$119 Cheap United flights Seattle (SEA) to Houston (IAH)

View $119 flight on Wed, Dec 10, 2025Opens in a new window

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$119 Cheap United flights Seattle (SEA) to Houston (IAH)

Prices were available within the past 7 days and start at $119 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
IAH
Houston
$237 Roundtrip, just found
$237
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Houston, returning Tue, Dec 16, priced at $237 just found
United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
IAH
Houston
$247 Roundtrip, just found
$247
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Houston, returning Tue, Dec 16, priced at $247 just found
United
Wed, Nov 12 - Tue, Nov 18
SEA
Seattle
IAH
Houston
$252 Roundtrip, just found
$252
Roundtrip
just found
Select United flight, departing Wed, Nov 12 from Seattle to Houston, returning Tue, Nov 18, priced at $252 just found
Flights from Seattle (SEA) to Houston (IAH)
Origin airport
Seattle - Tacoma Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
1871 mi
Average flight time
6 hours 25 mins

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
You'll find affordable round-trip United Airlines flights from $237 from SEA to IAH by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $119 for a one-way trip.**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 SEA to IAH with United Airlines?
United Airlines flights to Houston are typically cheaper in the low-season months of November and February. Whether you need a one-way or round-trip ticket, you could land a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) with United Airlines?
Search for cheap United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) one to three months prior to your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Book a seat on one of United Airlines's 14 direct weekly flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). To see your options, enter your travel dates, origin and destination and hit search. Next, apply the "Nonstop" and "Airline" filters.
How long does it take to fly from SEA to IAH with United Airlines?
On average, it takes 4h 21m to fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH) with United Airlines.
Which day of the week has the most United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
If it's flexibility you're after, Friday offers the most choice for United Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). Take your pick of 2 different departures.
What is the earliest United Airlines flight from SEA to IAH?
Leaving SEA at 7:00AM UTC-8, the first United Airlines flight to IAH lands at 1:23PM UTC-6. Flying early means you'll be less likely to encounter cancellations or delays.* After something later? The last United Airlines flight from SEA to IAH departs at 1:59PM UTC-8 and touches down at 8:20PM UTC-6.*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 Houston?
Take a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Houston, and you'll probably come in to George Bush Intercontinental Airport (IAH). This is the airline's primary hub here.
Why fly with United Airlines from SEA to IAH?
Journey from SEA to IAH with United Airlines and look forward to a range of perks starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*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 Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
United Airlines generally flies Boeing 737-900 planes for flights from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH). This airline also operates the Boeing 737-800 on this route. Bear in mind that aircraft type can vary due to operational needs, so the plane you catch might be different on the day you travel.
Can I change or cancel my United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to George Bush Intercontinental Airport (IAH)?
Depending on the ticket type you purchased, a fee will generally apply if you change or cancel your flight more than 24 hours after confirmation. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you look for flights. To learn more about canceling or changing your reservation, head to "Trips," select your flight and tick "Manage Booking."

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