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$53+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SAT
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to San Antonio are usually found in July or August, booked 89 days in advance, depart on a Wednesday or Thursday 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 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$108
(Cheapflightsfares)

One-way from

$53
(FlightHub)

Popular in

December

Cheapest in

July

Average price

$358

Good round-trip deal

$256 or less

Good one-way deal

$57 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
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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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 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/11. 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.
Fri 6/67:33 amBWI - SAT
Nonstop3h 38mSpirit Airlines
Mon 6/911:06 amSAT - BWI
Nonstop3h 20mSpirit Airlines
Deal found 5/11$108
This American Airlines deal was found by Cheapflights users on 5/12. 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 7/215:48 pmBWI - SAT
1 stop7h 09mAmerican Airlines
Fri 7/252:13 pmSAT - BWI
1 stop7h 02mAmerican Airlines
Deal found 5/12$187
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/315:48 pmBWI - SAT
1 stop26h 02mMultiple Airlines
Tue 6/31:27 pmSAT - BWI
1 stop20h 37mMultiple Airlines
Deal found 5/11$195
This American Airlines deal was found by Cheapflights users on 5/11. 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 6/67:49 pmDCA - SAT
Nonstop3h 23mAmerican Airlines
Wed 6/116:32 amSAT - DCA
Nonstop3h 22mAmerican Airlines
Deal found 5/11$229
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Sun 5/258:30 amIAD - SAT
Nonstop3h 30mUnited Airlines
Wed 5/282:10 pmSAT - IAD
1 stop5h 42mUnited Airlines
Deal found 5/11$229
This Southwest deal was found by Cheapflights users on 5/12. 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 7/17:55 pmDCA - SAT
1 stop5h 15mSouthwest
Sat 7/56:20 amSAT - DCA
1 stop8h 00mSouthwest
Deal found 5/12$234
This Trip.com deal was found by Cheapflights users on 5/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/265:15 amIAD - SAT
1 stop7h 27mFrontier
Wed 5/2812:27 pmSAT - IAD
1 stop9h 03mFrontier
Deal found 5/12$235
This Delta deal was found by Cheapflights users on 5/11. 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 7/117:52 pmBWI - SAT
1 stop5h 22mDelta
Mon 7/146:11 pmSAT - BWI
1 stop5h 32mDelta
Deal found 5/11$237
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/317:00 amDCA - SAT
1 stop12h 51mFrontier
Thu 6/57:50 pmSAT - DCA
1 stop15h 10mFrontier
Deal found 5/11$242
This Southwest deal was found by Cheapflights users on 5/11. 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.
Fri 6/68:05 pmBWI - SAT
Nonstop3h 35mSouthwest
Wed 6/113:55 pmSAT - BWI
Nonstop3h 25mSouthwest
Deal found 5/11$249
This Delta deal was found by Cheapflights users on 5/12. 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 8/2711:30 amDCA - SAT
1 stop6h 37mDelta
Sun 8/318:00 amSAT - DCA
1 stop5h 44mDelta
Deal found 5/12$249
This Delta deal was found by Cheapflights users on 5/12. 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 8/297:00 amIAD - SAT
1 stop7h 07mDelta
Wed 9/310:45 amSAT - IAD
1 stop4h 57mDelta
Deal found 5/12$249

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 12, 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

Fri 6/6

7:33 am-10:11 am

Nonstop3h 38m

San Antonio

Mon 6/9

11:06 am-3:26 pm

Nonstop3h 20m

$108

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Mon 7/21

5:48 pm-11:57 pm

1 stop7h 09m

San Antonio

Fri 7/25

2:13 pm-10:15 pm

1 stop7h 02m

$187

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sat 5/31

5:48 pm-6:50 pm

1 stop26h 02m

San Antonio

Tue 6/3

1:27 pm-11:04 am

1 stop20h 37m

$195

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Sun 5/25

8:30 am-11:00 am

Nonstop3h 30m

San Antonio

Wed 5/28

2:10 pm-8:52 pm

1 stop5h 42m

$229

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 6/6

7:49 pm-10:12 pm

Nonstop3h 23m

San Antonio

Wed 6/11

6:32 am-10:54 am

Nonstop3h 22m

$229

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Mon 6/2

5:15 am-11:29 am

1 stop7h 14m

San Antonio

Fri 6/6

5:38 pm-12:04 am

1 stop5h 26m

$231

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 7/1

7:55 pm-12:10 am

1 stop5h 15m

San Antonio

Sat 7/5

6:20 am-3:20 pm

1 stop8h 00m

$234

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 7/11

7:52 pm-12:14 am

1 stop5h 22m

San Antonio

Mon 7/14

6:11 pm-12:43 am

1 stop5h 32m

$237

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 5/31

7:00 am-6:51 pm

1 stop12h 51m

San Antonio

Thu 6/5

7:50 pm-12:00 pm

1 stop15h 10m

$242

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 6/6

8:05 pm-10:40 pm

Nonstop3h 35m

San Antonio

Tue 6/10

3:55 pm-8:20 pm

Nonstop3h 25m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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

*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 Expedia the most. Expedia 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 May 9, 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 12, 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 May 11, 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 12, 2025.

The most flights from WAS to SAT are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 12, 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
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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
4,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

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 8 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 ($108), American Airlines ($187), and United Airlines ($229) 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 71% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $53. Frontier flights start at $93 while deals on American Airlines start at $94 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, Washington, D.C. Reagan-National - San Antonio and Baltimore/Washington - 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 (87%), United Airlines (85%) and Air Canada (85%).

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

    Looking at all options, your cheapest flight can be booked for $155. While the most popular route (Washington, D.C. Dulles Intl - San Antonio) can be booked for $200 on average our data indicates $351 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

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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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$278FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$146Average$229FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$202Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$234Average$404FlexibilityNo cancel feeOn-time69%
DeltaCheapest$242Average$383FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$263Average$472FlexibilityNo cancel feeOn-time63%

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