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Cheap flights from San Antonio to Washington, D.C. from $150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Washington, D.C. departing on 10/30. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
12:55 pm - 9:50 pm
SAT
-
DCA
7h 55m
2 stops
Southwest Logo
6:50 am - 11:10 am
DCA
-
SAT
5h 20m
1 stop
$295Southwest
Sat, Sep 5 - Fri, Sep 11
American Airlines Logo
6:11 am - 10:40 am
SAT
-
DCA
3h 29mnonstop
American Airlines Logo
6:16 pm - 8:57 pm
DCA
-
SAT
3h 41mnonstop
$297American Airlines
Wed, Sep 2 - Tue, Sep 8
American Airlines Logo
6:14 am - 10:35 am
SAT
-
DCA
3h 21mnonstop
American Airlines Logo
5:17 pm - 8:10 pm
DCA
-
SAT
3h 53mnonstop
$297American Airlines
Thu, Oct 15 - Mon, Oct 19
Frontier Logo
11:08 am - 9:58 pm
SAT
-
DCA
9h 50m
1 stop
Frontier Logo
1:59 pm - 10:12 am
DCA
-
SAT
21h 13m
1 stop
$299Frontier
Wed, Nov 4 - Mon, Nov 9
Southwest Logo
9:45 am - 6:40 pm
SAT
-
DCA
7h 55m
2 stops
Southwest Logo
6:00 am - 11:45 am
DCA
-
SAT
6h 45m
2 stops
$299Southwest
Sat, Aug 29 - Sat, Sep 5
Frontier Logo
8:20 pm - 12:11 pm
SAT
-
DCA
14h 51m
1 stop
Frontier Logo
1:06 pm - 7:25 pm
DCA
-
SAT
7h 19m
1 stop
$301Frontier
Sun, Sep 13 - Thu, Sep 17
Delta Logo
5:15 am - 11:28 am
SAT
-
DCA
5h 13m
1 stop
Delta Logo
12:27 pm - 4:39 pm
DCA
-
SAT
5h 12m
1 stop
$303Delta
Thu, Aug 20 - Mon, Aug 31
Delta Logo
3:00 pm - 10:59 pm
SAT
-
DCA
6h 59m
1 stop
Delta Logo
6:00 am - 9:48 am
DCA
-
SAT
4h 48m
1 stop
$303Delta
Sat, Sep 5 - Mon, Sep 7
United Airlines Logo
5:30 am - 11:53 am
SAT
-
DCA
5h 23m
1 stop
United Airlines Logo
10:30 am - 4:30 pm
DCA
-
SAT
7h 00m
1 stop
$314United Airlines
Sun, Oct 18 - Sat, Oct 24
United Airlines Logo
4:12 pm - 10:13 pm
SAT
-
DCA
5h 01m
1 stop
United Airlines Logo
8:20 am - 3:43 pm
DCA
-
SAT
8h 23m
1 stop
$374United Airlines
Mon, Aug 24 - Wed, Aug 26

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

Our best Delta deals on San Antonio to Washington, D.C. Reagan-National Airport flight tickets
Delta
Aug 20
SAT5:15 amSan Antonio
5h 13m
1 stop
DCA11:28 amWashington, D.C. Reagan-National
Aug 31
DCA12:27 pmWashington, D.C. Reagan-National
5h 12m
1 stop
SAT4:39 pmSan Antonio
$303
Delta
Sep 18
SAT1:20 pmSan Antonio
8h 39m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
Sep 21
DCA7:40 pmWashington, D.C. Reagan-National
5h 28m
1 stop
SAT12:08 amSan Antonio
$314
Delta
Oct 10
SAT5:00 pmSan Antonio
5h 48m
1 stop
DCA11:48 pmWashington, D.C. Reagan-National
Oct 12
DCA7:40 pmWashington, D.C. Reagan-National
5h 53m
1 stop
SAT12:33 amSan Antonio
$324

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

Our best Southwest deals on San Antonio to Washington, D.C. Reagan-National Airport flight tickets
Southwest
Sep 5
SAT12:55 pmSan Antonio
7h 55m
2 stops
DCA9:50 pmWashington, D.C. Reagan-National
Sep 11
DCA6:50 amWashington, D.C. Reagan-National
5h 20m
1 stop
SAT11:10 amSan Antonio
$295
Southwest
Aug 26
SAT4:20 pmSan Antonio
6h 35m
2 stops
DCA11:55 pmWashington, D.C. Reagan-National
Sep 2
DCA6:05 amWashington, D.C. Reagan-National
9h 45m
2 stops
SAT2:50 pmSan Antonio
$299
Southwest
Aug 25
SAT4:20 pmSan Antonio
5h 00m
1 stop
DCA10:20 pmWashington, D.C. Reagan-National
Sep 25
DCA6:50 amWashington, D.C. Reagan-National
5h 20m
1 stop
SAT11:10 amSan Antonio
$305

