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$110+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SEA
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Seattle/Tacoma Intl are usually found in October or September, booked 70 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 March 24, 2026.

This Expedia deal was found by Cheapflights users on 3/20. 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 5/226:00 am
IAH
-
SEA
1 stop15h 05m
Frontier
Mon 6/111:51 am
SEA
-
IAH
1 stop11h 34m
Frontier
Deal found 3/20$210
This Super.com deal was found by Cheapflights users on 3/23. 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.
Tue 4/219:33 am
IAH
-
SEA
1 stop10h 09m
Frontier
Tue 4/287:12 pm
SEA
-
IAH
1 stop26h 44m
Frontier
Deal found 3/23$211
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Wed 4/153:32 pm
IAH
-
SEA
1 stop19h 55m
Frontier
Mon 4/207:12 pm
SEA
-
IAH
2 stops19h 42m
Frontier
Deal found 3/21$212
This Frontier deal was found by Cheapflights users on 3/20. 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.
Sat 4/46:45 am
IAH
-
SEA
1 stop6h 52m
Frontier
Sun 4/1210:01 pm
SEA
-
IAH
1 stop9h 53m
Frontier
Deal found 3/20$215
This CheapOair deal was found by Cheapflights users on 3/23. 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 4/144:02 pm
IAH
-
SEA
1 stop19h 25m
Frontier
Mon 4/204:20 pm
SEA
-
IAH
1 stop6h 28m
Frontier
Deal found 3/23$216
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:28 pm
IAH
-
SEA
1 stop15h 09m
Frontier
Mon 4/1312:42 pm
SEA
-
IAH
1 stop10h 06m
Frontier
Deal found 3/20$217
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Tue 4/214:02 pm
IAH
-
SEA
1 stop19h 25m
Multiple Airlines
Tue 4/287:12 pm
SEA
-
IAH
2 stops13h 59m
Multiple Airlines
Deal found 3/20$218
This Expedia deal was found by Cheapflights users on 3/20. 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.
Sat 4/410:28 pm
IAH
-
SEA
1 stop15h 09m
Frontier
Thu 5/711:06 am
SEA
-
IAH
1 stop26h 06m
Frontier
Deal found 3/20$220
This Super.com deal was found by Cheapflights users on 3/24. 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.
Fri 5/159:00 pm
IAH
-
SEA
1 stop15h 22m
Frontier
Sun 5/177:50 pm
SEA
-
IAH
1 stop26h 54m
Frontier
Deal found 3/24$221
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 4/1310:28 pm
IAH
-
SEA
1 stop12h 59m
Frontier
Sun 4/197:12 pm
SEA
-
IAH
2 stops10h 47m
Frontier
Deal found 3/23$223
This Frontier deal was found by Cheapflights users on 3/23. 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.
Wed 4/159:33 am
IAH
-
SEA
1 stop11h 09m
Frontier
Sat 4/187:12 pm
SEA
-
IAH
1 stop11h 37m
Frontier
Deal found 3/23$225
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 4/229:57 am
HOU
-
SEA
1 stop7h 54m
American Airlines
Tue 4/2812:59 am
SEA
-
HOU
1 stop6h 27m
American Airlines
Deal found 3/24$299

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 March 24, 2026.

Round-trip from

$210
(Expedia)

One-way from

$110
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$402
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. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 24, 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

Fri 5/1

8:15 pm-12:55 am

1 stop6h 40m

Seattle/Tacoma Intl

Wed 5/6

12:10 pm-11:35 pm

1 stop9h 25m

$359

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Fri 4/24

8:15 pm-11:12 pm

Nonstop4h 57m

Seattle/Tacoma Intl

Mon 4/27

6:30 am-12:51 pm

Nonstop4h 21m

$370

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 4/18

7:45 am-7:01 pm

2 stops13h 16m

Seattle/Tacoma Intl

Tue 4/21

6:00 am-5:42 pm

1 stop9h 42m

$376

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Thu 4/30

4:25 pm-12:05 am

2 stops9h 40m

Seattle/Tacoma Intl

Sat 5/2

5:45 am-3:40 pm

2 stops7h 55m

$387

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Thu 4/23

8:15 pm-12:55 am

1 stop6h 40m

Seattle/Tacoma Intl

Sun 4/26

3:20 pm-11:05 pm

1 stop5h 45m

$390

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Wed 5/6

6:18 pm-10:26 pm

1 stop6h 08m

Seattle/Tacoma Intl

Sat 5/9

8:25 am-5:18 pm

1 stop6h 53m

$400

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Sat 5/9

5:25 am-12:15 pm

1 stop8h 50m

Seattle/Tacoma Intl

Sun 5/17

11:55 pm-12:15 pm

2 stops10h 20m

$417

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Mon 4/20

4:51 pm-7:48 pm

Nonstop4h 57m

Seattle/Tacoma Intl

Tue 4/21

10:56 pm-5:16 am

Nonstop4h 20m

$427

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Tue 6/2

3:10 pm-10:30 pm

2 stops9h 20m

Seattle/Tacoma Intl

Fri 6/5

7:30 am-7:50 pm

2 stops10h 20m

$427

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Thu 4/16

4:25 pm-12:05 am

2 stops9h 40m

Seattle/Tacoma Intl

Mon 4/20

8:00 am-6:35 pm

2 stops8h 35m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 44 resultsSorted by cheapest first
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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

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

Use this chart to determine the optimal time to book a round-trip flight from Houston to Seattle. Price data was last updated on March 13, 2026.

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 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from Houston to Seattle (average of $143). Flying from Houston to Seattle in May is currently the most expensive (average of $217). 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 March 24, 2026.

A simple way to save on the total cost of your ticket is to fly from Houston to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight at noon.

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 March 14, 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.

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 159 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, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

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 March 24, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, 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.
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,104 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Hawaiian Airlines
7.8
Good
2,840 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,471 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,017 reviews
Southwest
8.0
Very good
4,331 reviews

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 8 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 4h 57m. The distance from Houston to Seattle is about 1871 mi. This flight may include one or multiple stops.

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

    Currently priced at $67, Spirit Airlines will fly you from Houston to Seattle and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Frontier - these airlines can fly you to your destination from $128 and $130, respectively. Users have found that Spirit Airlines is 80% cheaper than the other options available to this destination.

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

    $77 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and Spirit Airlines, with prices starting from $85 and $92, respectively.

  • 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, June is the cheapest month in which you can book a flight from Houston to Seattle (average of $143). Flying from Houston to Seattle in May is currently the most expensive (average of $217). 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
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Ellensburg
Tukwila
Fife
Lakewood
Aberdeen
Shoreline
Marysville
Centralia
Federal Way

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 8 airlines flying from Houston to Seattle

Discover the top 8 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$67Average$208FlexibilityNo cancel feeOn-time65%
DeltaCheapest$128Average$251FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$130Average$271FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$148Average$371FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$162Average$421FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$196Average$386FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$222Average$424FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$237Average$430FlexibilityNo cancel feeOn-time63%

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