Seattle

$79+ Cheap flights from San Antonio to Seattle (SAT - 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Oct 25 — Nov 11
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio 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 San Antonio to Seattle/Tacoma Intl are usually found in January or October, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from San Antonio to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(Delta)

One-way from

$79
(Priceline)

Popular in

December

Cheapest in

January

Average price

$282

Good round-trip deal

$274 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for San Antonio-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for San Antonio-Seattle/Tacoma Intl flights.
From San Antonio to Seattle/Tacoma Intl
One-way flight from San Antonio to Seattle/Tacoma Intl
Highest demand for flights based on searches. 2% potential increase in price ($8 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from San Antonio to Seattle/Tacoma Intl.
Price to beat on a one-way flight from San Antonio to Seattle/Tacoma Intl.

Find flight deals from San Antonio to Seattle

Cheapest flights from San Antonio to Seattle
Explore the most affordable flight options available from San Antonio to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:33 pmSAT - SEA
1 stop11h 21mDelta
Mon 10/2711:55 pmSEA - SAT
1 stop9h 55mDelta
Deal found 9/24$196
This Delta deal was found by Cheapflights users on 9/25. 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.
Tue 12/96:29 amSAT - SEA
1 stop8h 29mDelta
Wed 12/105:25 amSEA - SAT
1 stop6h 27mDelta
Deal found 9/25$197
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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.
Wed 12/106:00 amSAT - SEA
Nonstop4h 40mAlaska Airlines
Wed 12/1011:52 amSEA - SAT
Nonstop4h 07mAlaska Airlines
Deal found 9/25$199
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:35 pmSAT - SEA
1 stop6h 15mSouthwest
Tue 10/2810:10 amSEA - SAT
2 stops10h 10mSouthwest
Deal found 9/24$200
This Kiwi.com deal was found by Cheapflights users on 9/22. 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.
Sun 11/168:25 pmSAT - SEA
1 stop17h 48mFrontier
Mon 11/241:01 pmSEA - SAT
1 stop9h 19mFrontier
Deal found 9/22$203
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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 12/86:55 pmSAT - SEA
Nonstop4h 37mAlaska Airlines
Wed 12/1011:52 amSEA - SAT
Nonstop4h 07mAlaska Airlines
Deal found 9/25$205
This Delta deal was found by Cheapflights users on 9/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:40 pmSAT - SEA
1 stop5h 52mDelta
Fri 11/145:25 amSEA - SAT
1 stop6h 24mDelta
Deal found 9/24$206
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:20 pmSAT - SEA
1 stop17h 47mFrontier
Wed 10/88:43 pmSEA - SAT
1 stop12h 31mFrontier
Deal found 9/24$207
This Southwest deal was found by Cheapflights users on 9/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:40 pmSAT - SEA
1 stop6h 50mSouthwest
Wed 12/106:35 amSEA - SAT
2 stops13h 20mSouthwest
Deal found 9/23$208
This KAYAK deal was found by Cheapflights users on 9/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amSAT - SEA
Nonstop4h 40mAlaska Airlines
Sun 12/711:52 amSEA - SAT
Nonstop4h 07mAlaska Airlines
Deal found 9/23$209
This United Airlines deal was found by Cheapflights users on 9/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:24 pmSAT - SEA
1 stop8h 22mUnited Airlines
Fri 11/141:43 pmSEA - SAT
1 stop7h 13mUnited Airlines
Deal found 9/23$210
This Delta deal was found by Cheapflights users on 9/25. 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 12/86:00 amSAT - SEA
1 stop8h 39mDelta
Wed 12/106:00 amSEA - SAT
1 stop10h 15mDelta
Deal found 9/25$211

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio 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 September 25, 2025.
Use the filters below to find and compare flights from San Antonio to Seattle that are best for you.

