DCA - SAT

$95 Find Cheap Flights from Reagan Washington National Airport to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to San Antonio departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Antonio, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San Antonio, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$249
Overall average: $323
American Airlines
Fri 4/10Sun 4/12
DCA - SAT • Non-stop
Cheapest one-way
$95
Typical prices: $166-$491
Frontier
Sat 4/25
DCA - SAT • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
DCA is easily accessible via the city’s metro line.
The #5 VIA bus connects SAT to downtown affordably.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Southwest
Cheapest • from $249 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with American Airlines. Average duration is 3h 56m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Nashville (BNA)
Cheapest • Avg $208 (round-trip)
Nashville (BNA)
Shortest trip • 5h 20m (one-way)
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 16% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Reagan-National to San Antonio (DCA-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to San Antonio

Fri, Apr 10 - Sun, Apr 12
American Airlines Logo
5:30 pm - 8:05 pm
DCA
-
SAT
3h 35mnonstop
American Airlines Logo
6:20 am - 10:43 am
SAT
-
DCA
3h 23mnonstop
$249American Airlines
Tue, Mar 10 - Thu, Mar 12
Frontier Logo
2:00 pm - 12:17 am
DCA
-
SAT
11h 17m
1 stop
Frontier Logo
6:45 am - 4:59 pm
SAT
-
DCA
9h 14m
1 stop
$250Frontier
Sun, Apr 12 - Wed, Apr 15
Frontier Logo
7:00 am - 12:19 am
DCA
-
SAT
18h 19m
1 stop
Frontier Logo
4:49 pm - 4:59 pm
SAT
-
DCA
23h 10m
1 stop
$253Frontier
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
6:00 am - 12:00 pm
DCA
-
SAT
7h 00m
1 stop
Southwest Logo
6:15 am - 2:00 pm
SAT
-
DCA
6h 45m
2 stops
$258Southwest
Tue, Mar 17 - Sat, Mar 21
Frontier Logo
2:00 pm - 12:17 am
DCA
-
SAT
11h 17m
1 stop
Frontier Logo
6:45 am - 4:59 pm
SAT
-
DCA
9h 14m
1 stop
$260Frontier
Tue, Mar 24 - Thu, Mar 26
Frontier Logo
8:00 am - 12:17 am
DCA
-
SAT
17h 17m
1 stop
Frontier Logo
6:45 am - 9:59 pm
SAT
-
DCA
14h 14m
1 stop
$261Frontier
Sat, Jul 4 - Wed, Jul 8
United Airlines Logo
8:20 am - 3:39 pm
DCA
-
SAT
8h 19m
1 stop
United Airlines Logo
7:43 am - 1:57 pm
SAT
-
DCA
5h 14m
1 stop
$264United Airlines
Wed, Apr 29 - Mon, May 4
Southwest Logo
6:10 am - 10:25 am
DCA
-
SAT
5h 15m
1 stop
Southwest Logo
4:45 pm - 10:40 pm
SAT
-
DCA
4h 55m
1 stop
$265Southwest
Sun, May 3 - Wed, May 6
Southwest Logo
6:00 am - 11:15 am
DCA
-
SAT
6h 15m
1 stop
Southwest Logo
7:25 am - 4:10 pm
SAT
-
DCA
7h 45m
1 stop
$266Southwest
Thu, Jun 25 - Mon, Jun 29
Delta Logo
6:00 am - 11:11 am
DCA
-
SAT
6h 11m
1 stop
Delta Logo
2:51 pm - 10:20 pm
SAT
-
DCA
6h 29m
1 stop
$269Delta
Booking Insights

KAYAK's insights & trends for Reagan-National to San Antonio flights

Get data-powered insights and trends into flights from Reagan-National to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to San Antonio?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to San Antonio clicked on KAYAK for each day over the last 12 months.

When flying from Reagan Washington National Airport to San Antonio, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Reagan Washington National Airport, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to San Antonio is September, where tickets cost $289 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $392 and $389 respectively.

Can I save money by flying with a layover from Washington, D.C. Reagan-National Airport to San Antonio?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $317, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to San Antonio, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from Reagan-National to San Antonio

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DCA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low seasonJanuary
Cheapest flight$95
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Reagan Washington National Airport to San Antonio

When to book flights from Reagan-National to San Antonio

Are your dates flexible? Find out the best times to travel from Reagan-National to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to San Antonio flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to San Antonio was $95 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and San Antonio?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Reagan Washington National Airport to San Antonio?

    On your way to San Antonio, you’ll fly out from Washington, D.C. Reagan-National. You’ll be landing at San Antonio.

  • Which airlines offer Wi-Fi service onboard planes from Reagan Washington National Airport to San Antonio?

    American Airlines, and JetBlue offer inflight Wi-Fi service on the Reagan Washington National Airport to San Antonio flight route.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to San Antonio?

    The Airbus A319 is the aircraft model that flies most regularly on the Reagan Washington National Airport to San Antonio flight route.

  • Which airline alliances offer flights from Reagan Washington National Airport to San Antonio?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and San Antonio, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Reagan Washington National Airport to San Antonio?

    There are nonstop flights from Reagan Washington National Airport to San Antonio on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to San Antonio are Southwest and Delta. With an average price for the route of $387 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $374 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Reagan-National Airport to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $253 or less one-way and $273 or less round-trip.

Prefer to fly direct from Reagan Washington National Airport to San Antonio?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Reagan-National to San Antonio.
Find which airlines fly direct from Washington, D.C. Reagan-National Airport to San Antonio Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Reagan-National to San Antonio

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

San Antonio to Washington, D.C. Reagan-National

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 4 airlines serving from Reagan-National to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4299 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

4.0 Okaybyron, Feb 2026
DAL - SAT
Read more Southwest reviews

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

I am an AA flyer for a very long time... AA has yet to disappoint.

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Everything you need to know for your flight from Reagan-National to San Antonio

Information on your arrival and departure airports