DCA - SAT

$125 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 8/17. 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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Everything you should know

Cheapest round-trip
$313
Typical prices: $269-$369
Frontier
Sat 7/4Wed 7/8
DCA - SAT • 1 stop
Cheapest non-stop
$333
Typical prices: $379-$249
American Airlines
Fri 7/3Sun 7/5
DCA - SAT • Non-stop
Top airlines
Cheapest • from $313 (round-trip)
Best reviews • 7.9 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 43m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $332 (round-trip)
Shortest trip • 5h 12m (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 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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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

Sat, Jul 4 - Wed, Jul 8
Frontier Logo
7:00 am - 6:56 pm
DCA
-
SAT
12h 56m
1 stop
Frontier Logo
7:39 pm - 4:59 pm
SAT
-
DCA
20h 20m
1 stop
$313Frontier
Fri, Aug 28 - Mon, Aug 31
Frontier Logo
2:00 pm - 6:56 pm
DCA
-
SAT
29h 56m
1 stop
Frontier Logo
7:51 pm - 9:59 pm
SAT
-
DCA
25h 08m
1 stop
$314Frontier
Tue, Nov 10 - Sat, Nov 14
Southwest Logo
12:05 pm - 4:15 pm
DCA
-
SAT
5h 10m
1 stop
Southwest Logo
12:40 pm - 9:35 pm
SAT
-
DCA
7h 55m
2 stops
$315Southwest
Thu, Jul 9 - Sun, Jul 12
Frontier Logo
7:00 am - 6:44 pm
DCA
-
SAT
12h 44m
1 stop
Frontier Logo
7:39 pm - 12:51 pm
SAT
-
DCA
16h 12m
1 stop
$316Frontier
Sat, Aug 1 - Fri, Aug 21
American Airlines Logo
5:00 am - 9:02 am
DCA
-
SAT
5h 02m
1 stop
American Airlines Logo
6:11 am - 10:40 am
SAT
-
DCA
3h 29mnonstop
$319American Airlines
Thu, Jul 9 - Wed, Jul 15
American Airlines Logo
5:00 am - 9:02 am
DCA
-
SAT
5h 02m
1 stop
American Airlines Logo
6:40 am - 11:02 am
SAT
-
DCA
3h 22mnonstop
$320American Airlines
Fri, Jul 31 - Fri, Aug 7
American Airlines Logo
5:00 am - 9:02 am
DCA
-
SAT
5h 02m
1 stop
American Airlines Logo
6:11 am - 10:40 am
SAT
-
DCA
3h 29mnonstop
$321American Airlines
Thu, Jul 16 - Mon, Jul 20
Southwest Logo
6:15 am - 10:25 am
DCA
-
SAT
5h 10m
1 stop
Southwest Logo
3:10 pm - 10:45 pm
SAT
-
DCA
6h 35m
1 stop
$324Southwest
Sat, Jul 11 - Thu, Jul 16
Frontier Logo
6:00 pm - 6:44 pm
DCA
-
SAT
25h 44m
1 stop
Frontier Logo
7:39 pm - 9:59 pm
SAT
-
DCA
25h 20m
1 stop
$325Frontier
Mon, Jun 29 - Mon, Jul 6
Frontier Logo
7:00 am - 6:56 pm
DCA
-
SAT
12h 56m
1 stop
Frontier Logo
7:39 pm - 4:59 pm
SAT
-
DCA
20h 20m
1 stop
$326Frontier
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 July.

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 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 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.

No, with an average price for the route of $421, 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 28% 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$125
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 6% 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 $125 for a one-way ticket and $313 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 $389 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $386 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 $275 or less one-way and $319 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 5 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.
7.9
SouthwestOverall score based on 4237 reviews
8.1Boarding
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
Airline reviews

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

4.0 OkayAnonymous, May 2026
MSY - HOU
Read more Southwest reviews

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

The seat was not comfortable. 1D. My back was sore all night and the next day.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

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

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

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.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

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

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

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.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

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

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

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

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.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Information on your arrival and departure airports