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$129+ Cheap flights from Seattle (SEA) to Houston

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HOU
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Houston are usually found in September or August, booked 52 days in advance, depart on a Wednesday or Sunday and return on a Monday

Cheap flight deals from Seattle to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Houston (HO1). 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 August 13, 2025.

Round-trip from

$205
(Southwest)

One-way from

$129
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$321
From Seattle/Tacoma Intl to Houston
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One-way flight from Seattle/Tacoma Intl to Houston
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Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Houston

Cheapest flights from Seattle to Houston
Explore the most affordable flight options available from Seattle to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:45 pmSEA - HOU
Nonstop4h 15mSouthwest
Tue 9/99:40 amHOU - SEA
2 stops11h 00mSouthwest
Deal found 8/11$205
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 9/85:40 pmSEA - IAH
Nonstop4h 26mAlaska Airlines
Sun 9/146:00 amIAH - SEA
Nonstop4h 47mAlaska Airlines
Deal found 8/11$207
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:45 pmSEA - HOU
Nonstop4h 15mSouthwest
Sun 9/76:50 pmHOU - SEA
Nonstop4h 40mSouthwest
Deal found 8/12$207
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:00 amSEA - IAH
1 stop12h 14mMultiple Airlines
Tue 9/237:28 pmIAH - SEA
Nonstop4h 49mMultiple Airlines
Deal found 8/11$208
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:35 amSEA - HOU
1 stop5h 45mSouthwest
Thu 10/237:05 pmHOU - SEA
1 stop7h 45mSouthwest
Deal found 8/12$209
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amSEA - IAH
1 stop9h 51mDelta
Wed 9/104:00 pmIAH - SEA
1 stop8h 25mDelta
Deal found 8/12$210
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:10 pmSEA - HOU
1 stop8h 08mDelta
Wed 11/125:35 pmHOU - SEA
1 stop8h 39mDelta
Deal found 8/11$210
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:59 pmSEA - IAH
Nonstop4h 15mUnited Airlines
Fri 10/3112:50 pmIAH - SEA
1 stop7h 15mUnited Airlines
Deal found 8/10$213
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:47 pmSEA - IAH
Nonstop4h 23mMultiple Airlines
Thu 10/166:00 amIAH - SEA
1 stop8h 07mMultiple Airlines
Deal found 8/11$214
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 11/75:30 pmSEA - IAH
Nonstop4h 22mAlaska Airlines
Wed 11/127:26 pmIAH - SEA
Nonstop4h 58mAlaska Airlines
Deal found 8/11$215
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:47 pmSEA - IAH
Nonstop4h 23mHawaiian Airlines
Sun 10/126:00 amIAH - SEA
Nonstop4h 44mHawaiian Airlines
Deal found 8/12$216
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/811:58 pmSEA - IAH
Nonstop4h 15mUnited Airlines
Mon 9/156:12 pmIAH - SEA
1 stop6h 47mUnited Airlines
Deal found 8/11$217

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Houston 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 August 13, 2025.
Use the filters below to find and compare flights from Seattle to Houston that are best for you.

