Cheap Flights from Seattle (SEA) to Houston (IAH)

View AU$218 flight on Sun, 20 Apr. 2025Opens in a new window

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Cheap Flights from Seattle (SEA) to Houston (IAH)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$436 Return, found 4 days ago
AU$436
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$436 found 4 days ago
Alaska Airlines
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$436 Return, found 4 days ago
AU$436
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$436 found 4 days ago
Delta
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$451 Return, found 4 days ago
AU$451
Return
found 4 days ago
Select Delta flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$451 found 4 days ago
American Airlines
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$451 Return, found 4 days ago
AU$451
Return
found 4 days ago
Select American Airlines flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$451 found 4 days ago
Alaska Airlines
Thu., 8 May - Wed., 14 May
SEA
Seattle
IAH
Houston
AU$458 Return, found 1 day ago
AU$458
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu., 8 May from Seattle to Houston, returning Wed., 14 May, priced at AU$458 found 1 day ago
American Airlines
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$470 Return, found 4 days ago
AU$470
Return
found 4 days ago
Select American Airlines flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$470 found 4 days ago
Delta
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$470 Return, found 4 days ago
AU$470
Return
found 4 days ago
Select Delta flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$470 found 4 days ago
Delta
Thu., 8 May - Wed., 14 May
SEA
Seattle
IAH
Houston
AU$475 Return, found 1 day ago
AU$475
Return
found 1 day ago
Select Delta flight, departing Thu., 8 May from Seattle to Houston, returning Wed., 14 May, priced at AU$475 found 1 day ago
American Airlines
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$486 Return, found 4 days ago
AU$486
Return
found 4 days ago
Select American Airlines flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$486 found 4 days ago
United
Sun., 20 Apr. - Tue., 29 Apr.
SEA
Seattle
IAH
Houston
AU$507 Return, found 4 days ago
AU$507
Return
found 4 days ago
Select United flight, departing Sun., 20 Apr. from Seattle to Houston, returning Tue., 29 Apr., priced at AU$507 found 4 days ago
Flight from Seattle to Houston route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$435
Distance
2994 km

Your quick guide to flights from Seattle to Houston

Pick up great flights from Seattle to Houston

With Expedia, you have your pick of 16 flights a day with 20 airlines covering flights from Seattle to Houston. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Houston that take around 8 hours.

Find cheap flights from Seattle to Houston

From the great flight deals with prices currently ranging from AU$436 to AU$507, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Houston around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Houston is normally in April.

Reasons to book your flight from Seattle to Houston with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Houston across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Houston right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from SEA to IAH?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from SEA to IAH was AU$436. Fares this good don’t last forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to George Bush Intercontinental Airport (IAH)?
Most flights can be cancelled online, but every airline has its own terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to Houston Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Seattle - Tacoma Intl. Airport (SEA) to IAH flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Sea-Tac Airport to George Bush Intercontinental Airport (IAH)?
Expect to be in the air for a while, as the flight distance between SeaTac and Houston is 3 000 kilometres. Put together a playlist of your favourite songs before you leave home to keep yourself entertained during the trip.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to IAH?
United Airlines (UA) is a top choice. It offers 91 flights between Seattle - Tacoma Intl. Airport (SEA) and IAH each month. If you want more options, check out the fares from Alaska Airlines (AS). This airline offers 60 flights a month between these airports.
Are SEA to Houston Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to get a fantastic last-minute deal from Sea-Tac Airport to IAH, but it’s also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it’s worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares carrier prices and updates flight deals frequently, so you can be certain you’re always getting the latest offers.
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