$83 Cheap United flights Houston (IAH) to Seattle (SEA)

View $83 flight on Tue, Aug 12, 2025Opens in a new window

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$83 Cheap United flights Houston (IAH) to Seattle (SEA)

Prices were available within the past 7 days and start at $83 for one-way flights and $165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 12 - Wed, Aug 13
IAH
Houston
SEA
Seattle
$165 Roundtrip, just found
$165
Roundtrip
just found
Select United flight, departing Tue, Aug 12 from Houston to Seattle, returning Wed, Aug 13, priced at $165 just found
United
Sat, Nov 15 - Wed, Nov 19
IAH
Houston
SEA
Seattle
$171 Roundtrip, found 2 hours ago
$171
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 15 from Houston to Seattle, returning Wed, Nov 19, priced at $171 found 2 hours ago
United
Sat, Sep 20 - Mon, Sep 22
IAH
Houston
SEA
Seattle
$182 Roundtrip, found 7 hours ago
$182
Roundtrip
found 7 hours ago
Select United flight, departing Sat, Sep 20 from Houston to Seattle, returning Mon, Sep 22, priced at $182 found 7 hours ago
United
Thu, Sep 4 - Sat, Sep 13
IAH
Houston
SEA
Seattle
$186 Roundtrip, just found
$186
Roundtrip
just found
Select United flight, departing Thu, Sep 4 from Houston to Seattle, returning Sat, Sep 13, priced at $186 just found
United
Mon, Oct 6 - Tue, Oct 7
IAH
Houston
SEA
Seattle
$196 Roundtrip, just found
$196
Roundtrip
just found
Select United flight, departing Mon, Oct 6 from Houston to Seattle, returning Tue, Oct 7, priced at $196 just found
United
Tue, Sep 2 - Wed, Sep 3
IAH
Houston
SEA
Seattle
$197 Roundtrip, just found
$197
Roundtrip
just found
Select United flight, departing Tue, Sep 2 from Houston to Seattle, returning Wed, Sep 3, priced at $197 just found
Flights from Houston (IAH) to Seattle (SEA)
Origin airport
George Bush Intercontinental
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
1871 mi
Average flight time
2 hours 45 mins

Frequently asked questions

How much is a United Airlines flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $165 from IAH to SEA. Affordable one-way options from $83 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAH to SEA with United Airlines?
January is one of the cheapest months to jet off to Seattle with United Airlines. You could also find fantastic deals on one-way and round-trip tickets in February.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
For cheap United Airlines fares from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines operates direct flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA), with 14 departures each week. Just apply the "Nonstop" and "Airline" filters while searching on Expedia to show all direct United Airlines flights to SEA.
How long does it take to fly from IAH to SEA with United Airlines?
From wheels-up to touchdown, a direct United Airlines flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA) takes approximately 5h 1m.
Which day of the week has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
Friday has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA). With 2 daily departures, this is the best day to find something that will suit your schedule.
What is the earliest United Airlines flight from IAH to SEA?
Departing IAH at 9:52AM UTC-6, the first United Airlines flight to SEA lands at 12:53PM UTC-8. Flying early means you'll be less likely to encounter delays or cancellations.* Don't like early starts? The last United Airlines flight from IAH to SEA departs at 7:59PM UTC-6 and touches down at 11:00PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Seattle?
Hop on a United Airlines flight from George Bush Intercontinental Airport (IAH) to Seattle, and you'll most likely come in to Seattle - Tacoma Intl. Airport (SEA). This is the airline's primary hub in this city.
Why fly with United Airlines from IAH to SEA?
With a rewarding loyalty program, United Airlines is a top choice for many travelers journeying from IAH to SEA. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines generally flies Boeing 737-900 planes for flights from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA). This airline also operates the Boeing 737-800 on this route. Keep in mind that aircraft type can change due to operational needs, so the plane you catch could be different when you travel.
Can I change or cancel my United Airlines flight from George Bush Intercontinental Airport (IAH) to Seattle - Tacoma Intl. Airport (SEA)?
Changes are generally free within 24 hours of making your booking, but your airline may charge a fee after that time. For further information about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to make changes without additional costs, tick the "No cancel fee" or "Changes included" filter when planning your next escape.

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