Cheap Flights from Houston (IAH) to Seattle (SEA) from HK$1,091~

View HK$1,091 flight on Thu, 18 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$1,091 for one-way flights and HK$2,417 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,417 Return, found 5 days ago
HK$2,417
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,417 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,459 Return, found 5 days ago
HK$2,459
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,459 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,536 Return, found 5 days ago
HK$2,536
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,536 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,665 Return, found 5 days ago
HK$2,665
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,665 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,674 Return, found 5 days ago
HK$2,674
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,674 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,698 Return, found 5 days ago
HK$2,698
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,698 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,706 Return, found 5 days ago
HK$2,706
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,706 found 5 days ago
Delta
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,771 Return, found 5 days ago
HK$2,771
Return
found 5 days ago
Select Delta flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,771 found 5 days ago
United
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,783 Return, found 5 days ago
HK$2,783
Return
found 5 days ago
Select United flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,783 found 5 days ago
American Airlines
Fri, 22 Aug - Fri, 29 Aug
IAH
Houston
SEA
Seattle
HK$2,890 Return, found 5 days ago
HK$2,890
Return
found 5 days ago
Select American Airlines flight, departing Fri, 22 Aug from Houston to Seattle, returning Fri, 29 Aug, priced at HK$2,890 found 5 days ago

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

August is typically the cheapest month to fly

From HK$857 - HK$1,996 per traveller.

Graph displaying average flight prices per month

Houston to Seattle route information
Origin airport
George Bush Intercontinental
Destination airport
Seattle - Tacoma Intl.
Return price
HK$2,417
Distance
2994 km
Average flight time
2 hours 45 mins

Flights from Houston to Seattle

Book cheap flights from Houston (IAH) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Houston (IAH) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be 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 Houston (IAH) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$1,091 now!

 

Frequently asked questions

How much is a flight from Houston Airport to Seattle - Tacoma Intl. Airport (SEA)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey from George Bush Intercontinental Airport (IAH) to SEA was HK$2,417. Cheap tickets don't last long, 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 Houston Airport to SEA?
The majority of flights can be canceled online, but every air carrier has a different set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from IAH to Sea-Tac 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 Houston Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
It takes approximately 4 hours and 58 minutes to fly from Houston Airport (IAH) to Sea-Tac Airport (SEA). But with some TV shows and a few interesting magazines, the hours will pass by quicker.
How far is the flight from Houston Airport to Sea-Tac Airport?
The flying distance between George Bush Intercontinental Airport (IAH) (IAH) and Sea-Tac Airport (SEA) is 3,000 kilometers. Work your way through your travel song playlist or finish off your latest read and the journey will zip by.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to SEA?
One airline that flies from IAH to Sea-Tac Airport is United Airlines (UA). It offers 91 flights monthly. Alaska Airlines (AS) is also worth a look. It offers 60 flights per month. Between these two airlines, you'll be able to find a great deal from Houston to SeaTac.
Are IAH to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an amazing last-minute deal from IAH to Sea-Tac Airport, but it's also possible to miss out altogether! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can be sure you're always seeing the latest offers.

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