DCA - SAT

$168 Find Cheap Flights from Reagan Washington National Airport to San Antonio - Compare and Save

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 9/10. 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.
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Everything you should know

Cheapest round-trip
$309
Typical prices: $319-$468
American Airlines
Fri 10/30Wed 11/4
DCA - SAT • Non-stop
Cheapest non-stop
$309
Typical prices: $271-$335
American Airlines
Fri 8/28Wed 9/2
DCA - SAT • Non-stop
Top airlines
Cheapest • from $309 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines. Average duration is 3h 41m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $331 (round-trip)
Shortest trip • 5h 08m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
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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, Oct 30 - Wed, Nov 4
American Airlines Logo
5:17 pm - 8:10 pm
DCA
-
SAT
3h 53mnonstop
American Airlines Logo
6:00 am - 10:18 am
SAT
-
DCA
3h 18mnonstop
$309American Airlines
Fri, Oct 23 - Mon, Oct 26
Southwest Logo
4:55 pm - 11:55 pm
DCA
-
SAT
8h 00m
2 stops
Southwest Logo
5:25 am - 11:10 am
SAT
-
DCA
4h 45m
1 stop
$310Southwest
Thu, Nov 19 - Thu, Nov 26
Delta Logo
6:00 am - 11:20 am
DCA
-
SAT
6h 20m
1 stop
Delta Logo
6:45 am - 2:38 pm
SAT
-
DCA
6h 53m
1 stop
$314Delta
Mon, Aug 24 - Fri, Aug 28
Southwest Logo
6:50 am - 11:10 am
DCA
-
SAT
5h 20m
1 stop
Southwest Logo
12:05 pm - 8:50 pm
SAT
-
DCA
7h 45m
2 stops
$315Southwest
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
6:00 pm - 6:54 pm
DCA
-
SAT
25h 54m
1 stop
Frontier Logo
7:49 pm - 4:59 pm
SAT
-
DCA
20h 10m
1 stop
$316Frontier
Sat, Oct 3 - Wed, Oct 7
American Airlines Logo
5:00 am - 10:36 am
DCA
-
SAT
6h 36m
1 stop
American Airlines Logo
5:43 pm - 11:59 pm
SAT
-
DCA
5h 16m
1 stop
$317American Airlines
Fri, Aug 28 - Wed, Sep 2
American Airlines Logo
3:12 pm - 7:37 pm
DCA
-
SAT
5h 25m
1 stop
American Airlines Logo
6:11 am - 10:40 am
SAT
-
DCA
3h 29mnonstop
$318American Airlines
Thu, Nov 19 - Thu, Nov 26
Delta Logo
6:00 am - 11:20 am
DCA
-
SAT
6h 20m
1 stop
Delta Logo
4:00 pm - 10:53 pm
SAT
-
DCA
5h 53m
1 stop
$319Delta
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
7:00 am - 6:54 pm
DCA
-
SAT
12h 54m
1 stop
Frontier Logo
7:49 pm - 9:59 pm
SAT
-
DCA
25h 10m
1 stop
$320Frontier
Mon, Sep 14 - Fri, Sep 18
Southwest Logo
6:50 am - 11:10 am
DCA
-
SAT
5h 20m
1 stop
Southwest Logo
11:10 am - 5:50 pm
SAT
-
DCA
5h 40m
1 stop
$324Southwest
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.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to San Antonio departing in October.

Flight prices are typical for this route right now.

Flights to San Antonio from Washington, D.C. Reagan-National Airport usually cost between $306 and $414 in October.
The lowest price found in the past 5 days was $309 on American Airlines (Oct 30-Nov 4).

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 Thursdays and the most expensive ones on Mondays.

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 $299 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is $493 and $448 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $360 on average.

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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 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 season

January

Cheapest flight

$168
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 13% lower on average.
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 5 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to San Antonio was $168 for a one-way ticket and $309 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 $392 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 $403 and an overall rating of 7.8.

  • 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 $144 or less one-way and $309 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 4236 reviews
7.5Entertainment
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
Airline reviews

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

10.0 ExcellentK, Jun 2026
SAN - AUS
Read more Southwest reviews

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

I elected to pay for the upgrades and found very little difference

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.

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.

Pretty standard flight. We left late, but arrived early. The wifi entertainment is always nice. The free snacks and beverages are simple, but appreciated. I'm tall and the seats are an issue. I can deal with a short flight, but any longer, I have to find another airline where I know beforehand I have extra legroom.

It was good. I wish you had gluten free snacks for my husband.

Awesome experience. No in-flight video or meal. Still do not like the boarding process.

On time, good crew, easy flight. Just like the old days!

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

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.

Never nice, United Express partners always do an amazing job.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

No access to the Wi-Fi, noisy group of people made it difficult for me to hear through my earbuds. Snacks and drinks - limited service when your seat is at the back of the plane - people up front are always served first and the back gets whatever is left. Not pleased.

Didn't make it dir to delays - no support from United staff

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

I was forced to gate check my carry on luggage. Somehow it did not arrive at my destination. I still have yet to receive my bag r days after arrival.

Boarding area is a mess. Lines not bounded and gate area too small. Food options (on this specific flight) were poor and you couldn’t pick part of it since it was like a mash of chicken and other unrecognisable stuff. Comfort of seats along with child noise made it difficult to get a good sleep. Last, the flight attendant that served my aisle was rude (others seemed fine) towards me and others.

They cancelled our flight two times after rebooking us for a later flight. We never got on the plane. We found another solution by driving.

Mostly great. Only issue was with the WiFi. Halfway through the flight it was spotty and I was unable to work as I planned. This impacted my work products as I am traveling for business and it was an unexpected hindrance which was inconvenient. Flight here was amazing. For a 5 hour flight something more than a Biscoff would be nice but I’m just swinging at windmills I guess…

Delayed boarding because a flight attendant couldn't find the gate...sat on the plane for over an hour at the gate because AA couldn't get one of the planes behind us to move

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Overall a good experience, however Wifi was not working on the flight.

Got home at 3am after deboarding the plane. No compensation offered by American

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

I had two wonderful flights - very relaxing and got me there early!

Help was available but timing was bad in my case

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

Information on your arrival and departure airports