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$61+ Cheap flights from Washington to San Antonio (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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAT
janv. 29 — févr. 51
jeu. 1/29
jeu. 2/5
1 adult, Economy
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Cheap flight deals from Washington to San Antonio

Cheapest flights from Washington to San Antonio
Explore the most affordable flight options available from Washington to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 30, 2025.

This United Airlines deal was found by Cheapflights users on 12/28. 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.
lun. 12/2911:59 pmSEA - SAT
1 stop8h 41mUnited Airlines
lun. 1/55:59 pmSAT - SEA
1 stop6h 53mUnited Airlines
Deal found 12/28$395
This United Airlines deal was found by Cheapflights users on 12/28. 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.
lun. 12/2911:59 pmSEA - SAT
1 stop6h 51mUnited Airlines
ven. 1/99:50 amSAT - SEA
2 stops10h 37mUnited Airlines
Deal found 12/28$400
This Delta deal was found by Cheapflights users on 12/28. 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.
mar. 12/304:57 pmSEA - SAT
1 stop5h 45mDelta
mer. 1/77:35 amSAT - SEA
1 stop6h 58mDelta
Deal found 12/28$415
This Southwest deal was found by Cheapflights users on 12/28. 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.
lun. 12/295:00 amSEA - SAT
2 stops8h 35mSouthwest
lun. 1/55:35 amSAT - SEA
1 stop6h 35mSouthwest
Deal found 12/28$445
This Southwest deal was found by Cheapflights users on 12/28. 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.
lun. 12/291:25 pmSEA - SAT
2 stops8h 30mSouthwest
ven. 1/92:45 pmSAT - SEA
2 stops10h 20mSouthwest
Deal found 12/28$479
This American Airlines deal was found by Cheapflights users on 12/27. 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.
mer. 12/313:00 pmPSC - SAT
1 stop6h 23mAmerican Airlines
ven. 1/28:29 amSAT - PSC
1 stop7h 20mAmerican Airlines
Deal found 12/27$481
This United Airlines deal was found by Cheapflights users on 12/29. 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.
lun. 12/291:35 pmSEA - SAT
1 stop8h 24mUnited Airlines
mar. 12/307:40 amSAT - SEA
1 stop7h 07mUnited Airlines
Deal found 12/29$488
This United Airlines deal was found by Cheapflights users on 12/28. 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.
mar. 12/303:50 pmSEA - SAT
1 stop5h 57mUnited Airlines
dim. 1/111:20 pmSAT - SEA
2 stops10h 38mUnited Airlines
Deal found 12/28$490
This Southwest deal was found by Cheapflights users on 12/29. 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.
mer. 12/316:35 amSEA - SAT
2 stops13h 15mSouthwest
mar. 1/62:45 pmSAT - SEA
2 stops9h 45mSouthwest
Deal found 12/29$492
This Southwest deal was found by Cheapflights users on 12/28. 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.
lun. 12/292:45 pmSEA - SAT
1 stop7h 10mSouthwest
mer. 12/316:25 pmSAT - SEA
1 stop6h 30mSouthwest
Deal found 12/28$493
This United Airlines deal was found by Cheapflights users on 12/28. 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.
mer. 12/317:12 pmSEA - SAT
2 stops13h 28mUnited Airlines
mer. 1/79:50 amSAT - SEA
2 stops10h 36mUnited Airlines
Deal found 12/28$495
This Southwest deal was found by Cheapflights users on 12/28. 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.
lun. 12/292:45 pmSEA - SAT
1 stop7h 10mSouthwest
jeu. 1/13:05 pmSAT - SEA
2 stops9h 50mSouthwest
Deal found 12/28$498

Find flight deals from Washington to San Antonio

Keep the following information in mind while searching for Washington to San Antonio flight deals. Data was last updated décembre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$197
(Alaska Airlines)

One-way from

$61
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$475

Good round-trip deal

$254 or less

Good one-way deal

$268 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Antonio flights.
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From Washington to San Antonio
Search Deals
One-way flight from Washington to San Antonio
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 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 Washington to San Antonio.
Search Deals
Price to beat on a one-way flight from Washington to San Antonio.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 décembre 30, 2025.
Use the filters below to find and compare flights from Washington to San Antonio that are best for you.

