HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$141+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SAT
Jul 4 — Jul 111
Sat 7/4
Sat 7/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Antonio are usually found in September or January, booked 64 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap 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 June 4, 2026.

This Gotogate deal was found by Cheapflights users on 5/30. 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.
Fri 7/37:00 am
DCA
-
SAT
1 stop12h 56m
Frontier
Thu 7/97:39 pm
SAT
-
DCA
1 stop16h 12m
Frontier
Deal found 5/30$310
This American Airlines deal was found by Cheapflights users on 5/31. 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 7/36:00 pm
DCA
-
SAT
Nonstop3h 41m
American Airlines
Thu 7/96:40 am
SAT
-
DCA
Nonstop3h 22m
American Airlines
Deal found 5/31$311
This Booking.com deal was found by Cheapflights users on 5/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:00 pm
DCA
-
SAT
1 stop25h 56m
Frontier
Tue 6/307:51 pm
SAT
-
DCA
1 stop16h 06m
Frontier
Deal found 5/31$313
This Southwest deal was found by Cheapflights users on 6/2. 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.
Wed 6/2411:35 am
DCA
-
SAT
1 stop4h 45m
Southwest
Fri 6/263:40 pm
SAT
-
DCA
1 stop6h 05m
Southwest
Deal found 6/2$314
This Southwest deal was found by Cheapflights users on 6/2. 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.
Wed 9/166:50 pm
DCA
-
SAT
1 stop5h 05m
Southwest
Sat 9/196:10 am
SAT
-
DCA
1 stop4h 55m
Southwest
Deal found 6/2$315
This Booking.com deal was found by Cheapflights users on 6/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am
DCA
-
SAT
1 stop12h 56m
Frontier
Fri 8/287:51 pm
SAT
-
DCA
1 stop20h 06m
Frontier
Deal found 6/1$317
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:35 pm
DCA
-
SAT
1 stop6h 57m
Delta
Tue 7/75:20 am
SAT
-
DCA
1 stop5h 07m
Delta
Deal found 6/2$319
This Southwest deal was found by Cheapflights users on 6/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:50 am
DCA
-
SAT
1 stop5h 20m
Southwest
Mon 8/245:40 pm
SAT
-
DCA
1 stop4h 40m
Southwest
Deal found 6/1$320
This Super.com deal was found by Cheapflights users on 6/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:00 am
DCA
-
SAT
1 stop12h 44m
Frontier
Thu 7/307:39 pm
SAT
-
DCA
1 stop16h 12m
Frontier
Deal found 6/2$321
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:00 am
DCA
-
SAT
1 stop12h 56m
Frontier
Wed 6/247:51 pm
SAT
-
DCA
1 stop16h 06m
Frontier
Deal found 6/3$323
This Southwest deal was found by Cheapflights users on 6/3. 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.
Thu 7/26:15 am
DCA
-
SAT
1 stop5h 10m
Southwest
Mon 7/65:25 pm
SAT
-
DCA
1 stop4h 55m
Southwest
Deal found 6/3$324

Find 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 June 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$310
(Gotogate)

One-way from

$141
(Frontier)

Popular in

May

Cheapest in

September

Average price

$423

Good round-trip deal

$319 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-San Antonio flights.
Search Deals
From Washington, D.C. Reagan-National to San Antonio
Search Deals
One-way flight from Washington, D.C. Reagan-National to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($48 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 June 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to San Antonio.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to San Antonio.
Search Deals

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 June 4, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 7/22

6:00 am-10:34 am

1 stop5h 34m

San Antonio

Fri 7/31

12:04 pm-8:47 pm

1 stop7h 43m

$319

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 7/30

6:15 am-10:25 am

1 stop5h 10m

San Antonio

Tue 8/11

4:20 pm-11:55 pm

2 stops6h 35m

$320
Quickest round-trip

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 8/13

6:50 am-11:10 am

1 stop5h 20m

San Antonio

Mon 8/17

5:40 pm-11:20 pm

1 stop4h 40m

$320

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 7/3

3:00 pm-11:05 pm

2 stops9h 05m

San Antonio

Fri 7/10

4:50 pm-10:55 pm

1 stop5h 05m

$334

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Mon 7/27

11:45 am-5:05 pm

2 stops6h 20m

San Antonio

Fri 7/31

5:20 am-12:20 pm

1 stop6h 00m

$334

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 7/3

3:00 pm-11:05 pm

2 stops9h 05m

San Antonio

Wed 7/8

5:45 am-3:00 pm

2 stops8h 15m

$393

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 8/28

8:20 am-3:43 pm

1 stop8h 23m

San Antonio

Tue 9/1

12:00 pm-9:05 pm

1 stop8h 05m

$404

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 7/8

6:00 am-11:09 am

1 stop6h 09m

San Antonio

Fri 7/10

2:35 pm-8:47 pm

1 stop5h 12m

$432

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 7/2

3:00 pm-11:05 pm

2 stops9h 05m

San Antonio

Mon 7/6

3:40 pm-10:50 pm

1 stop6h 10m

$438

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Mon 6/15

7:30 pm-12:33 am

1 stop6h 03m

San Antonio

Mon 6/22

4:00 pm-10:59 pm

1 stop5h 59m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/30

Showing 1-10 of 18 resultsSorted by cheapest first
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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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. Reagan-National Airport-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. Reagan-National Airport-San Antonio flight deals on Cheapflights vs. FlightHub >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 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 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?

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 63 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, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $289). Flying from Washington, D.C. Reagan-National Airport to San Antonio in May is currently the most expensive (average of $489). 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 June 4, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to San Antonio as you normally would.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to San Antonio?

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 June 4, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
8.0
Very good
4,256 reviews
Southwest
8.0
Very good
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Delta
7.9
Good
8,395 reviews
Southwest
8.0
Very good
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
United Airlines
7.4
Good
9,774 reviews
Southwest
8.0
Very good
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
American Airlines
7.1
Good
11,641 reviews
Southwest
8.0
Very good
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Frontier
5.6
Fair
2,914 reviews
Southwest
8.0
Very good
4,256 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

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 2 inbound flights from Washington, D.C. Reagan-National per day from 5 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 10m. 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?

    Frontier, at $160, 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 Southwest and American Airlines. Users have found that Frontier is 55% 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?

    $148 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $148 and $155, 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 $349, our data indicates the cheapest price to be $126. The most popular route (Washington, D.C. Reagan-National - San Antonio), is priced around $303.

  • 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, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $289). Flying from Washington, D.C. Reagan-National Airport to San Antonio in May is currently the most expensive (average of $489). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Reagan-National to San Antonio

Discover the top 5 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 June 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$160Average$280FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$208Average$388FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$244Average$363FlexibilityNo cancel feeOn-time71%
DeltaCheapest$250Average$400FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$267Average$405FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.