HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$110+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DCA
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Reagan-National 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 San Antonio to Washington, D.C. Reagan-National are usually found in September or August, booked 62 days in advance, depart on a Thursday or Friday 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 May 13, 2026.

This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:15 am
SAT
-
DCA
Nonstop3h 19m
American Airlines
Wed 6/106:32 pm
DCA
-
SAT
Nonstop3h 43m
American Airlines
Deal found 5/10$309
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/44:20 pm
SAT
-
DCA
1 stop5h 00m
Southwest
Fri 8/76:50 am
DCA
-
SAT
1 stop5h 20m
Southwest
Deal found 5/8$310
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.
Tue 7/216:10 am
SAT
-
DCA
1 stop4h 55m
Southwest
Thu 7/236:40 pm
DCA
-
SAT
1 stop6h 40m
Southwest
Deal found 5/11$314
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:54 pm
SAT
-
DCA
1 stop25h 04m
Frontier
Sun 6/77:00 am
DCA
-
SAT
1 stop12h 59m
Frontier
Deal found 5/11$315
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.
Fri 6/261:20 pm
SAT
-
DCA
1 stop5h 49m
United Airlines
Tue 6/304:59 pm
DCA
-
SAT
1 stop6h 43m
United Airlines
Deal found 5/11$319
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:54 pm
SAT
-
DCA
1 stop25h 04m
Frontier
Sun 5/316:00 pm
DCA
-
SAT
1 stop25h 59m
Frontier
Deal found 5/11$322
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.
Wed 5/276:15 am
SAT
-
DCA
Nonstop3h 19m
American Airlines
Wed 9/26:15 pm
DCA
-
SAT
Nonstop3h 41m
American Airlines
Deal found 5/12$323
This Southwest deal was found by Cheapflights users on 5/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:40 pm
SAT
-
DCA
1 stop6h 05m
Southwest
Thu 7/96:15 am
DCA
-
SAT
1 stop5h 10m
Southwest
Deal found 5/9$324
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:30 pm
SAT
-
DCA
1 stop8h 15m
Southwest
Wed 6/36:10 am
DCA
-
SAT
1 stop5h 15m
Southwest
Deal found 5/8$328
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 6/264:00 pm
SAT
-
DCA
1 stop5h 59m
Delta
Mon 6/291:42 pm
DCA
-
SAT
1 stop7h 59m
Delta
Deal found 5/11$329
This Booking.com deal was found by Cheapflights users on 5/7. 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.
Sat 5/167:54 pm
SAT
-
DCA
1 stop16h 05m
Frontier
Sat 5/231:59 pm
DCA
-
SAT
1 stop30h 00m
Frontier
Deal found 5/7$334

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 May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(American Airlines)

One-way from

$110
(Super.com)

Popular in

March

Cheapest in

September

Average price

$363

Good round-trip deal

$343 or less

Good one-way deal

$174 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. 11% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 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

Wed 7/15

7:25 am-4:10 pm

1 stop7h 45m

Washington, D.C. Reagan-National

Sat 7/25

6:05 am-11:50 am

1 stop6h 45m

$319

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 6/5

5:57 pm-11:59 pm

1 stop5h 02m

Washington, D.C. Reagan-National

Sat 6/6

5:05 pm-10:58 pm

1 stop6h 53m

$329

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 7/30

4:12 pm-10:48 pm

1 stop5h 36m

Washington, D.C. Reagan-National

Sun 8/2

6:00 am-10:34 am

1 stop5h 34m

$329
Quickest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 5/29

5:45 pm-11:25 pm

1 stop4h 40m

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-10:10 am

1 stop5h 10m

$329

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 10/10

2:10 pm-9:15 pm

1 stop6h 05m

Washington, D.C. Reagan-National

Tue 10/13

7:00 am-1:22 pm

1 stop7h 22m

$329

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 5/28

5:20 am-11:32 am

1 stop5h 12m

Washington, D.C. Reagan-National

Mon 6/1

7:30 pm-12:44 am

1 stop6h 14m

$348

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 7/15

5:45 am-3:00 pm

2 stops8h 15m

Washington, D.C. Reagan-National

Fri 7/17

6:15 am-10:25 am

1 stop5h 10m

$354

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 6/19

4:15 pm-10:47 pm

1 stop5h 32m

Washington, D.C. Reagan-National

Mon 6/22

5:29 pm-10:21 pm

1 stop5h 52m

$374

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 5/29

12:55 pm-9:55 pm

1 stop8h 00m

Washington, D.C. Reagan-National

Tue 6/2

2:40 pm-10:00 pm

2 stops8h 20m

$378

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/13

5:10 am-2:40 pm

2 stops8h 30m

Washington, D.C. Reagan-National

Sun 8/16

6:00 am-11:25 am

1 stop6h 25m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
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 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 61 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, September is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $269). Flying from San Antonio to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $482). 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 May 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 May 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
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
7.9
Good
4,296 reviews
Southwest
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,453 reviews
Southwest
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,705 reviews
Southwest
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,668 reviews
Southwest
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,952 reviews
Southwest
7.9
Good
4,296 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 $329, Southwest can have you in Washington, D.C. Reagan-National Airport from San Antonio in 5h 02m. 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 $118, Delta will fly you from San Antonio to Washington, D.C. Reagan-National Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Southwest - these airlines can fly you to your destination from $143 and $220, respectively. Delta is 67% 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 American Airlines and Southwest, 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 $329, our data indicates the cheapest price to be $151. The most popular route (San Antonio - Washington, D.C. Reagan-National), is priced around $227.

  • 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, September is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $269). Flying from San Antonio to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $482). 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
Tysons
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

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 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 May 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$340FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$143Average$268FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$220Average$328FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$367FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$352FlexibilityNo 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.
Site
Cookie settings©2026 Cheapflights