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$121+ Cheap flights from George Bush Intcntl (IAH) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Seattle/Tacoma Intl are usually found in September or February, booked 51 days in advance, depart on a Wednesday or Friday and return on a Thursday

Cheap flight deals from George Bush Intcntl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$202
(Cheapflightsfares)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$449

Good round-trip deal

$380 or less

Good one-way deal

$205 or less
From Houston George Bush Intcntl to Seattle/Tacoma Intl
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One-way flight from Houston George Bush Intcntl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Seattle/Tacoma Intl.
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Find flight deals from George Bush Intcntl to Seattle

Cheapest flights from George Bush Intcntl to Seattle
Explore the most affordable flight options available from George Bush Intcntl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/196:14 amIAH - SEA
1 stop12h 11mSpirit Airlines
Mon 7/285:30 pmSEA - IAH
1 stop10h 25mSpirit Airlines
Deal found 6/11$202
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:14 amIAH - SEA
1 stop12h 11mMultiple Airlines
Sat 8/2311:59 pmSEA - IAH
Nonstop4h 25mMultiple Airlines
Deal found 6/10$241
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:00 amIAH - SEA
1 stop15h 39mFrontier
Mon 9/2912:58 pmSEA - IAH
1 stop6h 44mFrontier
Deal found 6/10$245
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:23 pmIAH - SEA
Nonstop4h 42mHawaiian Airlines
Wed 9/105:40 pmSEA - IAH
Nonstop4h 26mHawaiian Airlines
Deal found 6/10$257
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/410:14 amIAH - SEA
1 stop10h 44mAmerican Airlines
Wed 11/1211:51 amSEA - IAH
1 stop9h 52mAmerican Airlines
Deal found 6/11$261
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2812:51 pmIAH - SEA
1 stop11h 14mDelta
Fri 9/511:55 pmSEA - IAH
1 stop7h 55mDelta
Deal found 6/9$277
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/94:20 pmIAH - SEA
1 stop7h 56mUnited Airlines
Sat 8/165:00 amSEA - IAH
Nonstop4h 19mUnited Airlines
Deal found 6/12$295
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:00 amIAH - SEA
Nonstop4h 42mAlaska Airlines
Fri 9/511:59 pmSEA - IAH
Nonstop4h 25mAlaska Airlines
Deal found 6/11$302

Cheapflights Fare Finder

Customize your flight search to find flights from George Bush Intcntl to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Seattle that are best for you.

Fly from

George Bush Intcntl

Fly to

Seattle

Route

Depart

Return

Price

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 7/19

6:14 am-4:25 pm

1 stop12h 11m

Seattle/Tacoma Intl

Mon 7/28

5:30 pm-5:55 am

1 stop10h 25m

$202

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Wed 8/6

6:14 am-4:25 pm

1 stop12h 11m

Seattle/Tacoma Intl

Sat 8/23

11:59 pm-6:24 am

Nonstop4h 25m

$241

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sun 9/21

6:00 am-7:39 pm

1 stop15h 39m

Seattle/Tacoma Intl

Mon 9/29

12:58 pm-9:42 pm

1 stop6h 44m

$245

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Tue 8/12

9:00 am-11:41 am

Nonstop4h 41m

Seattle/Tacoma Intl

Mon 8/18

11:59 pm-6:20 am

Nonstop4h 21m

$257

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Tue 11/4

10:45 am-6:58 pm

1 stop10h 13m

Seattle/Tacoma Intl

Tue 11/11

1:33 am-1:33 pm

1 stop10h 00m

$261

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Mon 8/4

6:00 am-8:40 am

Nonstop4h 40m

Seattle/Tacoma Intl

Tue 8/12

11:59 pm-6:20 am

Nonstop4h 21m

$265

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 8/28

12:51 pm-10:05 pm

1 stop11h 14m

Seattle/Tacoma Intl

Wed 9/10

12:15 pm-11:33 pm

1 stop9h 18m

$277

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 8/9

4:20 pm-10:16 pm

1 stop7h 56m

Seattle/Tacoma Intl

Sat 8/16

5:00 am-11:19 am

Nonstop4h 19m

$295

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 8/23

7:00 am-11:45 am

1 stop6h 45m

$121

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Wed 9/10

2:49 pm-3:53 pm

1 stop27h 04m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 16 results
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The best insider tips for Houston George Bush Intcntl Airport to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Seattle trip
Airlines
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on medium-haul flights.


Alaska's Wi-Fi is a bargain, perfect for getting work done on longer flights.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on medium-haul flights.


United's Polaris Lounge in Houston offers showers and dining, enhancing pre-flight comfort.

Read more about United Airlinesby Harriet Baskas
Airports
IAH

Check the IAH website for security wait times to ensure a smooth departure. Both standard and TSA PreCheck lines are available.

Read more about IAHby Evie Carrick
SEA

Use the Link light rail from SEA to downtown Seattle. It's affordable, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from George Bush Intcntl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Seattle

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Seattle. Price data was last updated on June 9, 2025.

The best time to book flights from Houston George Bush Intcntl Airport to Seattle is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Seattle (average of $238). Flying from Houston George Bush Intcntl Airport to Seattle in July is currently the most expensive (average of $391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to SEA?

Find hourly flight availability from George Bush Intcntl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Seattle in the morning. Doing so could potentially save you 10% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Seattle. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Seattle flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Houston George Bush Intcntl Airport to Seattle

Explore weekly flight availability from George Bush Intcntl to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from IAH to SEA are scheduled on a Thursday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Houston to Seattle. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Houston George Bush Intcntl?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Houston George Bush Intcntl. On average, Seattle/Tacoma Intl has 14 inbound flights from Houston George Bush Intcntl per day from 7 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Seattle round-trip?

    Currently priced at $202, Spirit Airlines will fly you from Houston George Bush Intcntl Airport to Seattle and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Hawaiian Airlines - these airlines can fly you to your destination from $257 and $265, respectively. Users have found that Spirit Airlines is 48% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Seattle one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $121. Spirit Airlines flights start at $125 while deals on Alaska Airlines start at $129 one-way.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Seattle?

    Before booking your flight to Seattle from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Finnair (100%), Japan Airlines (89%), Emirates( 78%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Seattle?

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Houston George Bush Intcntl - Seattle/Tacoma Intl) can be booked for $200 on average our data indicates $1,029 when flying from Houston George Bush Intcntl Airport to Seattle.

  • Can I find deals for flights from George Bush Intcntl to Seattle that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Seattle.

  • Can I find deals for business class flights from George Bush Intcntl to Seattle?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Seattle (average of $238). Flying from Houston George Bush Intcntl Airport to Seattle in July is currently the most expensive (average of $391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from George Bush Intcntl to Seattle

Discover the top 7 airlines that operate flights from George Bush Intcntl to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$98Average$196FlexibilityNo cancel feeOn-time65%
FrontierCheapest$130Average$243FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$276FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$203Average$387FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$236Average$388FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$258Average$461FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$276Average$386FlexibilityNo cancel feeOn-time71%

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