S$178 Cheap Flights from Seattle to Houston

View S$178 flight on Thu, 21 Aug, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Seattle to Houston (SEA-IAH)

Prices were available within the past 7 days and start at S$178 for one-way flights and S$357 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$357 Return, found 6 days ago
S$357
Return
found 6 days ago
Select Delta flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$357 found 6 days ago
United
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$403 Return, found 6 days ago
S$403
Return
found 6 days ago
Select United flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$403 found 6 days ago
Delta
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$416 Return, found 6 days ago
S$416
Return
found 6 days ago
Select Delta flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$416 found 6 days ago
Delta
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$428 Return, found 6 days ago
S$428
Return
found 6 days ago
Select Delta flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$428 found 6 days ago
Delta
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$441 Return, found 6 days ago
S$441
Return
found 6 days ago
Select Delta flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$441 found 6 days ago
United
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$449 Return, found 6 days ago
S$449
Return
found 6 days ago
Select United flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$449 found 6 days ago
United
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$461 Return, found 6 days ago
S$461
Return
found 6 days ago
Select United flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$461 found 6 days ago
Delta
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$467 Return, found 6 days ago
S$467
Return
found 6 days ago
Select Delta flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$467 found 6 days ago
United
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$474 Return, found 6 days ago
S$474
Return
found 6 days ago
Select United flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$474 found 6 days ago
American Airlines
Mon, 25 Aug - Sat, 30 Aug
SEA
Seattle
IAH
Houston
S$557 Return, found 6 days ago
S$557
Return
found 6 days ago
Select American Airlines flight, departing Mon, 25 Aug from Seattle to Houston, returning Sat, 30 Aug, priced at S$557 found 6 days ago

Find the cheapest month to fly from Seattle (SEA) to Houston (IAH)

October is typically the cheapest month to fly

From S$146 - S$344 per traveller.

Graph displaying average flight prices per month

Seattle to Houston route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Return price
S$357
Distance
2994 km
Average flight time
6 hours 21 mins

Flights from Seattle to Houston

There are several airlines that operate frequent flights from Seattle (SEA) to Houston (IAH) including

The earliest flight leaves Seattle Tacoma Intl. Airport at 00:01 and arrives at George Bush Intercontinental Airport at 04:40. The last flight of the day departs Seattle at 23:55 and arrives at Houston at 20:31.

The flight distance from Seattle to Houston is about 3030 km, the shortest flight is 04 hours 03 minutes with United Airlines.

Expedia lets you search across the largest number of airlines and Houston flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Seattle Houston flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle to Houston trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Houston flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Seattle to Houston with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

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 S$357. 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.

Explore a world of travel with Expedia

Houston Airports

Houston

Seattle to George Bush Intercontinental
S$357.00
*Available to Expedia members.