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$86+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SEA
May 20 — May 271
Tue 5/20
Tue 5/27
1 adult, Economy
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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”

2. Select your favorite providers

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Cheapflights Tip: The best prices from San Antonio to Seattle/Tacoma Intl are usually found in January or April, booked 56 days in advance, depart on a Wednesday or Tuesday 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 May 15, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$199
(CheapOair)

One-way from

$86
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$352

Good round-trip deal

$410 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for San Antonio-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Seattle/Tacoma Intl flights.
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From San Antonio to Seattle/Tacoma Intl
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One-way flight from San Antonio to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from San Antonio to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from San Antonio to Seattle/Tacoma Intl.
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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 May 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:55 pmSAT - SEA
1 stop6h 44mFrontier
Mon 9/296:00 amSEA - SAT
1 stop6h 00mFrontier
Deal found 5/15$196
This CheapOair deal was found by Cheapflights users on 5/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/102:37 pmSAT - SEA
1 stop11h 33mSpirit Airlines
Tue 6/173:58 pmSEA - SAT
1 stop11h 02mSpirit Airlines
Deal found 5/14$199
This CheapOair deal was found by Cheapflights users on 5/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/82:09 pmSAT - SEA
1 stop26h 01mMultiple Airlines
Wed 6/113:20 pmSEA - SAT
1 stop11h 40mMultiple Airlines
Deal found 5/15$211
This United Airlines deal was found by Cheapflights users on 5/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:04 pmSAT - SEA
1 stop6h 56mUnited Airlines
Tue 7/111:58 pmSEA - SAT
1 stop6h 52mUnited Airlines
Deal found 5/14$219
This Delta deal was found by Cheapflights users on 5/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:10 pmSAT - SEA
1 stop9h 14mDelta
Sat 9/205:45 amSEA - SAT
1 stop5h 47mDelta
Deal found 5/14$231
This Hawaiian Airlines deal was found by Cheapflights users on 5/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:42 pmSAT - SEA
Nonstop4h 23mHawaiian Airlines
Tue 9/235:55 pmSEA - SAT
Nonstop4h 04mHawaiian Airlines
Deal found 5/15$237
This American Airlines deal was found by Cheapflights users on 5/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/133:10 pmSAT - SEA
1 stop7h 23mAmerican Airlines
Fri 8/2212:57 amSEA - SAT
1 stop6h 25mAmerican Airlines
Deal found 5/15$275
This Southwest deal was found by Cheapflights users on 5/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/227:50 pmSAT - SEA
1 stop6h 40mSouthwest
Tue 7/295:20 amSEA - SAT
2 stops8h 50mSouthwest
Deal found 5/15$281
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:42 pmSAT - SEA
Nonstop4h 23mAlaska Airlines
Sat 9/276:00 amSEA - SAT
1 stop7h 48mAlaska Airlines
Deal found 5/14$347

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 May 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

Thu 9/25

2:55 pm-7:39 pm

1 stop6h 44m

Seattle/Tacoma Intl

Mon 9/29

6:00 am-2:00 pm

1 stop6h 00m

$196

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 6/10

2:37 pm-12:10 am

1 stop11h 33m

Seattle/Tacoma Intl

Tue 6/17

3:58 pm-5:00 am

1 stop11h 02m

$199

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sun 6/8

2:09 pm-2:10 pm

1 stop26h 01m

Seattle/Tacoma Intl

Wed 6/11

3:20 pm-5:00 am

1 stop11h 40m

$211

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 6/24

6:04 pm-11:00 pm

1 stop6h 56m

Seattle/Tacoma Intl

Tue 7/1

11:58 pm-8:50 am

1 stop6h 52m

$219

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Fri 9/12

4:10 pm-10:23 pm

1 stop8h 13m

Seattle/Tacoma Intl

Fri 9/19

12:40 am-12:06 pm

1 stop9h 26m

$231

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 9/17

6:30 am-8:55 am

Nonstop4h 25m

Seattle/Tacoma Intl

Tue 9/23

5:55 pm-11:59 pm

Nonstop4h 04m

$237

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Sat 8/30

7:42 pm-10:05 pm

Nonstop4h 23m

Seattle/Tacoma Intl

Sat 9/6

12:34 pm-6:46 pm

Nonstop4h 12m

$247

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Wed 8/13

3:10 pm-8:33 pm

1 stop7h 23m

Seattle/Tacoma Intl

Fri 8/22

12:57 am-9:22 am

1 stop6h 25m

$275

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Tue 7/22

7:50 pm-12:30 am

1 stop6h 40m

Seattle/Tacoma Intl

Tue 7/29

5:20 am-4:10 pm

2 stops8h 50m

$281

San AntonioSeattle

SAT - SEA

SATSEA

San Antonio

Fri 6/13

6:35 pm-5:14 pm

1 stop24h 39m

Seattle/Tacoma Intl

Sun 6/15

11:59 pm-9:47 am

1 stop7h 48m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 19 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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapOairPrice 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 CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Antonio-Seattle flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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 May 9, 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 July is currently the most expensive (average of $401). 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 May 15, 2025.

It’s optimal to fly from San Antonio to Seattle in the afternoon. By choosing this option you can save up to 33% 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 May 11, 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Antonio to Seattle

Explore weekly flight availability from San Antonio to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 15, 2025.

The most flights from SAT to SEA are scheduled on a Thursday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 May 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from San Antonio to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,291 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,435 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,731 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 3 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 16m 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, 33 users have taken a look at flights from San Antonio to Seattle/Tacoma Intl.

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

    According to our current data, Spirit Airlines ($199), Frontier ($203), and United Airlines ($219) offers the cheapest pricing from San Antonio to Seattle. You may be able to fly from San Antonio to Seattle for 42% 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 Spirit Airlines, with whom users have recently found tickets for as low as $86. However, be on the lookout for offers from Frontier and Delta, 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 Condor (89%), Qatar Airways (89%) and Alaska Airlines (78%).

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

    While on average a flight from San Antonio to Seattle is generally $823, our data shows the cheapest flight currently is $171. 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 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 $62 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, 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 July is currently the most expensive (average of $401). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Cle Elum
Kent
Centralia
Kirkland
Aberdeen
Shelton
Silverdale
Redmond

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Alternative routes for San Antonio to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$181FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$108Average$190FlexibilityNo cancel feeOn-time65%
DeltaCheapest$178Average$266FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$190Average$313FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$342FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$238Average$415FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$255Average$421FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$267Average$377FlexibilityNo cancel feeOn-time85%

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