HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$68+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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 October or September, booked 90 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 December 15, 2025.

This Frontier deal was found by Cheapflights users on 12/15. 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.
Wed 12/246:45 amSAT - SEA
1 stop7h 45mFrontier
Mon 1/52:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$233
This Frontier deal was found by Cheapflights users on 12/14. 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.
Wed 12/246:45 amSAT - SEA
1 stop7h 45mFrontier
Thu 1/11:25 pmSEA - SAT
1 stop8h 52mFrontier
Deal found 12/14$234
This Frontier deal was found by Cheapflights users on 12/15. 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 12/256:45 amSAT - SEA
1 stop7h 45mFrontier
Mon 1/52:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$253
This Delta deal was found by Cheapflights users on 12/15. 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 12/227:18 pmSAT - SEA
1 stop7h 02mDelta
Tue 1/61:30 pmSEA - SAT
1 stop8h 13mDelta
Deal found 12/15$256
This Frontier deal was found by Cheapflights users on 12/15. 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.
Wed 12/246:45 amSAT - SEA
1 stop7h 45mFrontier
Sun 1/42:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$268
This Frontier deal was found by Cheapflights users on 12/15. 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 12/256:45 amSAT - SEA
1 stop7h 45mFrontier
Thu 1/11:25 pmSEA - SAT
1 stop8h 52mFrontier
Deal found 12/15$278
This Frontier deal was found by Cheapflights users on 12/15. 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 12/256:45 amSAT - SEA
1 stop7h 45mFrontier
Sun 1/42:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$288
This Delta deal was found by Cheapflights users on 12/15. 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 12/235:10 amSAT - SEA
1 stop10h 57mDelta
Thu 1/15:25 amSEA - SAT
1 stop6h 21mDelta
Deal found 12/15$297
This Frontier deal was found by Cheapflights users on 12/15. 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.
Wed 12/246:45 amSAT - SEA
1 stop7h 45mFrontier
Mon 12/292:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$304
This Frontier deal was found by Cheapflights users on 12/15. 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.
Fri 12/266:45 amSAT - SEA
1 stop7h 45mFrontier
Mon 1/52:54 pmSEA - SAT
1 stop7h 23mFrontier
Deal found 12/15$312
This Delta deal was found by Cheapflights users on 12/15. 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 12/222:51 pmSAT - SEA
1 stop7h 54mDelta
Wed 12/3111:45 amSEA - SAT
1 stop8h 08mDelta
Deal found 12/15$318

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$212
(Kiwi.com)

One-way from

$68
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$364

Good round-trip deal

$449 or less

Good one-way deal

$248 or less
Provider with most accurate pricing for San Antonio-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Seattle/Tacoma Intl flights.
Search Deals
From San Antonio to Seattle/Tacoma Intl
Search Deals
One-way flight from San Antonio to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Antonio to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from San Antonio to Seattle/Tacoma Intl.
Search Deals

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 December 15, 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

