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Reagan-National

$160+ Cheap flights from San Antonio (SAT) to Reagan-National (DCA)

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DCA
Aug 12 — Aug 191
Wed 8/12
Wed 8/19
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. Reagan-National are usually found in August or September, booked 69 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from San Antonio to Reagan-National

Cheapest flights from San Antonio to Reagan-National
Explore the most affordable flight options available from San Antonio to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 13, 2026.

This Delta deal was found by Cheapflights users on 7/13. 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.
Thu 8/2011:29 am
SAT
-
DCA
1 stop6h 16m
Delta
Sun 8/236:05 am
DCA
-
SAT
1 stop6h 44m
Delta
Deal found 7/13$309
This Southwest deal was found by Cheapflights users on 7/12. 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.
Fri 10/26:10 am
SAT
-
DCA
1 stop4h 50m
Southwest
Tue 10/69:10 am
DCA
-
SAT
2 stops9h 15m
Southwest
Deal found 7/12$310
This Southwest deal was found by Cheapflights users on 7/12. 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.
Fri 8/712:05 pm
SAT
-
DCA
2 stops7h 45m
Southwest
Mon 8/107:55 am
DCA
-
SAT
1 stop7h 20m
Southwest
Deal found 7/12$314
This Trip.com deal was found by Cheapflights users on 7/8. 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.
Wed 7/157:39 pm
SAT
-
DCA
1 stop16h 12m
Frontier
Wed 7/227:00 am
DCA
-
SAT
1 stop12h 44m
Frontier
Deal found 7/8$315
This Southwest deal was found by Cheapflights users on 7/10. 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 8/1412:05 pm
SAT
-
DCA
2 stops7h 45m
Southwest
Sun 8/166:55 am
DCA
-
SAT
2 stops12h 00m
Southwest
Deal found 7/10$317
This Trip.com deal was found by Cheapflights users on 7/8. 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 7/277:39 pm
SAT
-
DCA
1 stop25h 20m
Frontier
Wed 7/291:59 pm
DCA
-
SAT
1 stop29h 45m
Frontier
Deal found 7/8$318
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Thu 8/66:11 am
SAT
-
DCA
Nonstop3h 29m
American Airlines
Mon 8/106:52 am
DCA
-
SAT
1 stop5h 40m
American Airlines
Deal found 7/9$319
This American Airlines deal was found by Cheapflights users on 7/9. 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.
Sat 8/86:24 am
SAT
-
DCA
Nonstop3h 29m
American Airlines
Sat 8/152:59 pm
DCA
-
SAT
1 stop5h 38m
American Airlines
Deal found 7/9$320
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Thu 11/196:49 am
SAT
-
DCA
Nonstop3h 11m
American Airlines
Sun 11/225:00 am
DCA
-
SAT
1 stop7h 08m
American Airlines
Deal found 7/13$321
This Trip.com deal was found by Cheapflights users on 7/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:39 pm
SAT
-
DCA
1 stop16h 12m
Frontier
Sat 8/156:00 pm
DCA
-
SAT
1 stop25h 54m
Frontier
Deal found 7/11$322
This Southwest deal was found by Cheapflights users on 7/11. 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.
Wed 8/123:15 pm
SAT
-
DCA
2 stops6h 50m
Southwest
Mon 8/176:50 am
DCA
-
SAT
1 stop5h 20m
Southwest
Deal found 7/11$324
This Southwest deal was found by Cheapflights users on 7/13. 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 8/2012:05 pm
SAT
-
DCA
2 stops7h 45m
Southwest
Sun 8/236:55 am
DCA
-
SAT
2 stops12h 00m
Southwest
Deal found 7/13$325

Find flight deals from San Antonio to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Reagan-National (DCA). 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 July 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$160
(Southwest)

Popular in

March

Cheapest in

August

Average price

$387

Good round-trip deal

$319 or less

Good one-way deal

$283 or less
Provider with most accurate pricing for San Antonio-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Washington, D.C. Reagan-National flights.
Search Deals
From San Antonio to Washington, D.C. Reagan-National
Search Deals
One-way flight from San Antonio to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from San Antonio to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from San Antonio to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Reagan-National 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 July 13, 2026.
Use the filters below to find and compare flights from San Antonio to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/20

