Seattle

$67+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Apr 10 — Apr 171
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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”

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Cheapflights Tip: The best prices from San Antonio to Seattle/Tacoma Intl are usually found in October or September, booked 67 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap 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 March 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/6. 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 5/93:34 pm
SAT
-
SEA
1 stop19h 53m
Frontier
Mon 5/189:35 pm
SEA
-
SAT
2 stops38h 44m
Frontier
Deal found 3/6$215
This Expedia deal was found by Cheapflights users on 3/6. 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 4/411:38 am
SAT
-
SEA
1 stop10h 38m
Frontier
Sat 4/1112:42 pm
SEA
-
SAT
1 stop9h 37m
Frontier
Deal found 3/6$220
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Wed 4/224:49 pm
SAT
-
SEA
1 stop18h 38m
Frontier
Thu 4/237:12 pm
SEA
-
SAT
1 stop17h 03m
Frontier
Deal found 3/8$221
This CheapOair deal was found by Cheapflights users on 3/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:14 pm
SAT
-
SEA
1 stop20h 13m
Frontier
Sun 5/109:35 pm
SEA
-
SAT
1 stop12h 05m
Frontier
Deal found 3/8$222
This eDestinos deal was found by Cheapflights users on 3/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:00 pm
SAT
-
SEA
1 stop20h 52m
Frontier
Thu 4/307:12 pm
SEA
-
SAT
1 stop17h 03m
Frontier
Deal found 3/9$229
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:02 pm
SAT
-
SEA
1 stop7h 10m
United Airlines
Sat 4/2511:35 pm
SEA
-
SAT
1 stop7h 07m
United Airlines
Deal found 3/8$230
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/153:14 pm
SAT
-
SEA
1 stop20h 13m
Frontier
Fri 5/229:14 pm
SEA
-
SAT
1 stop19h 17m
Frontier
Deal found 3/9$231
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/254:04 pm
SAT
-
SEA
1 stop19h 23m
Frontier
Sun 4/269:54 pm
SEA
-
SAT
2 stops39h 15m
Frontier
Deal found 3/9$232
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 4/233:00 pm
SAT
-
SEA
1 stop20h 52m
Frontier
Mon 4/2710:11 pm
SEA
-
SAT
2 stops39h 42m
Frontier
Deal found 3/8$233
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:31 pm
SAT
-
SEA
1 stop6h 13m
American Airlines
Mon 4/2711:55 pm
SEA
-
SAT
1 stop7h 41m
American Airlines
Deal found 3/8$234
This American Airlines deal was found by Cheapflights users on 3/6. 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 10/143:11 pm
SAT
-
SEA
1 stop8h 15m
American Airlines
Sat 10/1711:20 pm
SEA
-
SAT
1 stop6h 55m
American Airlines
Deal found 3/6$235
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:14 pm
SAT
-
SEA
1 stop20h 13m
Frontier
Mon 5/186:57 pm
SEA
-
SAT
1 stop17h 22m
Frontier
Deal found 3/10$236

Find 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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(Kiwi.com)

One-way from

$67
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$377

Good round-trip deal

$397 or less

Good one-way deal

$188 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. 11% potential increase in price ($43 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in March 2026
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.

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 March 11, 2026.
Use the filters below to find and compare flights from San Antonio to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 7/21

4:18 pm-8:53 pm

1 stop6h 35m

Seattle/Tacoma Intl

Thu 7/30

11:49 pm-8:27 am

1 stop6h 38m

$235

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 5/26

6:10 am-6:00 pm

1 stop13h 50m

Seattle/Tacoma Intl

Mon 6/1

9:40 am-12:15 am

2 stops12h 35m

$251

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 4/8

2:35 pm-12:10 am

1 stop11h 35m

Seattle/Tacoma Intl

Mon 4/13

1:55 pm-12:30 am

2 stops8h 35m

$282

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 6/10

5:55 pm-11:30 pm

2 stops7h 35m

Seattle/Tacoma Intl

Wed 6/17

11:55 am-12:30 am

2 stops10h 35m

$286

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Thu 4/23

2:45 pm-12:55 am

2 stops12h 10m

Seattle/Tacoma Intl

Wed 4/29

11:35 am-10:05 pm

2 stops8h 30m

$303

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 4/8

4:55 pm-10:55 pm

2 stops8h 00m

Seattle/Tacoma Intl

Wed 4/15

6:50 am-5:20 pm

2 stops8h 30m

$321

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 6/30

5:30 am-10:00 am

1 stop6h 30m

Seattle/Tacoma Intl

Tue 7/7

5:00 am-3:39 pm

1 stop8h 39m

$325

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 5/5

5:30 am-2:36 pm

2 stops11h 06m

Seattle/Tacoma Intl

Sat 5/9

7:00 am-3:43 pm

1 stop6h 43m

$330

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sun 8/16

4:10 pm-10:17 pm

1 stop8h 07m

Seattle/Tacoma Intl

Sun 8/23

12:00 pm-11:18 pm

1 stop9h 18m

$336

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 3/24

5:55 pm-12:03 am

1 stop8h 08m

Seattle/Tacoma Intl

Fri 4/3

1:32 pm-12:16 am

1 stop8h 44m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 23 resultsSorted by cheapest first
1
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*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.

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 March 6, 2026.

The best time to book flights from San Antonio to Seattle is 67 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, May is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $101). Flying from San Antonio to Seattle in July is currently the most expensive (average of $212). 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 March 11, 2026.

It’s optimal to fly from San Antonio to Seattle in the afternoon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the evening.

The best insider tips for San Antonio 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 San Antonio to Seattle trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on SAT

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.

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.

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 11, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta 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.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 is 1 flight 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 25m 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 6h 35m. Fly via United Airlines or Southwest 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, Frontier ($78), Spirit Airlines ($87), and Delta ($107) offers the cheapest pricing from San Antonio to Seattle. You may be able to fly from San Antonio to Seattle for 75% 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 Southwest, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Frontier 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 Hawaiian Airlines (84%), Air Tahiti Nui (84%) and Alaska Airlines (70%).

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

    While on average a flight from San Antonio to Seattle is generally $356, our data shows the cheapest flight currently is $148. When looking at the most popular route, (San Antonio - Seattle/Tacoma Intl), you can expect to pay $224 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 Reunion Tower are currently the most popular points of interest in Dallas at the moment. American Airlines Center, Dallas World Aquarium and Reunion Tower are located about 15.0 mi, 15.5 mi, and 15.6 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 $52 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Denver?

    Most Denver visitors opt to spend their time at Coors Field, 16th Street Mall, and Civic Center Park. Coors Field, 16th Street Mall and Civic Center Park are located about 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl if you are interested in checking them out. Travelers can book a car rental at Denver Intl for about $42 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, May is the cheapest month in which you can book a flight from San Antonio to Seattle (average of $101). Flying from San Antonio to Seattle in July is currently the most expensive (average of $212). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
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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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$241FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$87Average$176FlexibilityNo cancel feeOn-time65%
DeltaCheapest$107Average$241FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$188Average$377FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$194Average$335FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$194Average$294FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$214Average$307FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$217Average$380FlexibilityNo cancel feeOn-time75%

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