S$113 Cheap Flights from Seattle to Houston

View S$113 flight on Mon, 18 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$113 for one-way flights and S$226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$226 Return, found 2 hours ago
S$226
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$226 found 2 hours ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$275 Return, found 2 hours ago
S$275
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$275 found 2 hours ago
United
Sat, 30 Aug - Sat, 6 Sep
SEA
Seattle
IAH
Houston
S$277 Return, found 12 hours ago
S$277
Return
found 12 hours ago
Select United flight, departing Sat, 30 Aug from Seattle to Houston, returning Sat, 6 Sep, priced at S$277 found 12 hours ago
Delta
Sat, 30 Aug - Sat, 6 Sep
SEA
Seattle
IAH
Houston
S$281 Return, found 12 hours ago
S$281
Return
found 12 hours ago
Select Delta flight, departing Sat, 30 Aug from Seattle to Houston, returning Sat, 6 Sep, priced at S$281 found 12 hours ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$291 Return, found 2 hours ago
S$291
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$291 found 2 hours ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$302 Return, found 2 hours ago
S$302
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$302 found 2 hours ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$314 Return, found 2 hours ago
S$314
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$314 found 2 hours ago
Delta
Mon, 18 Aug - Mon, 25 Aug
SEA
Seattle
IAH
Houston
S$321 Return, found 2 hours ago
S$321
Return
found 2 hours ago
Select Delta flight, departing Mon, 18 Aug from Seattle to Houston, returning Mon, 25 Aug, priced at S$321 found 2 hours ago
American Airlines
Sat, 30 Aug - Sat, 6 Sep
SEA
Seattle
IAH
Houston
S$325 Return, found 12 hours ago
S$325
Return
found 12 hours ago
Select American Airlines flight, departing Sat, 30 Aug from Seattle to Houston, returning Sat, 6 Sep, priced at S$325 found 12 hours ago
United
Sat, 30 Aug - Sat, 6 Sep
SEA
Seattle
IAH
Houston
S$327 Return, found 12 hours ago
S$327
Return
found 12 hours ago
Select United flight, departing Sat, 30 Aug from Seattle to Houston, returning Sat, 6 Sep, priced at S$327 found 12 hours ago

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

October is typically the cheapest month to fly

From S$145 - S$331 per traveller.

Graph displaying average flight prices per month

Seattle to Houston route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines, Delta, United
Return price
S$226
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$226. 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$225.70
*Available to Expedia members.