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$122+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HOU
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
1 adult, Economy
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Find cheap flights from Seattle to Houston with Cheapflights

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Houston are usually found in September or October, booked 56 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap 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 May 12, 2026.

This Expedia deal was found by Cheapflights users on 5/7. 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.
Tue 5/267:50 pm
SEA
-
IAH
1 stop12h 54m
Frontier
Sat 6/610:25 pm
IAH
-
SEA
1 stop13h 41m
Frontier
Deal found 5/7$234
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 6/2411:53 am
SEA
-
IAH
1 stop9h 15m
Frontier
Tue 6/308:53 pm
IAH
-
SEA
1 stop15h 42m
Frontier
Deal found 5/11$237
This CheapOair deal was found by Cheapflights users on 5/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:50 pm
SEA
-
IAH
1 stop26h 54m
Frontier
Mon 6/85:30 am
IAH
-
SEA
1 stop15h 35m
Frontier
Deal found 5/12$238
This CheapOair deal was found by Cheapflights users on 5/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/233:34 pm
SEA
-
IAH
1 stop7h 06m
Frontier
Tue 7/281:42 pm
IAH
-
SEA
1 stop22h 57m
Frontier
Deal found 5/12$240
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Thu 8/611:54 am
SEA
-
IAH
1 stop9h 11m
Frontier
Mon 8/106:30 am
IAH
-
SEA
1 stop9h 49m
Frontier
Deal found 5/8$241
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:41 pm
SEA
-
IAH
1 stop13h 01m
Frontier
Mon 6/296:10 am
IAH
-
SEA
1 stop14h 16m
Frontier
Deal found 5/12$243
This Frontier deal was found by Cheapflights users on 5/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:51 am
SEA
-
IAH
1 stop11h 34m
Frontier
Mon 6/810:05 pm
IAH
-
SEA
1 stop13h 43m
Frontier
Deal found 5/10$244
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:51 am
SEA
-
IAH
1 stop9h 28m
Frontier
Tue 6/210:05 pm
IAH
-
SEA
1 stop14h 01m
Frontier
Deal found 5/9$247
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:50 pm
SEA
-
IAH
1 stop12h 54m
Frontier
Wed 6/39:00 pm
IAH
-
SEA
1 stop15h 36m
Frontier
Deal found 5/12$248
This Frontier deal was found by Cheapflights users on 5/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:53 am
SEA
-
IAH
1 stop9h 15m
Frontier
Sun 6/2110:08 pm
IAH
-
SEA
1 stop13h 40m
Frontier
Deal found 5/12$250
This Frontier deal was found by Cheapflights users on 5/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:51 am
SEA
-
IAH
1 stop11h 34m
Frontier
Sat 6/610:25 pm
IAH
-
SEA
1 stop13h 41m
Frontier
Deal found 5/10$251
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/111:51 am
SEA
-
IAH
1 stop11h 34m
Frontier
Wed 6/39:00 pm
IAH
-
SEA
1 stop15h 36m
Frontier
Deal found 5/8$252

Find 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 May 12, 2026.

Round-trip from

$234
(Expedia)

One-way from

$122
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$467
From Seattle/Tacoma Intl to Houston
Search Deals
One-way flight from Seattle/Tacoma Intl to Houston
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 May 12, 2026.
Use the filters below to find and compare flights from Seattle to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Tue 6/9

7:00 am-1:26 pm

Nonstop4h 26m

Houston George Bush Intcntl

Tue 6/9

6:05 pm-8:53 pm

Nonstop4h 48m

$372

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Wed 6/3

11:59 pm-6:23 am

Nonstop4h 24m

Houston George Bush Intcntl

Sat 6/6

5:57 pm-6:02 am

1 stop14h 05m

$400

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Sat 5/30

5:00 am-11:21 am

Nonstop4h 21m

Houston George Bush Intcntl

Sat 6/6

4:25 pm-7:12 pm

Nonstop4h 47m

$448

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Thu 7/30

5:33 pm-11:59 pm

Nonstop4h 26m

Houston George Bush Intcntl

Tue 8/11

2:38 pm-5:21 pm

Nonstop4h 43m

$457

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Thu 6/25

5:00 pm-11:26 pm

Nonstop4h 26m

Houston George Bush Intcntl

Mon 6/29

6:30 pm-9:18 pm

Nonstop4h 48m

$457
Quickest round-trip

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Mon 6/22

11:57 pm-6:20 am

Nonstop4h 23m

Houston George Bush Intcntl

Tue 6/23

2:38 pm-5:21 pm

Nonstop4h 43m

$457

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Sat 9/5

7:00 am-1:28 pm

Nonstop4h 28m

Houston George Bush Intcntl

Mon 9/7

6:45 pm-9:38 pm

Nonstop4h 53m

$457

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Sat 8/29

10:46 am-5:14 pm

Nonstop4h 28m

Houston George Bush Intcntl

Tue 9/1

2:34 pm-5:21 pm

Nonstop4h 47m

$457

SeattleHouston

SEA - IAH

SEAIAH

Seattle/Tacoma Intl

Tue 7/7

5:00 pm-11:26 pm

Nonstop4h 26m

Houston George Bush Intcntl

Fri 7/10

6:30 pm-9:18 pm

Nonstop4h 48m

$457

SeattleHouston

SEA - HOU

SEAHOU

Seattle/Tacoma Intl

Wed 6/17

6:15 am-4:05 pm

1 stop7h 50m

Houston Hobby

Sun 6/21

5:35 am-9:45 am

1 stop6h 10m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 44 resultsSorted by cheapest first
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5

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?

To ensure you get the cheapest price possible for a flight from Seattle to Houston, you should look to book at least 27 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, April is the cheapest month in which you can book a flight from Seattle to Houston (average of $48). Flying from Seattle to Houston in March is currently the most expensive (average of $177). 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 May 12, 2026.

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 afternoon, which can drop the price by up to 28% 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 May 9, 2026.

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

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

The best insider tips for Seattle to Houston 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 Seattle to Houston 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 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 May 12, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andHawaiian 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.
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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
12,352 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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
2,837 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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
9,701 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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
5.6
Fair
2,951 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

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 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 7 different airlines.

  • How long is the flight from Seattle to Houston?

    A quick flight from Seattle to Houston can take about 4h 24m. United Airlines provides one of the quickest options available for as low as $400. Airlines will cover a distance of 1871 mi. This flight may include one or multiple stops.

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

    Delta, at $88, was found to be the cheapest airline from Seattle to Houston.Alternate airlines to your destination round-trip include Hawaiian Airlines and Frontier. These flights start at 76% lower than the current average price 3 months from now.

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

    $74 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 Hawaiian Airlines, with prices starting from $88 and $108, respectively.

  • What are the cheapest flights from Seattle to Houston?

    While on average a flight from Seattle to Houston is generally $384, our data shows the cheapest flight currently is $85. When looking at the most popular route, (Seattle/Tacoma Intl - Houston Hobby), you can expect to pay $250 for that flight.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Houston (average of $48). Flying from Seattle to Houston in March is currently the most expensive (average of $177). 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

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 Seattle to Houston

Discover the top 7 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$88Average$379FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$97Average$309FlexibilityNo cancel feeOn-time85%
FrontierCheapest$143Average$255FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$202Average$397FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$237Average$427FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$252Average$523FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$385FlexibilityNo cancel feeOn-time63%

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