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$82+ Cheap flights from Reagan-National (DCA) 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SAT
déc. 5 — déc. 121
ven. 12/5
ven. 12/12
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Antonio are usually found in September or February, booked 52 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Reagan-National to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 novembre 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Frontier)

One-way from

$82
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$398

Good round-trip deal

$359 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-San Antonio flights.
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From Washington, D.C. Reagan-National to San Antonio
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One-way flight from Washington, D.C. Reagan-National to San Antonio
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Highest demand for flights based on searches. 15% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Washington, D.C. Reagan-National to San Antonio.
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Price to beat on a one-way flight from Washington, D.C. Reagan-National to San Antonio.
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Find flight deals from Reagan-National to San Antonio

Cheapest flights from Reagan-National to San Antonio
Explore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembre 5, 2025.

This Frontier deal was found by Cheapflights users on 11/5. 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.
jeu. 12/118:00 amDCA - SAT
1 stop11h 58mFrontier
dim. 12/1410:25 amSAT - DCA
1 stop10h 34mFrontier
Deal found 11/5$257
This American Airlines deal was found by Cheapflights users on 11/3. 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.
lun. 12/17:59 pmDCA - SAT
Nonstop4h 06mAmerican Airlines
lun. 12/86:48 amSAT - DCA
Nonstop3h 12mAmerican Airlines
Deal found 11/3$258
This American Airlines deal was found by Cheapflights users on 11/3. 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.
jeu. 12/117:44 pmDCA - SAT
Nonstop3h 51mAmerican Airlines
mar. 12/168:28 amSAT - DCA
1 stop6h 55mAmerican Airlines
Deal found 11/3$262
This American Airlines deal was found by Cheapflights users on 11/3. 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.
lun. 11/247:59 pmDCA - SAT
Nonstop4h 06mAmerican Airlines
mar. 12/26:50 amSAT - DCA
Nonstop3h 09mAmerican Airlines
Deal found 11/3$263
This United Airlines deal was found by Cheapflights users on 11/3. 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. 11/264:17 pmDCA - SAT
1 stop7h 10mUnited Airlines
jeu. 11/275:30 amSAT - DCA
1 stop4h 59mUnited Airlines
Deal found 11/3$264
This Southwest deal was found by Cheapflights users on 11/2. 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. 12/227:30 pmDCA - SAT
1 stop6h 55mSouthwest
lun. 1/53:00 pmSAT - DCA
1 stop4h 45mSouthwest
Deal found 11/2$267
This American Airlines deal was found by Cheapflights users on 11/3. 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.
jeu. 12/46:38 pmDCA - SAT
1 stop6h 09mAmerican Airlines
lun. 12/86:48 amSAT - DCA
Nonstop3h 12mAmerican Airlines
Deal found 11/3$268
This United Airlines deal was found by Cheapflights users on 11/3. 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. 12/25:00 pmDCA - SAT
1 stop7h 00mUnited Airlines
mer. 12/1011:47 amSAT - DCA
1 stop5h 56mUnited Airlines
Deal found 11/3$269
This Southwest deal was found by Cheapflights users on 11/4. 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. 12/33:20 pmDCA - SAT
2 stops7h 35mSouthwest
mer. 12/106:50 amSAT - DCA
1 stop4h 45mSouthwest
Deal found 11/4$270
This Frontier deal was found by Cheapflights users on 11/4. 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.
lun. 11/178:15 amDCA - SAT
1 stop12h 15mFrontier
jeu. 11/207:00 amSAT - DCA
1 stop8h 57mFrontier
Deal found 11/4$272
This Southwest deal was found by Cheapflights users on 11/3. 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. 12/246:55 amDCA - SAT
1 stop11h 55mSouthwest
mer. 12/316:20 amSAT - DCA
2 stops7h 45mSouthwest
Deal found 11/3$273

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 novembre 5, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Antonio that are best for you.

Fly from

Reagan-National

Fly to

San Antonio

Route

Depart

Return

Price

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

ven. 1/16

8:00 am-3:10 pm

1 stop8h 10m

San Antonio

mar. 1/20

10:15 am-4:00 pm

1 stop4h 45m

$267

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

lun. 12/22

7:30 pm-1:25 am

1 stop6h 55m

San Antonio

lun. 1/5

3:00 pm-8:45 pm

1 stop4h 45m

$267

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

ven. 12/12

6:02 am-10:56 am

1 stop5h 54m

San Antonio

ven. 12/19

4:25 pm-11:08 pm

1 stop5h 43m

$269

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

lun. 11/24

4:34 pm-10:56 pm

1 stop7h 22m

San Antonio

mar. 12/2

4:14 pm-10:04 pm

1 stop4h 50m

$269

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

jeu. 12/11

6:05 am-11:55 am

2 stops6h 50m

San Antonio

jeu. 12/11

2:30 pm-10:55 pm

1 stop7h 25m

$274

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

mar. 12/16

6:00 am-11:25 am

1 stop6h 25m

San Antonio

ven. 12/26

6:45 am-1:00 pm

1 stop5h 15m

$303

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

mar. 12/30

8:25 pm-1:20 am

1 stop5h 55m

San Antonio

dim. 1/4

5:30 am-3:30 pm

2 stops9h 00m

$308

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

jeu. 12/4

3:20 pm-9:55 pm

2 stops7h 35m

San Antonio

sam. 12/6

6:00 am-1:55 pm

1 stop6h 55m

$309

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

ven. 12/26

6:50 pm-12:15 am

1 stop6h 25m

San Antonio

jeu. 1/1

6:50 am-12:35 pm

1 stop4h 45m

$313

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

dim. 1/4

2:00 pm-12:17 am

1 stop11h 17m

$94

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 18 results
1
2

Compare providers for flights from Reagan-National 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 Reagan-National to San Antonio in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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. Reagan-National Airport-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-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 Reagan-National to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Reagan-National 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. Reagan-National Airport to San Antonio

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

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to San Antonio. Price data was last updated on October 31, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to San Antonio, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $153). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $250). 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 DCA to SAT?

Find hourly flight availability from Reagan-National 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 novembre 5, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to San Antonio in the afternoon. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to San Antonio flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 novembre 5, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Reagan-National Airport to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,004 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,002 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,042 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Washington, D.C. Reagan-National. On average, San Antonio has 1 inbound flight from Washington, D.C. Reagan-National per day from 4 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from Washington, D.C. Reagan-National Airport to San Antonio?

    Departing from Washington, D.C. Reagan-National Airport to San Antonio will take you 5h 54m. There are 1378 mi between Washington, D.C. Reagan-National Airport and San Antonio. This flight may include one or multiple stops.

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

    Southwest, at $224, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to San Antonio.Alternate airlines to your destination round-trip include American Airlines and Delta. Users have found that Southwest is 38% cheaper than the other options available to this destination.

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

    $94 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $114 and $135, respectively.

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

    Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to San Antonio? While on average our users pay $342, our data indicates the cheapest price to be $148. The most popular route (Washington, D.C. Reagan-National - San Antonio), is priced around $186.

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

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

  • How can I find direct flights from Reagan-National to San Antonio?

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

  • Can I find deals for business class flights from Reagan-National to San Antonio?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to San Antonio?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $153). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $250). 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 Reagan-National to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Reagan-National to San Antonio

Discover the top 4 airlines that operate flights from Reagan-National 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 novembre 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$224Average$436FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$231Average$341FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$399FlexibilityNo cancel feeOn-time69%

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