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Cheap flights from San Antonio to Washington, D.C. from $80

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 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Spirit Airlines Logo
3:23 pm - 10:45 pmSAT-BWI
6h 22m1 stop
Spirit Airlines Logo
6:20 am - 6:32 pmBWI-SAT
13h 12m1 stop
$157Spirit Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
Spirit Airlines Logo
10:58 am - 10:45 pmSAT-BWI
10h 47m1 stop
Spirit Airlines Logo
6:20 am - 6:32 pmBWI-SAT
13h 12m1 stop
$172Spirit Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 12
United Airlines Logo
7:30 am - 11:43 amSAT-IAD
3h 13mnonstop
United Airlines Logo
5:15 pm - 7:36 pmIAD-SAT
3h 21mnonstop
$249United Airlines
Find Deal
Thu, Mar 26 - Wed, Apr 1
American Airlines Logo
6:50 am - 10:59 amSAT-DCA
3h 09mnonstop
American Airlines Logo
7:59 pm - 11:05 pmDCA-SAT
4h 06mnonstop
$249American Airlines
Find Deal
Sat, Nov 8 - Mon, Nov 10
United Airlines Logo
6:00 pm - 11:44 pmSAT-IAD
4h 44m1 stop
United Airlines Logo
8:15 am - 11:06 amIAD-SAT
3h 51mnonstop
$254United Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Southwest Logo
12:45 pm - 6:20 pmSAT-DCA
4h 35m1 stop
Southwest Logo
2:40 pm - 6:55 pmDCA-SAT
5h 15m1 stop
$254Southwest
Find Deal
Tue, Nov 18 - Wed, Nov 19
Delta Logo
12:45 pm - 11:58 pmSAT-IAD
10h 13m1 stop
Delta Logo
7:21 pm - 12:38 amIAD-SAT
6h 17m1 stop
$259Delta
Find Deal
Fri, Nov 14 - Mon, Nov 17
Delta Logo
2:40 pm - 12:21 amSAT-BWI
8h 41m1 stop
Delta Logo
7:15 am - 5:10 pmBWI-SAT
10h 55m1 stop
$259Delta
Find Deal
Thu, Dec 11 - Sun, Dec 14
Southwest Logo
11:55 am - 8:30 pmSAT-DCA
7h 35m2 stops
Southwest Logo
2:40 pm - 6:55 pmDCA-SAT
5h 15m1 stop
$260Southwest
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Tue, Nov 18 - Wed, Nov 19
American Airlines Logo
8:45 am - 6:44 pmSAT-DCA
8h 59m1 stop
American Airlines Logo
6:30 am - 12:04 pmDCA-SAT
6h 34m1 stop
$273American Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4

United Airlines flights from San Antonio to Washington, D.C.

Our best United Airlines deals on San Antonio to Washington, D.C. flight tickets
United Airlines
Mar 26
SAT7:30 amSan Antonio
3h 13m
IAD11:43 amWashington, D.C. Dulles Intl
Apr 1
IAD5:15 pmWashington, D.C. Dulles Intl
3h 21m
SAT7:36 pmSan Antonio
$249
Find similar
United Airlines
Nov 13
SAT6:00 pmSan Antonio
4h 44m
1 stop
IAD11:44 pmWashington, D.C. Dulles Intl
Nov 16
IAD8:15 amWashington, D.C. Dulles Intl
3h 51m
SAT11:06 amSan Antonio
$254
Find similar
United Airlines
Nov 10
SAT6:00 pmSan Antonio
4h 44m
1 stop
IAD11:44 pmWashington, D.C. Dulles Intl
Nov 11
IAD8:45 amWashington, D.C. Dulles Intl
7h 33m
1 stop
SAT3:18 pmSan Antonio
$264
Find similar

Delta flights from San Antonio to Washington, D.C.