Fly from

Seattle

Fly to

Houston

Route

Depart

Return

Price

SeattleHouston

SEA - HOU

SEAHOU

Seattle/Tacoma Intl

Thu 9/4

10:45 pm-5:00 am

Nonstop4h 15m

Houston Hobby

Tue 9/23

9:40 am-6:10 pm

2 stops10h 30m

$205

SeattleHouston

SEA - HOU

SEAHOU

Seattle/Tacoma Intl

Mon 9/8

10:45 pm-5:00 am

Nonstop4h 15m

Houston Hobby

Wed 9/10

9:40 am-6:10 pm

2 stops10h 30m

$205

SeattleHouston

SEA - HOU

SEAHOU

Seattle/Tacoma Intl

Thu 9/4

10:45 pm-5:00 am

Nonstop4h 15m

Houston Hobby

Tue 9/9

9:40 am-6:10 pm

2 stops10h 30m

$205

SeattleHouston

SEA - HOU

SEAHOU

Seattle/Tacoma Intl

Fri 9/5

10:45 pm-5:00 am

Nonstop4h 15m

Houston Hobby

Tue 9/9

9:40 am-6:40 pm

2 stops11h 00m

$205

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Thu 9/18

5:40 pm-12:06 am

Nonstop4h 26m

Houston George Bush Intcntl

Fri 9/19

7:28 pm-10:17 pm

Nonstop4h 49m

$207

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Fri 10/3

5:40 pm-12:06 am

Nonstop4h 26m

Houston George Bush Intcntl

Sun 10/5

6:00 am-8:44 am

Nonstop4h 44m

$207

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Sun 11/9

5:30 pm-11:52 pm

Nonstop4h 22m

Houston George Bush Intcntl

Tue 11/11

7:26 pm-10:24 pm

Nonstop4h 58m

$207

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Fri 9/19

5:40 pm-12:06 am

Nonstop4h 26m

Houston George Bush Intcntl

Sun 9/21

8:00 am-10:45 am

Nonstop4h 45m

$207

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Thu 9/4

11:49 am-6:28 pm

Nonstop4h 39m

Houston George Bush Intcntl

Tue 9/9

7:28 pm-10:17 pm

Nonstop4h 49m

$207

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Mon 11/3

5:30 pm-11:52 pm

Nonstop4h 22m

Houston George Bush Intcntl

Fri 11/7

7:00 am-9:54 am

Nonstop4h 54m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 42 results
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The best insider tips for Seattle to Houston 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 Seattle to Houston trip
Airlines
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, ideal for added comfort.


Alaska's Wi-Fi is a flat fee, great for business travelers needing to work onboard.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

United's Economy Plus offers extra legroom, ideal for comfort without a premium price.


United's Polaris Lounges offer showers and dining, perfect for premium travelers.

Read more about United Airlinesby Harriet Baskas
Airports
SEA

Use SEA Spot Saver to book security screening appointments in advance, reducing wait times for non-expedited passengers. Reserve spots up to five days before your flight.

Read more about SEAby Brandon Schultz
IAH

For a quick ride from IAH to downtown Houston, use Uber or Lyft from Terminals A, B, or C. Expect a 25-minute journey by car.

Read more about IAHby Evie Carrick
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 Seattle to Houston

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Houston. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Houston, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Houston (average of $230). Flying from Seattle to Houston in March is currently the most expensive (average of $331). 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 SEA to HOU?

Find hourly flight availability from Seattle to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

When flying from Seattle to Houston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 42% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Houston. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated August 13, 2025.
Read reviews from past customers who have flown Alaska Airlines, Hawaiian Airlines, and United Airlines from Seattle to Houston. Users can see the overall rating for each airline as well as how each is rated 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

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,655 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,920 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Spirit Airlines
6.3
Okay
8,048 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,221 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Houston. 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 from for flights from Seattle to Houston?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Houston from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Houston should be relatively easy as there are 0 daily outbound flights to Houston from 8 different airlines.

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

    Southwest, at $205, was found to be the cheapest airline from Seattle to Houston. An alternate airline flying to your destination would be Alaska Airlines. These flights start at 46% lower than the current average price 3 months from now.

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

    $129 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from $129 and $130, respectively.

  • What are the cheapest flights from Seattle to Houston?

    While on average a flight from Seattle to Houston is generally $230, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Seattle/Tacoma Intl - Houston Hobby), you can expect to pay $173 for that flight.

  • Where are the most common layover locations when flying from Seattle to Houston?

    Seattle to Houston flights have a layover in Dallas most often.

  • What are some popular things to do or see while on a layover in Dallas?

    If you're on a layover in Dallas and looking for things to do, consider visiting American Airlines Center, Dallas World Aquarium, or Dos Equis Pavilion. American Airlines Center, Dallas World Aquarium and Dos Equis Pavilion are located about 15.0 mi, 15.5 mi, and 18.3 mi, respectively from Dallas/Fort Worth if you are interested in checking them out. Travelers can rent a car at Dallas/Fort Worth for an average daily rate of $52 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Seattle to Houston flights?

    Seattle to Houston flights have a layover in Denver the least frequently.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Houston 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 Seattle to Houston?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Houston (average of $230). Flying from Seattle to Houston in March is currently the most expensive (average of $331). 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

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Alternative routes for Seattle to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Seattle to Houston

Discover the top 8 airlines that operate flights from Seattle to Houston. 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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$77Average$291FlexibilityNo cancel feeOn-time65%
FrontierCheapest$128Average$230FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$293FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$150Average$366FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$233Average$503FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$452FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$396FlexibilityNo cancel feeOn-time63%

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