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Cheap flights from Houston to Seattle from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Seattle departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Frontier Logo
8:48 pm - 2:37 pmIAH-SEA
19h 49m2 stops
Frontier Logo
1:37 pm - 9:52 pmSEA-IAH
6h 15m1 stop
$188Frontier
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Sat, Nov 1 - Tue, Nov 4
Frontier Logo
8:48 pm - 2:37 pmIAH-SEA
19h 49m2 stops
Frontier Logo
1:37 pm - 9:53 pmSEA-IAH
6h 16m1 stop
$189Frontier
Find Deal
Sat, Nov 1 - Wed, Nov 5
Frontier Logo
6:00 am - 12:13 pmIAH-SEA
8h 13m1 stop
Frontier Logo
1:37 pm - 9:53 pmSEA-IAH
6h 16m1 stop
$193Frontier
Find Deal
Thu, Nov 6 - Wed, Nov 12
Alaska Airlines Logo
7:26 pm - 10:24 pmIAH-SEA
4h 58mnonstop
Alaska Airlines Logo
8:00 am - 4:50 pmSEA-IAH
6h 50m1 stop
$225Alaska Airlines
Find Deal
Wed, Nov 5 - Sat, Nov 8
Alaska Airlines Logo
6:58 pm - 9:57 pmIAH-SEA
4h 59mnonstop
Alaska Airlines Logo
5:36 pm - 11:59 pmSEA-IAH
4h 23mnonstop
$227Alaska Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Southwest Logo
4:50 pm - 10:45 pmHOU-SEA
7h 55m1 stop
Southwest Logo
5:40 am - 4:15 pmSEA-HOU
8h 35m1 stop
$277Southwest
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Sat, Nov 1 - Wed, Nov 5
Southwest Logo
9:05 am - 4:40 pmHOU-SEA
9h 35m2 stops
Southwest Logo
5:15 am - 2:25 pmSEA-HOU
7h 10m1 stop
$282Southwest
Find Deal
Sat, Nov 1 - Tue, Nov 4
American Airlines Logo
10:11 am - 2:59 pmHOU-SEA
6h 48m1 stop
American Airlines Logo
11:59 pm - 8:35 amSEA-HOU
6h 36m1 stop
$318American Airlines
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Thu, Nov 13 - Thu, Nov 20
American Airlines Logo
10:08 am - 3:24 pmHOU-SEA
7h 16m1 stop
American Airlines Logo
5:23 am - 3:47 pmSEA-HOU
8h 24m1 stop
$326American Airlines
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Tue, Dec 16 - Mon, Jan 5
Sun Country Air Logo
8:01 pm - 8:39 amHOU-SEA
14h 38m1 stop
Sun Country Air Logo
11:59 pm - 6:49 pmSEA-HOU
16h 50m1 stop
$380Sun Country Air
Find Deal
Wed, Nov 26 - Sun, Nov 30

American Airlines flights from Houston to Seattle

Our best American Airlines deals on Houston to Seattle flight tickets
American Airlines
Nov 13
HOU10:11 amHouston Hobby
6h 48m
1 stop
SEA2:59 pmSeattle/Tacoma Intl
Nov 20
SEA11:59 pmSeattle/Tacoma Intl
6h 36m
1 stop
HOU8:35 amHouston Hobby
$318
Find similar
American Airlines
Dec 16
HOU10:08 amHouston Hobby
7h 16m
1 stop
SEA3:24 pmSeattle/Tacoma Intl
Jan 5
SEA5:23 amSeattle/Tacoma Intl
8h 24m
1 stop
HOU3:47 pmHouston Hobby
$326
Find similar
American Airlines
Oct 20
HOU8:59 amHouston Hobby
7h 49m
1 stop
SEA2:48 pmSeattle/Tacoma Intl
Oct 21
SEA11:24 pmSeattle/Tacoma Intl
7h 04m
1 stop
HOU8:28 amHouston Hobby
$333
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Sun Country Air flights from Houston to Seattle

