffic and your exact destination.

Does Southwest still have open seating and two free checked bags?

Not as universal policies. Southwest transitioned to assigned seating on January 27, 2026. Checked-bag fees and benefits now vary by fare, Rapid Rewards status, eligible credit-card benefits, military eligibility, and other exceptions. Choice Extra includes two checked bags under the current fare structure.

Sources

1. Southwest Airlines — First Quarter 2024 Results — confirms the decision to cease IAH operations on August 4, 2024 and explains the network-optimization context.
2. Southwest Airlines — Flights From Houston Hobby — confirms Southwest’s Houston operation at HOU and current concourse and gate information.
3. Southwest Airlines — Assigned Seating — confirms the January 27, 2026 assigned-seating transition and current fare seating benefits.
4. Southwest Airlines — Optional Travel Charges — confirms current checked-baggage charges and qualifying exemptions.
5. Houston Airports — About the Houston Airport System — provides 2025 passenger totals, destination counts, airline counts, and airport-location statistics for IAH and HOU.
6. Southwest Airlines — Second Quarter 2026 Form 10-Q — confirms Southwest’s June 30, 2026 Boeing 737 fleet composition.