Fly from

San Antonio

Fly to

Seattle

Route

Depart

Return

Price

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sat 11/15

6:00 am-1:05 pm

1 stop9h 05m

Seattle/Tacoma Intl

Sun 11/23

11:55 pm-11:55 am

1 stop10h 00m

$196

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sat 10/25

6:00 am-1:00 pm

1 stop9h 00m

Seattle/Tacoma Intl

Tue 10/28

5:00 pm-12:31 am

1 stop5h 31m

$196

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 12/9

6:29 am-12:58 pm

1 stop8h 29m

Seattle/Tacoma Intl

Wed 12/10

5:25 am-1:52 pm

1 stop6h 27m

$197

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Fri 10/24

8:35 pm-12:50 am

1 stop6h 15m

Seattle/Tacoma Intl

Tue 10/28

10:10 am-10:20 pm

2 stops10h 10m

$200

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Mon 11/17

6:51 pm-9:21 pm

Nonstop4h 30m

Seattle/Tacoma Intl

Wed 11/19

11:45 am-5:55 pm

Nonstop4h 10m

$205

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 10/21

6:40 am-9:09 am

Nonstop4h 29m

Seattle/Tacoma Intl

Thu 10/23

5:59 pm-12:04 am

Nonstop4h 05m

$205

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 12/9

6:00 am-8:40 am

Nonstop4h 40m

Seattle/Tacoma Intl

Wed 12/10

11:52 am-5:59 pm

Nonstop4h 07m

$205

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Mon 11/17

6:11 pm-12:01 am

1 stop7h 50m

Seattle/Tacoma Intl

Wed 11/19

2:02 pm-12:38 am

1 stop8h 36m

$211

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 10/29

5:10 pm-11:45 pm

2 stops8h 35m

Seattle/Tacoma Intl

Wed 11/5

6:35 am-9:55 pm

2 stops13h 20m

$246

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sun 12/7

5:25 am-10:40 am

1 stop7h 15m

Seattle/Tacoma Intl

Thu 12/11

6:35 am-9:55 pm

2 stops13h 20m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 23 results
1
2
3

Compare providers for flights from San Antonio to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Seattle in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Antonio to Seattle 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 San Antonio to Seattle trip
Airports
SAT

For longer trips, economy lots with shuttle service offer better value than the new parking garage at SAT.

Read more about SATby Ramsey Qubein
SEA

Take the Link light rail from SEA to downtown Seattle for an inexpensive, 40-minute journey with ample luggage space.

Read more about SEAby Brandon Schultz
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on SAT

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

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 San Antonio to Seattle

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Seattle. Price data was last updated on September 19, 2025.

The best time to book flights from San Antonio to Seattle is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $238). Flying from San Antonio to Seattle in June is currently the most expensive (average of $388). 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 SAT to SEA?

Find hourly flight availability from San Antonio 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 September 25, 2025.

It’s optimal to fly from San Antonio to Seattle in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from San Antonio to Seattle?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Seattle. Price data was last updated on September 21, 2025.

Travelers seeking maximum savings on their San Antonio to Seattle flight should consider departing on Tuesday at noon 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.

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 September 25, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from San Antonio to Seattle. 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.

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
8.0
Very good

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Antonio to Seattle?

    If you wish to fly to Seattle from San Antonio, then you need to book flights from San Antonio to Seattle/Tacoma Intl. There are 5 flights from San Antonio (SAT) to Seattle/Tacoma Intl (SEA) per day to choose from. Flights to Seattle from San Antonio are available from 8 different airlines, which means you should have some options if you want to compare airfare deals. 4h 28m is how long a nonstop flight from San Antonio to Seattle/Tacoma Intl typically takes.

  • How popular is this San Antonio to Seattle flight route?

  • How long is the flight from San Antonio to Seattle?

    There are many flights that can get you from San Antonio to Seattle in 4h 30m. Fly via Delta, Southwest, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 1772 mi. This flight may include one or multiple stops.

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

    According to our current data, Spirit Airlines ($87), Frontier ($101), and Delta ($178) offers the cheapest pricing from San Antonio to Seattle. You may be able to fly from San Antonio to Seattle for 74% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $85. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from San Antonio to Seattle for a low price.

  • What are the most reliable airlines from San Antonio to Seattle?

    The top 3 most reliable airlines when flying from San Antonio to Seattle are Qatar Airways (89%), Condor (83%) and Alaska Airlines (75%).

  • What are the cheapest flights from San Antonio to Seattle?

    While on average a flight from San Antonio to Seattle is generally $885, our data shows the cheapest flight currently is $138. When looking at the most popular route, (San Antonio - Seattle/Tacoma Intl), you can expect to pay $171 for that flight.

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

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

    American Airlines Center, Dallas World Aquarium, and Dos Equis Pavilion are currently the most popular points of interest in Dallas at the moment. 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 book a car rental at Dallas/Fort Worth for about $47 per day to make their sightseeing more efficient.

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

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

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

  • How can I find direct flights from San Antonio to Seattle?

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

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

    Yes. Cheapflights offers flight deals from San Antonio 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 San Antonio to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $238). Flying from San Antonio to Seattle in June is currently the most expensive (average of $388). 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
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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.

Alternative routes for San Antonio to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Antonio to Seattle

Discover the top 8 airlines that operate flights from San Antonio 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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$87Average$192FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$225FlexibilityNo cancel feeOn-time62%
DeltaCheapest$178Average$244FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$194Average$358FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$194Average$300FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$223Average$331FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$237Average$377FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$237Average$423FlexibilityNo cancel feeOn-time75%

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.