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£123 Cheap Flights from Houston (IAH) to Seattle (SEA)

View £123 flight on Sun, 6 Sept 2026Opens in a new window

Flight 1

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

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

Prices were available within the past 7 days and start at £123 for one-way flights and £254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, 1 Sept - Sat, 5 Sept
IAH
Houston
SEA
Seattle
£254 Return, found 1 day ago
£254
Return
found 1 day ago
Select JetBlue Airways flight, departing Tue, 1 Sept from Houston to Seattle, returning Sat, 5 Sept, priced at £254 found 1 day ago
Alaska Airlines
Fri, 11 Sept - Sat, 19 Sept
IAH
Houston
SEA
Seattle
£257 Return, found 5 days ago
£257
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 11 Sept from Houston to Seattle, returning Sat, 19 Sept, priced at £257 found 5 days ago
JetBlue Airways
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£258 Return, found 5 days ago
£258
Return
found 5 days ago
Select JetBlue Airways flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £258 found 5 days ago
JetBlue Airways
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£259 Return, found 5 days ago
£259
Return
found 5 days ago
Select JetBlue Airways flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £259 found 5 days ago
Alaska Airlines
Tue, 1 Sept - Sat, 5 Sept
IAH
Houston
SEA
Seattle
£263 Return, found 1 day ago
£263
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 1 Sept from Houston to Seattle, returning Sat, 5 Sept, priced at £263 found 1 day ago
Alaska Airlines
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£269 Return, found 5 days ago
£269
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £269 found 5 days ago
JetBlue Airways
Mon, 31 Aug - Wed, 2 Sept
IAH
Houston
SEA
Seattle
£270 Return, found 4 days ago
£270
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Houston to Seattle, returning Wed, 2 Sept, priced at £270 found 4 days ago
American Airlines
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£290 Return, found 5 days ago
£290
Return
found 5 days ago
Select American Airlines flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £290 found 5 days ago
Delta
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£300 Return, found 5 days ago
£300
Return
found 5 days ago
Select Delta flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £300 found 5 days ago
United
Sat, 12 Sept - Mon, 21 Sept
IAH
Houston
SEA
Seattle
£367 Return, found 5 days ago
£367
Return
found 5 days ago
Select United flight, departing Sat, 12 Sept from Houston to Seattle, returning Mon, 21 Sept, priced at £367 found 5 days ago

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

February is typically the cheapest month to fly

From £126 - £207 per traveller.

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find one-way and return flights from IAH to SEA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IAH to SEA ticket fares go up or down.
What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
January is typically the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares around £238. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. Other cheap months to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include September and October.
Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are 3 airlines offering direct flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Here are some of the top carriers:
  • United operates 39 direct flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
  • Qatar Airways operates 14 direct flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
  • Japan Airlines operates 7 direct flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
What is the cheapest airline that flies from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
JetBlue Airways offers one of the cheapest connecting return flights on this route, with tickets starting from around £226. United is one of the cheapest airlines offering nonstop return flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with tickets starting from around £256 for flights that can be booked for departure within the next year. These prices are for economy/coach class per adult. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Houston, TX (IAH) to Seattle, WA (SEA)?
To find a cheap flight from Houston, TX (IAH) to Seattle, WA (SEA), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are typically January and September, with average return flight prices around £238. These months can be a great option if you're looking for more budget-friendly travel, as they often fall outside peak holiday seasons, allowing airlines to offer lower fares.
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:15 AM local time. This flight is operated by Alaska Airlines. This is a seasonal service, active only in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A non-stop flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically takes around 4 hours 48 minutes. This route covers a distance of approximately 3,013 kilometers. If you opt for a flight with one stop, your travel time will be longer, usually around 9 hours. Flights with two or more stops generally take about 10 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your journey.
Can you fly business or first class from Houston, TX (IAH) to Seattle, WA (SEA)?
Select the "Business class" and "First class" filters when looking for Houston, TX (IAH) to Seattle, WA (SEA) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Houston, TX (IAH)?
If you're planning to travel to Seattle from George Bush Intercontinental (IAH), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), or Dallas-Fort Worth Intl. (DFW) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH) to Seattle, WA (SEA)?
If you booked your Houston, TX (IAH) to Seattle, WA (SEA) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£253
Distance
2994 km
Average flight time
3 hours 7 mins

Book with confidence

Compare flights from Houston to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Houston to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from George Bush Intercontinental to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from George Bush Intercontinental (IAH) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Houston to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from George Bush Intercontinental to Seattle - Tacoma Intl. start at just £254 and range up to £367.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Houston and Seattle
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Houston to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from George Bush Intercontinental to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Houston to Seattle easily and book with confidence

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*Available to Expedia members.