฿7,530 Cheap Flights from Seattle (SEA) to Houston (IAH)

View ฿7,530 flight on Fri, 19 Jun 2026Opens 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 (SEA) to Houston (IAH)

Prices were available within the past 7 days and start at ฿7,530 for one-way flights and ฿21,815 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿21,815 Return, found 2 days ago
฿21,815
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿21,815 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿22,135 Return, found 2 days ago
฿22,135
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿22,135 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿22,310 Return, found 2 days ago
฿22,310
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿22,310 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,105 Return, found 2 days ago
฿23,105
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,105 found 2 days ago
Delta
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,260 Return, found 2 days ago
฿23,260
Return
found 2 days ago
Select Delta flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,260 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,280 Return, found 2 days ago
฿23,280
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,280 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,425 Return, found 2 days ago
฿23,425
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,425 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,600 Return, found 2 days ago
฿23,600
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,600 found 2 days ago
United
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,745 Return, found 2 days ago
฿23,745
Return
found 2 days ago
Select United flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,745 found 2 days ago
American Airlines
Sat, 2 May - Sat, 9 May
SEA
Seattle
IAH
Houston
฿23,905 Return, found 2 days ago
฿23,905
Return
found 2 days ago
Select American Airlines flight, departing Sat, 2 May from Seattle to Houston, returning Sat, 9 May, priced at ฿23,905 found 2 days ago

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

April is typically the cheapest month to fly

From ฿5,250 - ฿11,323 per traveller.

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 ฿21,815. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Return price
฿21,815
Distance
2994 km
Average flight time
6 hours 26 mins
*Available to Expedia members.