Wed 3/25

12:47 pm-6:30 pm

1 stop7h 43m

Seattle/Tacoma Intl

Sun 3/29

5:30 am-1:44 pm

1 stop6h 14m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Mon 2/2

6:10 am-10:45 am

1 stop6h 35m

Seattle/Tacoma Intl

Mon 2/2

2:05 pm-9:55 pm

1 stop5h 50m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Thu 4/30

5:50 pm-11:26 pm

1 stop7h 36m

Seattle/Tacoma Intl

Tue 5/5

9:55 am-11:12 pm

1 stop11h 17m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Fri 5/1

5:50 pm-11:26 pm

1 stop7h 36m

Seattle/Tacoma Intl

Sat 5/9

5:45 am-1:31 pm

1 stop5h 46m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 2/18

2:33 pm-8:46 pm

1 stop8h 13m

Seattle/Tacoma Intl

Fri 3/6

8:30 am-5:04 pm

1 stop6h 34m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Thu 3/19

5:56 pm-12:03 am

1 stop8h 07m

Seattle/Tacoma Intl

Wed 3/25

1:30 pm-12:13 am

1 stop8h 43m

$215

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Mon 1/12

6:46 pm-9:22 pm

Nonstop4h 36m

Seattle/Tacoma Intl

Fri 1/23

11:40 am-5:45 pm

Nonstop4h 05m

$217

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 2/18

6:06 pm-8:43 pm

Nonstop4h 37m

Seattle/Tacoma Intl

Fri 3/6

11:09 am-5:10 pm

Nonstop4h 01m

$217

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Mon 1/12

6:46 pm-9:22 pm

Nonstop4h 36m

Seattle/Tacoma Intl

Sun 1/18

11:40 am-5:45 pm

Nonstop4h 05m

$217

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sat 1/10

2:15 pm-9:15 pm

2 stops9h 00m

Seattle/Tacoma Intl

Mon 1/12

12:57 pm-9:21 pm

1 stop6h 24m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 12, 2025.

The best time to book flights from San Antonio to Seattle is 90 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 June is currently the most expensive (average of $214). 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 December 15, 2025.

It’s optimal to fly from San Antonio to Seattle in the morning. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the evening.

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 December 13, 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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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
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

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 December 15, 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.
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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.
Alaska Airlines
8.0
Very good
11,455 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

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 are 4 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 33m 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?

    Within the past month, 49 users have taken a look at flights from San Antonio to Seattle/Tacoma Intl.

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

    There are many flights that can get you from San Antonio to Seattle in 7h 43m. Fly via Delta to get the fastest option. Airlines will cover a distance of 1772 mi.

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

    According to our current data, Frontier ($74), Spirit Airlines ($87), and Delta ($115) offers the cheapest pricing from San Antonio to Seattle. You may be able to fly from San Antonio to Seattle for 77% 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 Qatar Airways (84%), Condor (81%) and Air Tahiti Nui (80%).

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

    While on average a flight from San Antonio to Seattle is generally $659, our data shows the cheapest flight currently is $128. When looking at the most popular route, (San Antonio - Seattle/Tacoma Intl), you can expect to pay $190 for that flight.

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

    Of the flights from San Antonio to Seattle that have layovers, most of them stop in Dallas.

  • 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 $50 per day to make their sightseeing more efficient.

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

    San Antonio to Seattle flights have a layover in Salt Lake City least often.

  • 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 June is currently the most expensive (average of $214). 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
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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.
Dallas/Fort Worth to Seattle flights
Hobby to Seattle flights
George Bush Intcntl to Seattle flights
Austin to Seattle flights
Dallas/Fort Worth to Portland flights
Love Field to Seattle flights
Hobby to Portland flights
George Bush Intcntl to Portland flights
Austin to Portland flights
El Paso to Seattle flights
Love Field to Portland flights
Dallas/Fort Worth to Spokane flights
Corpus Christi to Seattle flights
San Antonio to Portland flights
Dallas/Fort Worth to Pasco flights
Austin to Spokane flights
McAllen to Seattle flights
El Paso to Portland flights
Hobby to Spokane flights
George Bush Intcntl to Spokane flights
McAllen to Portland flights
Midland to Seattle flights
Love Field to Spokane flights
George Bush Intcntl to Pasco flights
Tyler to Seattle flights
San Antonio to Spokane flights
Laredo to Seattle flights
Dallas/Fort Worth to Pullman flights
Amarillo to Seattle flights
Dallas/Fort Worth to Wenatchee flights
Lubbock to Seattle flights
Hobby to Pasco flights
Harlingen to Seattle flights
Waco to Seattle flights
College Station to Seattle flights
Lubbock to Portland flights
El Paso to Spokane flights
Killeen to Seattle flights
San Antonio to Pasco flights
Austin to Pasco flights
Corpus Christi to Portland flights
Corpus Christi to Spokane flights
Brownsville to Portland flights
Laredo to Portland flights
Midland to Portland flights
Amarillo to Portland flights
Brownsville to Seattle flights
Love Field to Bellingham flights
Dallas/Fort Worth to Bellingham flights

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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$87Average$199FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$242FlexibilityNo cancel feeOn-time62%
DeltaCheapest$178Average$241FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$194Average$348FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$194Average$297FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$214Average$306FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$236Average$400FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$237Average$377FlexibilityNo cancel feeOn-time85%

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.