HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$199+ Cheap flights from Houston 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SEA
Jul 21 — Jul 281
Tue 7/21
Tue 7/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Houston to Seattle/Tacoma Intl are usually found in October or September, booked 52 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Houston to Seattle

Cheapest flights from Houston to Seattle
Explore the most affordable flight options available from Houston to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.

This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:10 am
IAH
-
SEA
1 stop15h 28m
Frontier
Thu 7/2312:35 pm
SEA
-
IAH
1 stop6h 39m
Frontier
Deal found 6/18$341
This Frontier deal was found by Cheapflights users on 6/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:30 am
IAH
-
SEA
1 stop6h 50m
Frontier
Fri 8/1410:34 am
SEA
-
IAH
1 stop11h 22m
Frontier
Deal found 6/17$342
This Frontier deal was found by Cheapflights users on 6/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:09 pm
IAH
-
SEA
1 stop13h 08m
Frontier
Fri 7/178:53 pm
SEA
-
IAH
1 stop13h 29m
Frontier
Deal found 6/20$343
This CheapOair deal was found by Cheapflights users on 6/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:14 pm
IAH
-
SEA
1 stop17h 03m
Frontier
Fri 7/178:53 pm
SEA
-
IAH
1 stop13h 29m
Frontier
Deal found 6/20$344
This Southwest deal was found by Cheapflights users on 6/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:30 am
HOU
-
SEA
Nonstop4h 45m
Southwest
Wed 9/238:55 am
SEA
-
HOU
Nonstop4h 15m
Southwest
Deal found 6/19$345
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Sat 7/256:14 pm
IAH
-
SEA
1 stop17h 03m
Frontier
Fri 7/317:06 pm
SEA
-
IAH
2 stops12h 57m
Frontier
Deal found 6/20$345
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Mon 8/246:30 am
IAH
-
SEA
1 stop7h 50m
Multiple Airlines
Wed 8/2610:48 am
SEA
-
IAH
Nonstop4h 25m
Multiple Airlines
Deal found 6/19$346
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Mon 8/106:10 am
IAH
-
SEA
1 stop15h 28m
Frontier
Wed 8/198:53 pm
SEA
-
IAH
2 stops10h 58m
Frontier
Deal found 6/21$347
This Expedia deal was found by Cheapflights users on 6/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:05 pm
IAH
-
SEA
1 stop8h 56m
Multiple Airlines
Sat 10/105:32 pm
SEA
-
IAH
Nonstop4h 27m
Multiple Airlines
Deal found 6/20$348
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Mon 7/66:30 am
IAH
-
SEA
1 stop6h 50m
Frontier
Wed 7/228:13 pm
SEA
-
IAH
1 stop14h 09m
Frontier
Deal found 6/19$349
This Frontier deal was found by Cheapflights users on 6/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:30 am
IAH
-
SEA
1 stop6h 50m
Frontier
Sat 8/1510:34 am
SEA
-
IAH
1 stop11h 22m
Frontier
Deal found 6/16$350
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Mon 6/296:02 am
IAH
-
SEA
Nonstop4h 38m
Multiple Airlines
Fri 7/1012:35 pm
SEA
-
IAH
1 stop6h 39m
Multiple Airlines
Deal found 6/16$351

Find flight deals from Houston to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 21, 2026.

Round-trip from

$341
(Super.com)

One-way from

$199
(Delta)

Popular in

June

Cheapest in

October

Average price

$470
From Houston to Seattle/Tacoma Intl
Search Deals
One-way flight from Houston to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 21, 2026.
Use the filters below to find and compare flights from Houston to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Mon 8/10

