Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Reagan-National Airport to San Antonio from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to San Antonio departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Reagan-National Airport to San Antonio

Cheap round-trip flights

American Airlines Logo
7:59 pm - 10:36 pmDCA-SAT
3h 37mnonstop
American Airlines Logo
6:35 am - 10:55 amSAT-DCA
3h 20mnonstop
$189American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9
American Airlines Logo
7:45 pm - 10:16 pmDCA-SAT
3h 31mnonstop
American Airlines Logo
6:35 am - 10:55 amSAT-DCA
3h 20mnonstop
$190American Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
American Airlines Logo
7:45 pm - 10:16 pmDCA-SAT
3h 31mnonstop
American Airlines Logo
6:35 am - 10:55 amSAT-DCA
3h 20mnonstop
$191American Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
Southwest Logo
6:00 am - 12:15 pmDCA-SAT
7h 15m1 stop
Southwest Logo
10:10 am - 4:10 pmSAT-DCA
5h 00m1 stop
$204Southwest
Find Deal
Wed, Aug 27 - Sun, Aug 31
Southwest Logo
6:05 am - 10:25 amDCA-SAT
5h 20m1 stop
Southwest Logo
2:05 pm - 8:55 pmSAT-DCA
5h 50m1 stop
$209Southwest
Find Deal
Wed, Sep 3 - Sat, Sep 6
Southwest Logo
6:00 am - 12:15 pmDCA-SAT
7h 15m2 stops
Southwest Logo
10:10 am - 4:10 pmSAT-DCA
5h 00m1 stop
$210Southwest
Find Deal
Wed, Aug 27 - Sun, Aug 31
Delta Logo
6:00 am - 1:04 pmDCA-SAT
8h 04m1 stop
Delta Logo
1:37 pm - 8:41 pmSAT-DCA
6h 04m1 stop
$237Delta
Find Deal
Sat, Sep 13 - Mon, Sep 15
Delta Logo
6:00 am - 9:40 amDCA-SAT
4h 40m1 stop
Delta Logo
10:45 am - 6:35 pmSAT-DCA
6h 50m1 stop
$258Delta
Find Deal
Mon, Aug 4 - Thu, Aug 7
United Airlines Logo
11:00 am - 3:30 pmDCA-SAT
5h 30m1 stop
United Airlines Logo
2:15 pm - 10:08 pmSAT-DCA
6h 53m1 stop
$259United Airlines
Find Deal
Mon, Dec 15 - Sat, Dec 20
United Airlines Logo
8:20 am - 3:25 pmDCA-SAT
8h 05m1 stop
United Airlines Logo
4:24 pm - 10:09 pmSAT-DCA
4h 45m1 stop
$284United Airlines
Find Deal
Sat, Oct 25 - Thu, Oct 30

Frontier flights from Washington, D.C. Reagan-National Airport to San Antonio

Our best Frontier deals on Washington, D.C. Reagan-National Airport to San Antonio flight tickets
Frontier
Jul 22
DCA7:00 amWashington, D.C. Reagan-National
12h 02m
1 stop
SAT6:02 pmSan Antonio
Jul 27
SAT8:14 pmSan Antonio
14h 50m
1 stop
DCA12:04 pmWashington, D.C. Reagan-National
$315
Find similar
Frontier
Jul 21
DCA6:00 pmWashington, D.C. Reagan-National
25h 02m
1 stop
SAT6:02 pmSan Antonio
Jul 29
SAT6:59 pmSan Antonio
25h 58m
1 stop
DCA9:57 pmWashington, D.C. Reagan-National
$317
Find similar
Frontier
Jul 22
DCA7:00 amWashington, D.C. Reagan-National
12h 02m
1 stop
SAT6:02 pmSan Antonio
Jul 29
SAT6:59 pmSan Antonio
25h 58m
1 stop
DCA9:57 pmWashington, D.C. Reagan-National
$347
Find similar

Delta flights from Washington, D.C. Reagan-National Airport to San Antonio

Our best Delta deals on Washington, D.C. Reagan-National Airport to San Antonio flight tickets
Delta
Sep 13
DCA6:00 amWashington, D.C. Reagan-National
8h 04m
1 stop
SAT1:04 pmSan Antonio
Sep 15
SAT1:37 pmSan Antonio
6h 04m
1 stop
DCA8:41 pmWashington, D.C. Reagan-National
$237
Find similar
Delta
Aug 4
DCA6:00 amWashington, D.C. Reagan-National
4h 40m
1 stop
SAT9:40 amSan Antonio
Aug 7
SAT10:45 amSan Antonio
6h 50m
1 stop
DCA6:35 pmWashington, D.C. Reagan-National
$258
Find similar
Delta
Jul 31
DCA6:05 amWashington, D.C. Reagan-National
5h 25m
1 stop
SAT10:30 amSan Antonio
Aug 6
SAT6:35 amSan Antonio
6h 23m
1 stop
DCA1:58 pmWashington, D.C. Reagan-National
$278
Find similar

See travel insights to San Antonio from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Washington, D.C. Reagan-National Airport during February instead. Flights to San Antonio in February, while not as cheap as those in August, still average around $315.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $373. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $495.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to San Antonio in the evening for as low as $318. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $428. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Washington, D.C. Reagan-National to San Antonio for the best Washington, D.C. Reagan-National - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Washington, D.C. Reagan-National Airport for as low as $275 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National to San Antonio flights?

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Reagan-National Airport to San Antonio flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Reagan-National Airport to San Antonio.

How have Washington, D.C. Reagan-National Airport to San Antonio flight prices changed over time?

As of July 2025, prices for Washington, D.C. Reagan-National Airport to San Antonio flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to San Antonio (DCA to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to San Antonio

Best Price Found

$95

Fastest flight time

3h 31m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Washington, D.C. Reagan-National Airport in the past 72 hours is $95. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to San Antonio found on momondo in the last 72 hours is $189.
The fastest flight from Washington, D.C. Reagan-National Airport to San Antonio takes 3h 31m
Direct flights go from Washington, D.C. Reagan-National Airport to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)
Search flight deals

  • How far is Washington, D.C. Reagan-National to San Antonio by plane?

    Washington, D.C. Reagan-National and San Antonio are 1383.3 mi apart from one another. A reasonable flight in good conditions will take 3h 31m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to San Antonio Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to San Antonio Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to San Antonio Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Washington, D.C. Reagan-National Airport to San Antonio?

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to San Antonio?

Best airlines flying from Washington, D.C. Reagan-National Airport to San Antonio

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.9
3,256 reviews
Search Frontier flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
8,863 reviews
Search United Airlines flights
DeltaPriceFrom $248Free CancellationRating
8.0
7,959 reviews
Search Delta flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,239 reviews
Search Southwest flights

  • Southwest Flights From Washington, D.C. Reagan-National Airport to San Antonio

    The lowest priced Southwest flight from Washington, D.C. Reagan-National Airport to San Antonio from the last 72 hours was $258. Generally, Southwest has 16 flights on this route every week with an average price of $459. Southwest is rated 8.0/10 by our users.

  • American Airlines Flights From Washington, D.C. Reagan-National Airport to San Antonio

    Another popular option for Washington, D.C. Reagan-National Airport to San Antonio flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from Washington, D.C. Reagan-National Airport to San Antonio around 7 times per week, with deals starting from $232 round-trip and rising to an average price of around $366.

Traveling to a place near San Antonio?

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to San Antonio. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to San Antonio?

momondo provides multiple filters to help you find the best flight to San Antonio from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/21
Mon 7/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States