San Antonio

$79+ Cheap flights from Seattle to San Antonio (SEA - SAT)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAT
Mar 30 — Apr 61
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Antonio are usually found in January or September, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Seattle to San Antonio

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$211
(Mytrip)

One-way from

$79
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$335

Good round-trip deal

$307 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Antonio flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Antonio flights.
From Seattle/Tacoma Intl to San Antonio
One-way flight from Seattle/Tacoma Intl to San Antonio
Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Seattle/Tacoma Intl to San Antonio.
Price to beat on a one-way flight from Seattle/Tacoma Intl to San Antonio.

Find flight deals from Seattle to San Antonio

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

This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1512:30 pmSEA - SAT
1 stop27h 50mSpirit Airlines
Mon 4/217:00 amSAT - SEA
1 stop8h 25mSpirit Airlines
Deal found 3/23$211
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1412:59 amSEA - SAT
1 stop7h 08mAmerican Airlines
Sat 4/195:00 amSAT - SEA
1 stop6h 29mAmerican Airlines
Deal found 3/24$217
This Expedia deal was found by Cheapflights users on 3/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/35:50 pmSEA - SAT
Nonstop4h 09mMultiple Airlines
Sat 5/102:37 pmSAT - SEA
1 stop11h 33mMultiple Airlines
Deal found 3/24$220
This Delta deal was found by Cheapflights users on 3/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1411:55 pmSEA - SAT
1 stop10h 01mDelta
Thu 7/174:10 pmSAT - SEA
1 stop8h 36mDelta
Deal found 3/23$231
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:41 pmSEA - SAT
Nonstop3h 59mAlaska Airlines
Mon 4/217:21 pmSAT - SEA
Nonstop4h 36mAlaska Airlines
Deal found 3/23$267
This Southwest deal was found by Cheapflights users on 3/23. 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.
Mon 4/71:10 pmSEA - SAT
2 stops7h 40mSouthwest
Wed 4/97:20 pmSAT - SEA
1 stop6h 10mSouthwest
Deal found 3/23$291
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2112:45 pmSEA - SAT
1 stop7h 30mUnited Airlines
Sun 5/256:00 amSAT - SEA
1 stop7h 21mUnited Airlines
Deal found 3/24$301
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:50 pmSEA - SAT
Nonstop4h 09mHawaiian Airlines
Sat 5/106:35 amSAT - SEA
Nonstop4h 25mHawaiian Airlines
Deal found 3/24$307
This CheapOair deal was found by Cheapflights users on 3/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/282:02 pmSEA - SAT
1 stop21h 16mFrontier
Mon 3/315:28 pmSAT - SEA
1 stop18h 07mFrontier
Deal found 3/23$320

Cheapflights Fare Finder

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

Fly from

Seattle

Fly to

San Antonio

Route

Depart

Return

Price

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 4/15

12:30 pm-6:20 pm

1 stop27h 50m

San Antonio

Mon 4/21

7:00 am-1:25 pm

1 stop8h 25m

$211

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 4/14

12:59 am-10:07 am

1 stop7h 08m

San Antonio

Sat 4/19

5:00 am-9:29 am

1 stop6h 29m

$217

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Sat 5/3

5:50 pm-11:59 pm

Nonstop4h 09m

San Antonio

Sat 5/10

2:37 pm-12:10 am

1 stop11h 33m

$220

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 7/14

11:55 pm-11:56 am

1 stop10h 01m

San Antonio

Thu 7/17

4:10 pm-10:46 pm

1 stop8h 36m

$231

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 4/15

11:41 pm-5:40 am

Nonstop3h 59m

San Antonio

Mon 4/21

7:21 pm-9:57 pm

Nonstop4h 36m

$267

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 4/7

1:10 pm-10:50 pm

2 stops7h 40m

San Antonio

Wed 4/9

7:20 pm-11:30 pm

1 stop6h 10m

$291

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Wed 5/21

12:45 pm-10:15 pm

1 stop7h 30m

San Antonio

Sun 5/25

6:00 am-11:21 am

1 stop7h 21m

$301

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Tue 5/6

5:50 pm-11:59 pm

Nonstop4h 09m

San Antonio

Sat 5/10

6:35 am-9:00 am

Nonstop4h 25m

$307

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Thu 4/3

11:36 am-4:47 pm

1 stop27h 11m

San Antonio

Mon 4/7

5:04 pm-9:35 am

1 stop18h 31m

$330

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

Mon 4/14

8:56 pm-6:20 pm

1 stop19h 24m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 18 results
1
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Compare providers for flights from Seattle to San Antonio

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 Seattle to San Antonio in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapOairPrice Accuracy1 starTrust 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 Seattle-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San Antonio 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 Seattle-San Antonio 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 Seattle to San Antonio

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Antonio. Price data was last updated on March 21, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Seattle to San Antonio (average of $295). Flying from Seattle to San Antonio in March is currently the most expensive (average of $376). 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 SEA to SAT?

Find hourly flight availability from Seattle to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 31% on flights from Seattle to San Antonio by exploring options for tickets at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to San Antonio. Price data was last updated on March 16, 2025.

Travelers seeking maximum savings on their Seattle to San Antonio 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.

Weekly flight availability from Seattle to San Antonio

Explore weekly flight availability from Seattle to San Antonio. 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 March 25, 2025.

The most flights from SEA to SAT are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in San Antonio by month

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

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

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

If weather is an important factor for your trip to San Antonio, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated March 25, 2025.
Read through reviews of airlines operating flights from Seattle to San Antonio, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
8.0
Very good

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Antonio. 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 Seattle to San Antonio?

    San Antonio is the airport most travelers will use when flying to San Antonio from Seattle/Tacoma Intl. Booking flights from Seattle/Tacoma Intl (SEA) to San Antonio (SAT) should be relatively easy as there are 5 daily flights to San Antonio from 8 different airlines. 3h 59m is how long a flight from Seattle to San Antonio will take if you book a nonstop flight.

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

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

    Currently priced at $211, Spirit Airlines will fly you from Seattle to San Antonio and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $217 and $224, respectively. Users have found that Spirit Airlines is 39% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Seattle to San Antonio for a low price.

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

    Before booking your flight to San Antonio from Seattle, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (90%), Air Tahiti Nui (90%), Hawaiian Airlines( 89%).

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

    Looking for the cheapest flight from Seattle to San Antonio? While on average our users pay $310, our data indicates the cheapest price to be $118. The most popular route (Seattle/Tacoma Intl - San Antonio), is priced around $164.

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

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

    Temple Square, Abravanel Hall, and Salt Lake Temple are currently the most popular points of interest in Salt Lake City at the moment. Temple Square, Abravanel Hall and Salt Lake Temple are located about 4.7 mi, 4.7 mi, and 4.8 mi, respectively from Salt Lake City if you are interested in checking them out. Those landing in Salt Lake City looking to spend some time exploring during their layover can rent a car for about $55 per day.

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

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Seattle to San Antonio (average of $295). Flying from Seattle to San Antonio in March is currently the most expensive (average of $376). 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

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Alternative routes for Seattle to San Antonio

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

Top 8 airlines flying from Seattle to San Antonio

Discover the top 8 airlines that operate flights from Seattle to San Antonio. 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$107Average$198FlexibilityNo cancel feeOn-time65%
FrontierCheapest$129Average$208FlexibilityNo cancel feeOn-time62%
DeltaCheapest$176Average$274FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$196Average$293FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$340FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$222Average$362FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$232Average$413FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$274Average$433FlexibilityNo cancel feeOn-time63%
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