4:20 pm-10:55 pm

1 stop8h 35m

Seattle/Tacoma Intl

Wed 8/19

1:40 pm-9:35 pm

1 stop5h 55m

$381

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Tue 8/18

11:50 am-9:08 pm

1 stop11h 18m

Seattle/Tacoma Intl

Wed 8/19

10:13 pm-10:59 am

1 stop10h 46m

$391

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 12/10

6:30 am-2:47 pm

1 stop10h 17m

Seattle/Tacoma Intl

Mon 12/14

6:05 am-6:17 pm

1 stop10h 12m

$397

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 8/20

9:57 am-12:48 pm

Nonstop4h 51m

Seattle/Tacoma Intl

Sat 8/22

5:00 pm-11:24 pm

Nonstop4h 24m

$417

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Wed 9/2

2:34 pm-5:19 pm

Nonstop4h 45m

Seattle/Tacoma Intl

Sun 9/13

10:41 am-5:13 pm

Nonstop4h 32m

$417

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Tue 9/1

2:34 pm-5:19 pm

Nonstop4h 45m

Seattle/Tacoma Intl

Sun 9/13

10:41 am-5:13 pm

Nonstop4h 32m

$417

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Wed 8/19

11:20 am-5:30 pm

2 stops8h 10m

Seattle/Tacoma Intl

Thu 8/27

9:10 am-5:50 pm

1 stop6h 40m

$421

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Tue 7/14

12:50 pm-6:50 pm

2 stops8h 00m

Seattle/Tacoma Intl

Thu 7/23

7:30 am-7:50 pm

2 stops10h 20m

$431

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 9/3

4:20 pm-7:08 pm

Nonstop4h 48m

Seattle/Tacoma Intl

Tue 9/8

11:59 pm-6:17 am

Nonstop4h 18m

$456

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 11/19

6:30 am-2:47 pm

1 stop10h 17m

Seattle/Tacoma Intl

Sun 11/22

1:30 pm-9:36 pm

1 stop6h 06m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 45 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from Houston to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Houston 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 to Seattle

What is the cheapest month to book a flight from Houston to Seattle?

Currently, April is the cheapest month in which you can book a flight from Houston to Seattle (average of $88). Flying from Houston to Seattle in July is currently the most expensive (average of $599). 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 HOU to SEA?

Find hourly flight availability from Houston 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 21, 2026.

A simple way to save on the total cost of your ticket is to fly from Houston to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Houston to Seattle?

How often are flights from Houston to Seattle delayed?

About 16% of weekly flights between Houston and Seattle have experienced delays in the past year, with the average delay time being 161 minutes.

What is the most punctual flight time for Houston to Seattle flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Houston to Seattle flights?

Over the last year, Alaska Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

How far ahead should I book a flight from Houston to Seattle?

The price you pay for your flight from Houston to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest day to fly from Houston to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Houston to Seattle. Price data was last updated on June 13, 2026.

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

The best insider tips for Houston to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Seattle trip
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

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 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 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 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

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 21, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andHawaiian Airlines from Houston to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,560 reviews
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Southwest
7.9
Good
4,242 reviews
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Hawaiian Airlines
7.8
Good
2,827 reviews
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
United Airlines
7.4
Good
9,874 reviews
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Frontier
5.6
Fair
2,875 reviews
Alaska Airlines
7.9
Good
12,560 reviews

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from Houston 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?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Houston. On average, Seattle/Tacoma Intl has 0 inbound flights from Houston per day from 7 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Houston to Seattle?

    Departing from Houston to Seattle will take you 8h 35m. The distance from Houston to Seattle is about 1891 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Houston to Seattle round-trip?

    Currently priced at $115, Delta will fly you from Houston to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Hawaiian Airlines - these airlines can fly you to your destination from $126 and $148, respectively. Users have found that Delta is 69% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Houston to Seattle one-way?

    $84 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $92 and $118, respectively.

  • What are the cheapest flights from Houston to Seattle?

    While on average a flight from Houston to Seattle is generally $441, our data shows the cheapest flight currently is $228. When looking at the most popular route, (Houston Hobby - Seattle/Tacoma Intl), you can expect to pay $268 for that flight.

  • Can I find deals for flights from Houston to Seattle that include hotel bookings?

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

  • How can I find direct flights from Houston to Seattle?

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

  • Can I find deals for business class flights from Houston to Seattle?

    Yes. Cheapflights offers flight deals from Houston 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 to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Houston to Seattle (average of $88). Flying from Houston to Seattle in July is currently the most expensive (average of $599). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Houston to Seattle

Discover the top 7 airlines that operate flights from Houston 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 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$115Average$266FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$126Average$279FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$148Average$332FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$184Average$576FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$200Average$434FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$241Average$457FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$490FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.