$70+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — DCA
Feb 20 — Feb 271
1 adult, Economy
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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 February, booked 78 days in advance, depart on a Saturday or Wednesday and return on a Saturday
Cheap flight deals from San Antonio to Reagan-National
Cheapest flights from San Antonio to Reagan-NationalExplore 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 January 21, 2026.
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 January 21, 2026.
This American Airlines deal was found by Cheapflights users on 1/21. 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 4/306:00 am
SAT
- DCA
Nonstop3h 23m
American Airlines
Mon 5/45:32 pm
DCA
- SAT
Nonstop3h 41m
American Airlines
Deal found 1/21![American Airlines logo]()
$249
This Expedia deal was found by Cheapflights users on 1/19. 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.
Fri 4/106:45 am
SAT
- DCA
1 stop9h 14m
Frontier
Sun 4/127:00 am
DCA
- SAT
1 stop18h 19m
Frontier
Deal found 1/19![Frontier logo]()
$250
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/1311:43 am
SAT
- DCA
1 stop6h 01m
United Airlines
Mon 2/236:00 pm
DCA
- SAT
1 stop6h 12m
United Airlines
Deal found 1/21![United Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 1/20. 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 3/243:10 pm
SAT
- DCA
1 stop4h 45m
Southwest
Thu 3/266:10 am
DCA
- SAT
1 stop6h 05m
Southwest
Deal found 1/20![Southwest logo]()
$269
This Frontier deal was found by Cheapflights users on 1/20. 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 3/66:45 am
SAT
- DCA
1 stop9h 14m
Frontier
Tue 3/102:00 pm
DCA
- SAT
1 stop11h 17m
Frontier
Deal found 1/20![Frontier logo]()
$275
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/186:00 am
SAT
- DCA
Nonstop3h 11m
American Airlines
Sun 2/225:45 pm
DCA
- SAT
Nonstop3h 56m
American Airlines
Deal found 1/20![American Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 3/58:25 pm
SAT
- DCA
1 stop15h 37m
Frontier
Tue 3/108:00 am
DCA
- SAT
1 stop17h 17m
Frontier
Deal found 1/20![Frontier logo]()
$281
This Expedia deal was found by Cheapflights users on 1/21. 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.
Fri 2/138:22 pm
SAT
- DCA
1 stop15h 38m
Frontier
Mon 3/162:00 pm
DCA
- SAT
1 stop11h 17m
Frontier
Deal found 1/21![Frontier logo]()
$288
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/186:00 am
SAT
- DCA
Nonstop3h 11m
American Airlines
Wed 3/44:59 pm
DCA
- SAT
1 stop5h 59m
American Airlines
Deal found 1/21![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/1311:43 am
SAT
- DCA
1 stop6h 01m
United Airlines
Mon 2/166:00 am
DCA
- SAT
1 stop5h 47m
United Airlines
Deal found 1/21![United Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 1/20. 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 4/16:00 am
SAT
- DCA
Nonstop3h 12m
American Airlines
Fri 4/175:32 pm
DCA
- SAT
Nonstop3h 41m
American Airlines
Deal found 1/20![American Airlines logo]()
$293
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 January 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $249 (American Airlines) |
One-way from | $70 (Mytrip) |
Popular in | December |
Cheapest in | September |
Average price | $393 |
Good round-trip deal | $309 or less |
Good one-way deal | $158 or less |
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 January 21, 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
San Antonio
Fly to
Reagan-National
Route
Depart
Return
Price
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Thu 2/12
6:00 am-10:11 am
Nonstop3h 11m
Washington, D.C. Reagan-National
Sun 2/15
5:45 pm-8:41 pm
Nonstop3h 56m
$249
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Fri 4/10
6:45 am-9:59 pm
1 stop14h 14m
Washington, D.C. Reagan-National
Sun 4/12
7:00 am-12:19 am
1 stop18h 19m
$250
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Sat 3/28
6:13 am-3:00 pm
1 stop7h 47m
Washington, D.C. Reagan-National
Mon 3/30
7:35 pm-12:38 am
1 stop6h 03m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Sat 2/21
2:10 pm-8:59 pm
1 stop5h 49m
Washington, D.C. Reagan-National
Mon 2/23
5:05 pm-11:12 pm
1 stop7h 07m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Wed 3/25
5:10 am-11:34 am
1 stop5h 24m
Washington, D.C. Reagan-National
Wed 4/1
6:25 am-12:47 pm
1 stop7h 22m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Tue 4/21
1:39 pm-9:34 pm
1 stop6h 55m
Washington, D.C. Reagan-National
Sat 4/25
6:00 am-12:17 pm
1 stop7h 17m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Wed 3/25
12:24 pm-6:33 pm
1 stop5h 09m
Washington, D.C. Reagan-National
Mon 3/30
7:35 pm-12:38 am
1 stop6h 03m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Tue 4/21
10:46 am-5:00 pm
1 stop5h 14m
Washington, D.C. Reagan-National
Sun 4/26
6:00 am-10:54 am
1 stop5h 54m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Wed 4/1
5:30 pm-11:39 pm
1 stop5h 09m
Washington, D.C. Reagan-National
Fri 4/17
6:05 am-11:52 am
1 stop6h 47m
$269
San AntonioWashington, D.C.
SAT - DCA
SATDCA
San Antonio
Fri 2/13
8:22 pm-1:00 pm
1 stop15h 38m
Washington, D.C. Reagan-National
Mon 3/16
2:00 pm-12:17 am
1 stop11h 17m
$288
Showing 1-10 of 21 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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 Expedia the most. Expedia 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
Prices
Airlines
More
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 January 16, 2026.
The best time to book flights from San Antonio to Washington, D.C. Reagan-National Airport is 78 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 January 21, 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.
What’s the top layover airport for flights from San Antonio to Washington, D.C. Reagan-National Airport?
Share of 1-stop round-trip flights from San Antonio to Washington, D.C. Reagan-National Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (MDW) – chosen by Cheapflights users on 67% of 1-stop itineraries from San Antonio to Washington, D.C. Reagan-National Airport on Cheapflights.
What’s the cheapest layover airport for flights from San Antonio to Washington, D.C. Reagan-National Airport?
Average round-trip fare for 1-stop flights from San Antonio to Washington, D.C. Reagan-National Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $184.
What’s the fastest layover option from San Antonio to Washington, D.C. Reagan-National Airport?
Shortest average travel time for 1-stop one-way flights from San Antonio to Washington, D.C. Reagan-National Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 35m.
Which airport typically offers the quickest layover for flights from San Antonio to Washington, D.C. Reagan-National Airport?
Average layover duration for 1-stop one-way flights from San Antonio to Washington, D.C. Reagan-National Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 43m.
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 January 21, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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 locationsAlexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Herndon
Fredericksburg
Linthicum Heights
Rockville
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McLean
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Upper Marlboro
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Antonio to Reagan-National
See prices for flight routes from nearby airports that may be better suited for you.
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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$175 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$194 | Average$324 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$209 | Average$332 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$259 | Average$361 | FlexibilityNo cancel fee | On-time69% |