Our best Sun Country Air deals on Houston to Seattle flight tickets
Sun Country Air
Nov 26
HOU8:01 pmHouston Hobby
14h 38m
1 stop
SEA8:39 amSeattle/Tacoma Intl
Nov 30
SEA11:59 pmSeattle/Tacoma Intl
16h 50m
1 stop
HOU6:49 pmHouston Hobby
$380
Find similar
Sun Country Air
Oct 12
HOU9:34 amHouston Hobby
9h 45m
1 stop
SEA5:19 pmSeattle/Tacoma Intl
Oct 16
SEA6:35 pmSeattle/Tacoma Intl
14h 53m
1 stop
HOU11:28 amHouston Hobby
$500
Find similar
Sun Country Air
Oct 5
HOU9:34 amHouston Hobby
9h 39m
1 stop
SEA5:13 pmSeattle/Tacoma Intl
Oct 9
SEA6:04 pmSeattle/Tacoma Intl
15h 36m
1 stop
HOU11:40 amHouston Hobby
$606
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momondo 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, momondo users made 832,500 searches. Data last updated September 29, 2025.
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

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 11/1

8:48 pm-2:37 pm

2 stops19h 49m

Seattle/Tacoma Intl

Tue 11/4

1:37 pm-9:52 pm

1 stop6h 15m

$188

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Sat 11/1

8:48 pm-2:37 pm

2 stops19h 49m

Seattle/Tacoma Intl

Wed 11/5

1:37 pm-9:53 pm

1 stop6h 16m

$189

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Thu 11/6

6:00 am-12:13 pm

1 stop8h 13m

Seattle/Tacoma Intl

Wed 11/12

1:37 pm-9:53 pm

1 stop6h 16m

$193

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Wed 11/5

7:26 pm-10:24 pm

Nonstop4h 58m

Seattle/Tacoma Intl

Sat 11/8

8:00 am-4:50 pm

1 stop6h 50m

$225

HoustonSeattle

IAH - SEA

IAHSEA

Houston George Bush Intcntl

Tue 11/25

6:58 pm-9:57 pm

Nonstop4h 59m

Seattle/Tacoma Intl

Tue 12/2

5:36 pm-11:59 pm

Nonstop4h 23m

$227

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Sat 11/1

4:50 pm-10:45 pm

1 stop7h 55m

Seattle/Tacoma Intl

Wed 11/5

5:40 am-4:15 pm

1 stop8h 35m

$277

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Sat 11/1

9:05 am-4:40 pm

2 stops9h 35m

Seattle/Tacoma Intl

Tue 11/4

5:15 am-2:25 pm

1 stop7h 10m

$282

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Thu 11/13

10:11 am-2:59 pm

1 stop6h 48m

Seattle/Tacoma Intl

Thu 11/20

11:59 pm-8:35 am

1 stop6h 36m

$318

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Tue 12/16

10:08 am-3:24 pm

1 stop7h 16m

Seattle/Tacoma Intl

Mon 1/5

5:23 am-3:47 pm

1 stop8h 24m

$326

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Wed 11/26

8:01 pm-8:39 am

1 stop14h 38m

Seattle/Tacoma Intl

Sun 11/30

11:59 pm-6:49 pm

1 stop16h 50m

$380

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Houston to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Houston to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $283. If you don’t want to visit Seattle in October, then you should wait until September to fly from Houston, when ticket prices are also cheap, with an average price of $315.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Houston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $379. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Houston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $417.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Houston in the morning is the least expensive time of day to depart. momondo users have found prices as low as $474 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $535. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Houston to Seattle/Tacoma Intl flight route?

Fly from Houston George Bush Intcntl to Seattle/Tacoma Intl for the best Houston - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Houston for as low as $320 on momondo.

What cabin class options are available on Houston to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Houston to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Seattle

Fastest flight time

4h 40m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from Houston to Seattle takes 4h 40m
Direct flights go from Houston to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Houston to Seattle/Tacoma Intl by plane?

    A flight from Houston to Seattle/Tacoma Intl will travel around 1888.8 mi. A reasonable flight in good conditions will take 4h 54m.

  • When did momondo last update prices for flights from Houston to Seattle/Tacoma Intl Airport?

    Prices for flights from Houston to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Houston to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Houston to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Seattle

Compare and see reviews for airlines that fly from Houston to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $107Free CancellationRating
6.3
8,050 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,158 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
7,964 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $186Free CancellationRating
7.8
2,760 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $226Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Tukwila
Kirkland
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Houston to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Houston to Seattle with flexible booking policies on momondo?

Flights from Houston to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Houston to Seattle?

momondo helps you find the best flight between Houston and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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