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated August 1, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 9/5

12:55 pm-9:50 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Fri 9/11

6:50 am-11:10 am

1 stop5h 20m

$295
Quickest round-trip

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 9/2

6:11 am-10:40 am

Nonstop3h 29m

Washington, D.C. Reagan-National

Tue 9/8

6:16 pm-8:57 pm

Nonstop3h 41m

$297

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 10/15

6:14 am-10:35 am

Nonstop3h 21m

Washington, D.C. Reagan-National

Mon 10/19

5:17 pm-8:10 pm

Nonstop3h 53m

$297

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 11/4

11:08 am-9:58 pm

1 stop9h 50m

Washington, D.C. Reagan-National

Mon 11/9

1:59 pm-10:12 am

1 stop21h 13m

$299

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 8/29

9:45 am-6:40 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Sat 9/5

6:00 am-11:45 am

2 stops6h 45m

$299

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sun 9/13

8:20 pm-12:11 pm

1 stop14h 51m

Washington, D.C. Reagan-National

Thu 9/17

1:06 pm-7:25 pm

1 stop7h 19m

$301

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 8/20

5:15 am-11:28 am

1 stop5h 13m

Washington, D.C. Reagan-National

Mon 8/31

12:27 pm-4:39 pm

1 stop5h 12m

$303

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 9/5

3:00 pm-10:59 pm

1 stop6h 59m

Washington, D.C. Reagan-National

Mon 9/7

6:00 am-9:48 am

1 stop4h 48m

$303

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sun 10/18

5:30 am-11:53 am

1 stop5h 23m

Washington, D.C. Reagan-National

Sat 10/24

10:30 am-4:30 pm

1 stop7h 00m

$314

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Mon 8/24

4:12 pm-10:13 pm

1 stop5h 01m

Washington, D.C. Reagan-National

Wed 8/26

8:20 am-3:43 pm

1 stop8h 23m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 typical price of a round-trip flight between San Antonio and Washington, D.C. Reagan-National Airport?

Prices are currently typical for flights on this route.

Typical prices usually range from $294 to $391.
The lowest price recently found on this route was $295.

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

The month of August is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from San Antonio, with most prices found around $309. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $329.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from San Antonio to Washington, D.C. Reagan-National Airport is on a Thursday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as $353. Flights from San Antonio to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $467. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $377 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from San Antonio for as low as $244 on momondo.

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

There are 3 cabin classes available to choose from on San Antonio to Washington, D.C. Reagan-National Airport 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 San Antonio to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a San Antonio to Washington, D.C. Reagan-National Airport flight.

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

As of August 2026, prices for San Antonio to Washington, D.C. Reagan-National Airport flights are approximately 6% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$188

Fastest flight time

3h 12m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from San Antonio in the past 72 hours is $188. The best round-trip flight deal from San Antonio to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $319.
The fastest flight from San Antonio to Washington, D.C. Reagan-National Airport takes 3h 12m
Direct flights go from San Antonio to Washington, D.C. Reagan-National Airport every day.
Search flight deals

Frequently asked questions about flying from San Antonio to Washington, D.C. Reagan-National Airport

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

    San Antonio and Washington, D.C. Reagan-National are 1383.3 mi apart from one another. Typically, this will take 3h 12m by plane in normal conditions.

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

    Prices for flights from San Antonio Airport to Washington, D.C. Reagan-National Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from San Antonio to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $143Free CancellationRating
5.6
2,746 reviews
Search Frontier flights
SouthwestPriceFrom $226Free CancellationRating
8.0
4,226 reviews
Search Southwest flights
DeltaPriceFrom $236Free CancellationRating
7.8
8,494 reviews
Search Delta flights
American AirlinesPriceFrom $249Free CancellationRating
7.1
11,846 reviews
Search American Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
10,053 reviews
Search United Airlines flights

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

    Southwest flight deals from San Antonio to Washington, D.C. Reagan-National Airport start from $226 round-trip. Over the 2 Southwest flights for this route in a normal week, average airfare is usually $345 round-trip - but some users have found much cheaper deals with momondo.

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

    Another popular option for San Antonio to Washington, D.C. Reagan-National Airport flights is American Airlines (7.1/10, 11,845 ratings). American Airlines flies from San Antonio to Washington, D.C. Reagan-National Airport around 3 times per week, with deals starting from $249 round-trip and rising to an average price of around $397.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Colonial Beach
Springfield
Fairfax
Tysons
Bethesda
Edgewood
College Park

Why use momondo?

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

It is quick and easy to find San Antonio to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Yes. All flights to Washington, D.C. from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between San Antonio and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Washington, D.C. from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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