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$78+ Cheap flights from Washington, D.C. (WAS) 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SAT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to San Antonio are usually found in August or July, booked 89 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from Washington, D.C. to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$152
(Cheapflightsfares)

One-way from

$78
(Southwest)

Popular in

December

Cheapest in

August

Average price

$374

Good round-trip deal

$262 or less

Good one-way deal

$115 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San Antonio flights.
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From Washington, D.C. (WAS) to San Antonio
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One-way flight from Washington, D.C. (WAS) to San Antonio
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 Washington, D.C. (WAS) to San Antonio.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to San Antonio.
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Find flight deals from Washington, D.C. to San Antonio

Cheapest flights from Washington, D.C. to San Antonio
Explore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
Tue 5/278:44 pmBWI - SAT
1 stop17h 58mSpirit Airlines
Sat 5/311:27 pmSAT - BWI
1 stop9h 51mSpirit Airlines
Deal found 5/1$152
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:33 amBWI - SAT
Nonstop3h 38mMultiple Airlines
Mon 6/910:31 amSAT - BWI
1 stop28h 55mMultiple Airlines
Deal found 4/30$185
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:00 amDCA - SAT
1 stop6h 13mDelta
Fri 5/301:25 pmSAT - DCA
1 stop7h 16mDelta
Deal found 4/29$237
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/241:20 pmIAD - SAT
1 stop8h 06mDelta
Fri 5/304:35 pmSAT - IAD
1 stop5h 19mDelta
Deal found 4/29$237
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 8/95:25 pmIAD - SAT
1 stop7h 34mUnited Airlines
Tue 8/127:00 amSAT - IAD
Nonstop3h 24mUnited Airlines
Deal found 4/28$239
This Southwest deal was found by Cheapflights users on 4/29. 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.
Tue 7/297:55 pmDCA - SAT
1 stop5h 15mSouthwest
Tue 8/511:15 amSAT - DCA
1 stop5h 00mSouthwest
Deal found 4/29$240
This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/235:15 amIAD - SAT
1 stop7h 27mFrontier
Sat 5/312:18 pmSAT - IAD
1 stop14h 37mFrontier
Deal found 4/29$240
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 5/307:45 pmDCA - SAT
Nonstop3h 39mAmerican Airlines
Thu 6/56:32 amSAT - DCA
Nonstop3h 22mAmerican Airlines
Deal found 4/30$244
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/286:00 amDCA - SAT
1 stop5h 44mUnited Airlines
Sat 5/316:01 pmSAT - DCA
1 stop4h 58mUnited Airlines
Deal found 4/30$246
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/305:23 pmBWI - SAT
1 stop26h 28mFrontier
Sun 6/17:50 pmSAT - BWI
1 stop19h 35mFrontier
Deal found 4/29$250
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/301:00 pmDCA - SAT
1 stop29h 35mFrontier
Sun 5/48:25 pmSAT - DCA
1 stop19h 34mFrontier
Deal found 4/28$261
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Thu 5/2911:54 amIAD - SAT
1 stop6h 14mMultiple Airlines
Wed 6/47:05 amSAT - IAD
2 stops26h 57mMultiple Airlines
Deal found 4/30$262

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. 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 May 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. to San Antonio that are best for you.

Fly from

Washington, D.C.

