£127 Cheap Flights from Houston (IAH) to Seattle (SEA)

View £127 flight on Wed, 10 Jun 2026Opens in a new window

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 £127 for one-way flights and £264 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 20 May - Wed, 3 Jun
IAH
Houston
SEA
Seattle
£264 Return, found 1 day ago
£264
Return
found 1 day ago
Select Delta flight, departing Wed, 20 May from Houston to Seattle, returning Wed, 3 Jun, priced at £264 found 1 day ago
Alaska Airlines
Thu, 13 Aug - Tue, 18 Aug
IAH
Houston
SEA
Seattle
£268 Return, found 2 days ago
£268
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 13 Aug from Houston to Seattle, returning Tue, 18 Aug, priced at £268 found 2 days ago
Alaska Airlines
Thu, 14 May - Wed, 20 May
IAH
Houston
SEA
Seattle
£271 Return, found 1 day ago
£271
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 14 May from Houston to Seattle, returning Wed, 20 May, priced at £271 found 1 day ago
Alaska Airlines
Thu, 13 Aug - Tue, 18 Aug
IAH
Houston
SEA
Seattle
£275 Return, found 2 days ago
£275
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 13 Aug from Houston to Seattle, returning Tue, 18 Aug, priced at £275 found 2 days ago
Delta
Wed, 27 May - Sat, 6 Jun
IAH
Houston
SEA
Seattle
£279 Return, found 1 day ago
£279
Return
found 1 day ago
Select Delta flight, departing Wed, 27 May from Houston to Seattle, returning Sat, 6 Jun, priced at £279 found 1 day ago
Delta
Fri, 15 May - Wed, 3 Jun
IAH
Houston
SEA
Seattle
£286 Return, found 1 day ago
£286
Return
found 1 day ago
Select Delta flight, departing Fri, 15 May from Houston to Seattle, returning Wed, 3 Jun, priced at £286 found 1 day ago
Alaska Airlines
Thu, 14 May - Wed, 20 May
IAH
Houston
SEA
Seattle
£294 Return, found 1 day ago
£294
Return
found 1 day ago
Select Alaska Airlines flight, departing Thu, 14 May from Houston to Seattle, returning Wed, 20 May, priced at £294 found 1 day ago
JetBlue Airways
Sat, 4 Jul - Wed, 15 Jul
IAH
Houston
SEA
Seattle
£316 Return, found 1 day ago
£316
Return
found 1 day ago
Select JetBlue Airways flight, departing Sat, 4 Jul from Houston to Seattle, returning Wed, 15 Jul, priced at £316 found 1 day ago
United
Sat, 30 May - Fri, 19 Jun
IAH
Houston
SEA
Seattle
£371 Return, found 1 day ago
£371
Return
found 1 day ago
Select United flight, departing Sat, 30 May from Houston to Seattle, returning Fri, 19 Jun, priced at £371 found 1 day ago
American Airlines
Sun, 3 May - Mon, 18 May
IAH
Houston
SEA
Seattle
£490 Return, found 1 day ago
£490
Return
found 1 day ago
Select American Airlines flight, departing Sun, 3 May from Houston to Seattle, returning Mon, 18 May, priced at £490 found 1 day ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from £342
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from £342

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

April is typically the cheapest month to fly

From £121 - £217 per traveller.

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 £264. 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 cancelled 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 kilometres. 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.

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £360 and £1,513 and return flights often range between £540 and £2,041. 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 the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) 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 of approximately £238. This is about 21% lower than the average price throughout the year. 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.)?
Enter IAH to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.), 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 airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveller to traveller. If you like to fly early, UA offers early morning flights. If price is the most important factor, AS typically offers the lowest fares. UA offers the most daily flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) is January. This month offers a great balance, as it's both one of the cheapest and most popular times to travel, with average return flights around £238. This means you'll likely find plenty of flight options to suit your schedule while also getting a good deal. September is another affordable option, though it might not have the same high volume of flights as January. This information is based on booking data from the past year.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 5 nonstop flights per day from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.). For even more choice, look at flights that include layovers, as there are around 132 connecting flights per day. Some common connection points include Dallas-Fort Worth Intl. (DFW), O'Hare Intl. (ORD), and Denver Intl. (DEN).
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 at approximately 12:55 AM local time, operated by United Airlines. This is a seasonal service active in November. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from George Bush Intercontinental (IAH) to Seattle - Tacoma Intl. (SEA) on a Friday, with around 86 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Alaska Airlines. Fridays offer notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 6am to 9am. About 35% of passengers prefer this time. Many major carriers, including Alaska Airlines, American Airlines and Delta Air Lines, offer flights during this window. This timing works well because you can get an early start to your travel day and arrive in Seattle with plenty of time to settle in.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying nonstop from IAH to SEA takes around 4 hours 50 minutes, with the route covering approximately 1,872 miles. Flights with a layover typically take 4 hours 10 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for IAH to 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 from George Bush Intercontinental (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), 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-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Seattle, WA (SEA-Seattle - Tacoma Intl.) 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, American Airlines, Delta, JetBlue Airways, United
Return price
£264
Distance
2994 km
Average flight time
3 hours 21 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 £264 and range up to £490.  

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 May, 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.