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

$105+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DCA
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
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 61 days in advance, depart on a Saturday 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 March 15, 2026.

This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:45 am
SAT
-
DCA
1 stop13h 14m
Frontier
Thu 4/27:00 am
DCA
-
SAT
1 stop18h 19m
Frontier
Deal found 3/13$250
This Frontier deal was found by Cheapflights users on 3/14. 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.
Thu 4/163:00 pm
SAT
-
DCA
1 stop24h 59m
Frontier
Thu 4/236:00 pm
DCA
-
SAT
1 stop21h 15m
Frontier
Deal found 3/14$251
This Gotogate deal was found by Cheapflights users on 3/14. 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.
Tue 3/316:45 am
SAT
-
DCA
1 stop14h 14m
Frontier
Sat 4/47:00 am
DCA
-
SAT
1 stop18h 19m
Frontier
Deal found 3/14$259
This Frontier deal was found by Cheapflights users on 3/14. 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.
Mon 3/3010:05 am
SAT
-
DCA
1 stop10h 54m
Frontier
Mon 4/66:00 pm
DCA
-
SAT
1 stop7h 19m
Frontier
Deal found 3/14$260
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:00 pm
SAT
-
DCA
1 stop21h 00m
Frontier
Sun 5/38:00 am
DCA
-
SAT
1 stop7h 13m
Frontier
Deal found 3/12$263
This Frontier deal was found by Cheapflights users on 3/14. 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.
Fri 3/276:45 am
SAT
-
DCA
1 stop9h 14m
Frontier
Tue 4/76:00 pm
DCA
-
SAT
1 stop7h 19m
Frontier
Deal found 3/14$265
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 3/316:00 am
SAT
-
DCA
Nonstop3h 12m
American Airlines
Wed 4/155:30 pm
DCA
-
SAT
Nonstop3h 35m
American Airlines
Deal found 3/10$269
This Frontier deal was found by Cheapflights users on 3/14. 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.
Mon 3/3010:05 am
SAT
-
DCA
1 stop10h 54m
Frontier
Fri 4/31:00 pm
DCA
-
SAT
1 stop12h 19m
Frontier
Deal found 3/14$270
This Frontier deal was found by Cheapflights users on 3/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3010:05 am
SAT
-
DCA
1 stop10h 54m
Frontier
Tue 4/76:00 pm
DCA
-
SAT
1 stop7h 19m
Frontier
Deal found 3/12$271
This Booking.com deal was found by Cheapflights users on 3/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:54 pm
SAT
-
DCA
1 stop25h 04m
Frontier
Sat 5/166:00 pm
DCA
-
SAT
1 stop25h 59m
Frontier
Deal found 3/13$272
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/192:59 pm
SAT
-
DCA
1 stop21h 01m
Frontier
Fri 4/241:59 pm
DCA
-
SAT
1 stop26h 10m
Frontier
Deal found 3/12$277
This Priceline deal was found by Cheapflights users on 3/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3010:05 am
SAT
-
DCA
1 stop10h 54m
Frontier
Sun 4/51:00 pm
DCA
-
SAT
1 stop12h 19m
Frontier
Deal found 3/10$280

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 March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Expedia)

One-way from

$105
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$465

Good round-trip deal

$329 or less

Good one-way deal

$253 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. 5% potential increase in price ($18 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 March 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 March 15, 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

Tue 4/7

3:50 pm-11:00 pm

1 stop6h 10m

Washington, D.C. Reagan-National

Wed 4/8

6:10 am-10:25 am

1 stop5h 15m

$304

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 4/14

1:40 pm-8:50 pm

1 stop6h 10m

Washington, D.C. Reagan-National

Wed 4/15

10:55 am-3:05 pm

1 stop5h 10m

$304

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 5/8

11:50 am-6:59 pm

1 stop6h 09m

Washington, D.C. Reagan-National

Tue 5/12

6:09 am-12:28 pm

1 stop7h 19m

$309

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 5/27

2:27 pm-9:45 pm

1 stop6h 18m

Washington, D.C. Reagan-National

Wed 9/2

7:30 am-1:07 pm

1 stop6h 37m

$309

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 4/18

1:20 pm-9:30 pm

2 stops7h 10m

Washington, D.C. Reagan-National

Sat 4/25

6:00 am-12:25 pm

2 stops7h 25m

$319

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 4/11

6:15 am-2:00 pm

2 stops6h 45m

Washington, D.C. Reagan-National

Tue 4/14

2:40 pm-10:00 pm

2 stops8h 20m

$339
Quickest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 3/31

5:35 am-11:15 am

1 stop4h 40m

Washington, D.C. Reagan-National

Wed 4/1

6:45 pm-11:10 pm

1 stop5h 25m

$360

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 4/21

6:49 am-3:38 pm

1 stop7h 49m

Washington, D.C. Reagan-National

Sat 4/25

6:00 am-5:00 pm

2 stops12h 00m

$384

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 3/27

11:55 am-8:50 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Fri 4/3

6:50 pm-11:40 pm

1 stop5h 50m

$434

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 4/3

4:29 pm-11:39 pm

1 stop6h 10m

Washington, D.C. Reagan-National

Tue 4/7

6:00 pm-12:38 am

1 stop7h 38m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 21 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 March.
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

*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?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Reagan-National. Price data was last updated on March 13, 2026.

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, May is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $118). Flying from San Antonio to Washington, D.C. Reagan-National Airport in January is currently the most expensive (average of $249). 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 March 15, 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.

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 March 15, 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
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,318 reviews
Southwest
8.0
Very good
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Delta
7.9
Good
8,293 reviews
Southwest
8.0
Very good
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
United Airlines
7.4
Good
9,427 reviews
Southwest
8.0
Very good
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
American Airlines
7.1
Good
11,472 reviews
Southwest
8.0
Very good
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Frontier
5.7
Fair
3,032 reviews
Southwest
8.0
Very good
4,318 reviews

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

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, Southwest can have you in Washington, D.C. Reagan-National Airport from San Antonio in 6h 09m. 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 $85, 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 Delta and Southwest - these airlines can fly you to your destination from $153 and $220, respectively. Frontier is 75% 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 American Airlines, with whom users have recently found tickets for as low as $94. 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 $331, our data indicates the cheapest price to be $213. The most popular route (San Antonio - Washington, D.C. Reagan-National), is priced around $265.

  • 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, May is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $118). Flying from San Antonio to Washington, D.C. Reagan-National Airport in January is currently the most expensive (average of $249). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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 March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$178FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$321FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$220Average$316FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$229Average$337FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$259Average$345FlexibilityNo 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.