Fly to

San Antonio

Route

Depart

Return

Price

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Tue 5/27

8:44 pm-1:42 pm

1 stop17h 58m

San Antonio

Sat 5/31

1:27 pm-12:18 am

1 stop9h 51m

$152

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Mon 6/2

7:33 am-10:11 am

Nonstop3h 38m

San Antonio

Mon 6/9

10:31 am-4:26 pm

1 stop28h 55m

$185

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 5/28

6:00 am-11:13 am

1 stop6h 13m

San Antonio

Fri 5/30

1:25 pm-9:41 pm

1 stop7h 16m

$237

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Sat 5/24

1:20 pm-8:26 pm

1 stop8h 06m

San Antonio

Fri 5/30

4:35 pm-10:54 pm

1 stop5h 19m

$237

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 5/17

9:21 pm-9:52 am

1 stop13h 31m

San Antonio

Fri 5/23

10:42 am-7:00 pm

1 stop7h 18m

$240

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 7/29

7:55 pm-12:10 am

1 stop5h 15m

San Antonio

Tue 8/5

11:15 am-5:15 pm

1 stop5h 00m

$240

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 5/23

5:15 am-11:42 am

1 stop7h 27m

San Antonio

Fri 5/30

12:27 pm-11:32 pm

1 stop10h 05m

$240

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Wed 6/4

5:50 pm-8:22 pm

Nonstop3h 32m

San Antonio

Wed 6/18

5:30 am-1:57 pm

1 stop7h 27m

$241

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 5/30

7:45 pm-10:24 pm

Nonstop3h 39m

San Antonio

Thu 6/5

6:32 am-10:54 am

Nonstop3h 22m

$244

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 5/28

6:00 am-10:44 am

1 stop5h 44m

San Antonio

Sat 5/31

6:01 pm-11:59 pm

1 stop4h 58m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 39 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to San Antonio in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 Washington, D.C.-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-San Antonio 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 Washington, D.C.-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 Washington, D.C. to San Antonio

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

How far ahead should I book a flight from Washington, D.C. to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to San Antonio. Price data was last updated on April 25, 2025.

The price you pay for your flight from Washington, D.C. to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to San Antonio (average of $295). Flying from Washington, D.C. 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 WAS to SAT?

Find hourly flight availability from Washington, D.C. 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 May 1, 2025.

It’s typically best to fly out from Washington, D.C. to San Antonio in the evening. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to San Antonio. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Washington, D.C. to San Antonio flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to San Antonio

Explore weekly flight availability from Washington, D.C. 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 May 1, 2025.

The most flights from WAS to SAT are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 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 May 1, 2025.
To help decide which airline to fly from Washington, D.C. to San Antonio, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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, D.C.?

    If you book a flight to San Antonio from Washington, D.C., 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. There are 7 flights from Washington, D.C. to San Antonio per day from 6 different airlines.

  • What are the cheapest airlines flying from Washington, D.C. to San Antonio round-trip?

    According to our current data, Spirit Airlines ($152), Delta ($237), and Frontier ($240) offers the cheapest pricing from Washington, D.C. to San Antonio. You may be able to fly from Washington, D.C. to San Antonio for 60% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to San Antonio one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $78. Spirit Airlines flights start at $82 while deals on Frontier start at $89 one-way.

  • What are the most popular routes from Washington, D.C. to San Antonio?

    The most popular flight routes from Washington, D.C. to San Antonio are Washington, D.C. Dulles Intl - San Antonio, Baltimore/Washington - San Antonio and Washington, D.C. Reagan-National - San Antonio.

  • What are the most reliable airlines from Washington, D.C. to San Antonio?

    The top 3 most reliable airlines when flying from Washington, D.C. to San Antonio are Mesa Airlines (86%), United Airlines (84%) and Air Canada (83%).

  • What are the cheapest flights from Washington, D.C. to San Antonio?

    Looking at all options, your cheapest flight can be booked for $124. While the most popular route (Washington, D.C. Dulles Intl - San Antonio) can be booked for $215 on average our data indicates $482 when flying from Washington, D.C. to San Antonio.

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

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

  • How can I find direct flights from Washington, D.C. 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, D.C. to San Antonio.

  • Can I find deals for business class flights from Washington, D.C. to San Antonio?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to San Antonio (average of $295). Flying from Washington, D.C. 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Alternative routes for Washington, D.C. to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Washington, D.C. to San Antonio

Discover the top 6 airlines that operate flights from Washington, D.C. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$278FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$137Average$226FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$202Average$358FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$234Average$410FlexibilityNo cancel feeOn-time69%
DeltaCheapest$244Average$385FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$263Average$474FlexibilityNo cancel feeOn-time63%

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