11:29 am-6:45 pm

1 stop6h 16m

Washington, D.C. Reagan-National

Sun 8/23

6:05 am-11:49 am

1 stop6h 44m

$309

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 8/14

12:05 pm-8:50 pm

2 stops7h 45m

Washington, D.C. Reagan-National

Sun 8/16

6:55 am-5:55 pm

2 stops12h 00m

$317
Quickest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/13

11:29 am-6:45 pm

1 stop6h 16m

Washington, D.C. Reagan-National

Sun 8/23

6:00 am-9:48 am

1 stop4h 48m

$329

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/27

12:05 pm-7:34 pm

1 stop6h 29m

Washington, D.C. Reagan-National

Fri 9/4

6:00 am-9:48 am

1 stop4h 48m

$329

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/27

12:05 pm-8:50 pm

2 stops7h 45m

Washington, D.C. Reagan-National

Tue 9/8

9:35 am-5:55 pm

2 stops9h 20m

$338

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 10/15

6:35 am-4:25 pm

2 stops8h 50m

Washington, D.C. Reagan-National

Mon 10/19

3:40 pm-8:05 pm

1 stop5h 25m

$356

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Mon 7/27

4:15 pm-10:48 pm

1 stop5h 33m

Washington, D.C. Reagan-National

Mon 8/3

7:45 pm-12:28 am

1 stop5h 43m

$359

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 10/15

6:35 am-4:25 pm

2 stops8h 50m

Washington, D.C. Reagan-National

Sun 10/18

6:35 pm-12:10 am

1 stop6h 35m

$398
Cheapest one-way
Quickest one-way

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Mon 9/7

5:40 pm-11:20 pm

1 stop4h 40m

$160

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sun 8/9

6:30 am-12:55 pm

1 stop5h 25m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from San Antonio to Reagan-National

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 San Antonio to Reagan-National in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice 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 San Antonio-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Washington, D.C. Reagan-National Airport 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 San Antonio-Washington, D.C. Reagan-National Airport 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 San Antonio to Reagan-National

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

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

The best time to book flights from San Antonio to Washington, D.C. Reagan-National Airport is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $299). Flying from San Antonio to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $485). 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 SAT to DCA?

Find hourly flight availability from San Antonio to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 13, 2026.

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

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

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated July 13, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from San Antonio to Washington, D.C. Reagan-National Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
8.0
Very good
4,249 reviews
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Delta
7.8
Good
8,464 reviews
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
United Airlines
7.4
Good
9,983 reviews
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.1
Good
11,810 reviews
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Frontier
5.6
Fair
2,815 reviews
Southwest
8.0
Very good
4,249 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Reagan-National. 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 from for flights from San Antonio to Washington, D.C. Reagan-National?

    For a flight from San Antonio to Washington, D.C. Reagan-National, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city. San Antonio is the only San Antonio airport and it handles 1 outbound flight to Washington, D.C. Reagan-National per day. 5 airlines have flights to Washington, D.C. Reagan-National from San Antonio on a regular basis.

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

    For as low as $309, Delta can have you in Washington, D.C. Reagan-National Airport from San Antonio in 6h 16m. The distance from San Antonio to Washington, D.C. Reagan-National Airport is about 1378 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $143, Frontier will fly you from San Antonio to Washington, D.C. Reagan-National Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $226 and $236, respectively. Frontier is 61% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $83. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from San Antonio to Washington, D.C. Reagan-National Airport for a low price.

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

    Looking for the cheapest flight from San Antonio to Washington, D.C. Reagan-National Airport? While on average our users pay $357, our data indicates the cheapest price to be $75. The most popular route (San Antonio - Washington, D.C. Reagan-National), is priced around $209.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Reagan-National 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 San Antonio to Washington, D.C. Reagan-National Airport?

    Currently, August is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $299). Flying from San Antonio to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $485). 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. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Laurel
Silver Spring
Clinton
Hunt Valley
Cordova
Woodbridge

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Top 5 airlines flying from San Antonio to Reagan-National

Discover the top 5 airlines that operate flights from San Antonio to Reagan-National. 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 July 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$291FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$226Average$341FlexibilityNo cancel feeOn-time63%
DeltaCheapest$236Average$353FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$392FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$348FlexibilityNo cancel feeOn-time69%

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