Fly from

Washington

Fly to

San Antonio

Route

Depart

Return

Price

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mer. 2/25

11:09 am-5:10 pm

Nonstop4h 01m

San Antonio

sam. 2/28

6:06 pm-8:43 pm

Nonstop4h 37m

$197

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mer. 2/4

11:40 am-5:45 pm

Nonstop4h 05m

San Antonio

mer. 2/11

6:46 pm-9:22 pm

Nonstop4h 36m

$197

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mar. 2/24

11:09 am-5:10 pm

Nonstop4h 01m

San Antonio

mar. 3/3

6:06 pm-8:43 pm

Nonstop4h 37m

$197

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

lun. 3/16

1:30 pm-12:16 am

1 stop8h 46m

San Antonio

jeu. 3/19

7:00 am-12:25 pm

1 stop7h 25m

$215

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mar. 2/24

5:30 am-1:43 pm

1 stop6h 13m

San Antonio

sam. 2/28

7:35 am-2:44 pm

1 stop9h 09m

$217

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

sam. 2/21

1:38 pm-9:28 pm

1 stop5h 50m

San Antonio

mar. 3/3

4:29 pm-11:12 pm

1 stop8h 43m

$217

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mar. 2/24

5:30 am-1:43 pm

1 stop6h 13m

San Antonio

mar. 3/3

5:59 pm-12:09 am

1 stop8h 10m

$217

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

ven. 3/20

5:30 am-1:35 pm

1 stop6h 05m

San Antonio

mar. 3/24

7:35 am-12:49 pm

1 stop7h 14m

$226

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

dim. 2/22

5:30 am-1:43 pm

1 stop6h 13m

San Antonio

mar. 3/3

5:25 am-2:20 pm

1 stop10h 55m

$226

SeattleSan Antonio

SEA - SAT

SEASAT

Seattle/Tacoma Intl

mar. 2/24

4:40 pm-12:41 am

1 stop6h 01m

San Antonio

ven. 2/27

1:13 pm-6:29 pm

1 stop7h 16m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 55 results
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Best time to book a flight from Washington to San Antonio

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

What is the cheapest month to book a flight from State of Washington to San Antonio?

Currently, February is the cheapest month in which you can book a flight from State of Washington to San Antonio (average of $97). Flying from State of Washington to San Antonio in June is currently the most expensive (average of $222). 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 WA to SAT?

Find hourly flight availability from Washington 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 décembre 30, 2025.

When flying from State of Washington to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to San Antonio

Explore weekly flight availability from Washington 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 décembre 30, 2025.

The most flights from USWA to SAT are scheduled on a Monday (8 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

Related info for your journey

Find useful and relevant information for your journey from Washington 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 airport do you fly into for flights to San Antonio from Washington?

    If you book a flight to San Antonio from Washington, you will be flying to San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio.

  • How popular is this State of Washington to San Antonio flight route?

    This flight path from Washington to San Antonio was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from State of Washington to San Antonio?

    For as low as $197, Alaska Airlines can have you in San Antonio from State of Washington in 4h 01m. The distance from State of Washington to San Antonio is about 1772 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of Washington to San Antonio one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $67. Frontier flights start at $74 while deals on American Airlines start at $79 one-way.

  • What are the most popular routes from State of Washington to San Antonio?

    The most popular flight routes from State of Washington to San Antonio are Seattle/Tacoma Intl - San Antonio, Portland - San Antonio and Spokane - San Antonio.

  • What are the most reliable airlines from State of Washington to San Antonio?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to San Antonio on time: Air Tahiti Nui (85%), Alaska Airlines (84%), Hawaiian Airlines (82%).

  • What are the cheapest flights from State of Washington to San Antonio?

    On average you can expect to pay $372 for a flight from State of Washington to San Antonio. The cheapest flight overall is $188 while the most popular route, (Seattle/Tacoma Intl - San Antonio) is currently priced at $187.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to San Antonio?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to San Antonio (average of $97). Flying from State of Washington to San Antonio in June is currently the most expensive (average of $222). 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
New Braunfels
Kerrville

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Alternative routes for Washington to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Washington to San Antonio

Discover the top 8 airlines that operate flights from Washington 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 décembre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$152Average$322FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$163Average$213FlexibilityNo cancel feeOn-time65%
FrontierCheapest$164Average$268FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$168Average$397FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$180Average$418FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$194Average$407FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$197Average$377FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$201Average$356FlexibilityNo cancel feeOn-time69%

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