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$116+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SAT
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Antonio are usually found in September or August, booked 52 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Reagan-National to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Kiwi.com)

One-way from

$116
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$363

Good round-trip deal

$289 or less

Good one-way deal

$193 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-San Antonio flights.
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From Washington, D.C. Reagan-National to San Antonio
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One-way flight from Washington, D.C. Reagan-National to San Antonio
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Highest demand for flights based on searches. 16% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Reagan-National to San Antonio.
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Price to beat on a one-way flight from Washington, D.C. Reagan-National to San Antonio.
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Find flight deals from Reagan-National to San Antonio

Cheapest flights from Reagan-National to San Antonio
Explore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:15 amDCA - SAT
1 stop12h 15mMultiple Airlines
Wed 11/126:45 amSAT - DCA
2 stops29h 17mMultiple Airlines
Deal found 10/14$251
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Thu 12/41:00 pmDCA - SAT
1 stop31h 00mFrontier
Sun 12/77:56 pmSAT - DCA
1 stop15h 09mFrontier
Deal found 10/16$253
This Southwest deal was found by Cheapflights users on 10/16. 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 11/192:40 pmDCA - SAT
1 stop5h 15mSouthwest
Wed 12/311:55 amSAT - DCA
1 stop5h 25mSouthwest
Deal found 10/16$254
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Sat 11/88:15 amDCA - SAT
1 stop7h 02mFrontier
Sat 11/153:12 pmSAT - DCA
1 stop20h 50mFrontier
Deal found 10/16$256
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:31 pmDCA - SAT
1 stop20h 46mFrontier
Sun 11/210:46 pmSAT - DCA
2 stops13h 16mFrontier
Deal found 10/14$257
This Delta deal was found by Cheapflights users on 10/15. 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 12/56:21 pmDCA - SAT
1 stop7h 13mDelta
Sun 12/75:20 amSAT - DCA
1 stop5h 17mDelta
Deal found 10/15$259
This American Airlines deal was found by Cheapflights users on 10/13. 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.
Fri 10/317:59 pmDCA - SAT
Nonstop3h 57mAmerican Airlines
Sun 11/166:50 amSAT - DCA
Nonstop3h 09mAmerican Airlines
Deal found 10/13$263
This Southwest deal was found by Cheapflights users on 10/16. 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 12/33:20 pmDCA - SAT
2 stops7h 35mSouthwest
Sat 12/611:40 amSAT - DCA
1 stop7h 35mSouthwest
Deal found 10/16$264
This Southwest deal was found by Cheapflights users on 10/15. 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 11/123:20 pmDCA - SAT
2 stops7h 35mSouthwest
Wed 11/196:50 amSAT - DCA
1 stop4h 45mSouthwest
Deal found 10/15$265
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:00 pmDCA - SAT
1 stop25h 17mFrontier
Thu 11/1310:46 pmSAT - DCA
2 stops37h 16mFrontier
Deal found 10/14$267
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:00 amDCA - SAT
1 stop5h 30mUnited Airlines
Sat 12/62:22 pmSAT - DCA
1 stop5h 34mUnited Airlines
Deal found 10/14$269

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 October 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Antonio that are best for you.

Fly from

Reagan-National

Fly to

San Antonio

Route

Depart

Return

Price

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 12/3

6:10 am-1:35 pm

1 stop8h 25m

San Antonio

Thu 12/4

6:30 am-2:00 pm

1 stop6h 30m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 12/11

11:00 am-3:30 pm

1 stop5h 30m

San Antonio

Sun 12/14

5:20 pm-11:59 pm

1 stop5h 39m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 12/13

4:15 pm-9:03 pm

1 stop5h 48m

San Antonio

Wed 12/17

1:06 pm-8:40 pm

1 stop6h 34m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 12/5

6:00 am-10:30 am

1 stop5h 30m

San Antonio

Sun 12/7

5:20 am-11:37 am

1 stop5h 17m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sun 11/16

6:06 am-10:55 am

1 stop5h 49m

San Antonio

Thu 11/27

5:15 am-11:39 am

1 stop5h 24m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 12/16

8:15 am-12:35 pm

1 stop5h 20m

San Antonio

Wed 12/24

6:50 am-12:35 pm

1 stop4h 45m

$264

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 1/14

2:45 pm-9:35 pm

2 stops7h 50m

San Antonio

Sat 1/17

10:00 am-4:15 pm

1 stop5h 15m

$264

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 12/2

2:40 pm-6:55 pm

1 stop5h 15m

San Antonio

Sat 12/6

5:20 am-11:40 am

1 stop5h 20m

$264

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 11/8

6:00 am-9:59 am

1 stop4h 59m

San Antonio

Sat 11/15

3:30 pm-9:43 pm

1 stop5h 13m

$264

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 12/2

7:35 pm-12:34 am

1 stop5h 59m

San Antonio

Thu 12/4

4:52 pm-10:40 pm

1 stop4h 48m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 22 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust 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?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to San Antonio. Price data was last updated on October 10, 2025.

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $146). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $250). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to SAT?

Find hourly flight availability from Reagan-National to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to San Antonio in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the morning.

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

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

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

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated October 16, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Reagan-National Airport to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,984 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,982 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,043 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,137 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

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

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Washington, D.C. Reagan-National?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Washington, D.C. Reagan-National. On average, San Antonio has 3 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 30m. 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 $128, 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 64% 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?

    $116 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $125 and $130, 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 $319, our data indicates the cheapest price to be $148. The most popular route (Washington, D.C. Reagan-National - San Antonio), is priced around $212.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $146). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $250). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Reagan-National to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$209FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$224Average$437FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$340FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$349FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$404FlexibilityNo cancel feeOn-time69%

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