Our best Delta deals on San Antonio to Washington, D.C. flight tickets
Delta
Nov 14
SAT12:45 pmSan Antonio
10h 13m
1 stop
IAD11:58 pmWashington, D.C. Dulles Intl
Nov 17
IAD7:21 pmWashington, D.C. Dulles Intl
6h 17m
1 stop
SAT12:38 amSan Antonio
$259
Find similar
Delta
Nov 14
SAT2:46 pmSan Antonio
6h 55m
1 stop
DCA10:41 pmWashington, D.C. Reagan-National
Nov 17
DCA12:39 pmWashington, D.C. Reagan-National
5h 38m
1 stop
SAT5:17 pmSan Antonio
$264
Find similar
Delta
Nov 6
SAT10:54 amSan Antonio
5h 03m
1 stop
IAD4:57 pmWashington, D.C. Dulles Intl
Nov 11
IAD5:03 pmWashington, D.C. Dulles Intl
6h 54m
1 stop
SAT10:57 pmSan Antonio
$269
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Washington, D.C. 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 October 16, 2025.
Use the filters below to find and compare flights from San Antonio to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Fri 11/7

3:23 pm-10:45 pm

1 stop6h 22m

Baltimore/Washington

Wed 11/12

6:20 am-6:32 pm

1 stop13h 12m

$157

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Sat 11/8

10:58 am-10:45 pm

1 stop10h 47m

Baltimore/Washington

Wed 11/12

6:20 am-6:32 pm

1 stop13h 12m

$172

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Thu 3/26

7:30 am-11:43 am

Nonstop3h 13m

Washington, D.C. Dulles Intl

Wed 4/1

5:15 pm-7:36 pm

Nonstop3h 21m

$249

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 11/8

6:50 am-10:59 am

Nonstop3h 09m

Washington, D.C. Reagan-National

Mon 11/10

7:59 pm-11:05 pm

Nonstop4h 06m

$249

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Thu 11/13

6:00 pm-11:44 pm

1 stop4h 44m

Washington, D.C. Dulles Intl

Sun 11/16

8:15 am-11:06 am

Nonstop3h 51m

$254

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 11/18

12:45 pm-6:20 pm

1 stop4h 35m

Washington, D.C. Reagan-National

Wed 11/19

2:40 pm-6:55 pm

1 stop5h 15m

$254

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Fri 11/14

12:45 pm-11:58 pm

1 stop10h 13m

Washington, D.C. Dulles Intl

Mon 11/17

7:21 pm-12:38 am

1 stop6h 17m

$259

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Thu 12/11

2:40 pm-12:21 am

1 stop8h 41m

Baltimore/Washington

Sun 12/14

7:15 am-5:10 pm

1 stop10h 55m

$259

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 11/18

11:55 am-8:30 pm

2 stops7h 35m

Washington, D.C. Reagan-National

Wed 11/19

2:40 pm-6:55 pm

1 stop5h 15m

$260

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 10/31

8:45 am-6:44 pm

1 stop8h 59m

Washington, D.C. Reagan-National

Tue 11/4

6:30 am-12:04 pm

1 stop6h 34m

$273

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.

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 Washington, D.C.?

The month of June is, on average, the cheapest month to fly to Washington, D.C. from San Antonio, with most prices found around $264. If you’re not able to fly to Washington, D.C. in June, then September is your next best option. Flight prices from San Antonio to Washington, D.C. during September average around $269.

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

On average, the least expensive day to fly to Washington, D.C. from San Antonio is on a Thursday. momondo users have found tickets for Thursday departures for as low as $406. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Antonio to Washington, D.C. for around $629.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from San Antonio to Washington, D.C. when you can find flight prices for as low as $308. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $987. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from San Antonio for as low as $250 on momondo.

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

There are 4 cabin classes available to choose from on San Antonio to Washington, D.C. 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. flights?

You could potentially save up to 7% on your flight if you consider stops on a San Antonio to Washington, D.C. flight.

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

As of October 2025, prices for San Antonio to Washington, D.C. flights are approximately 129% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Washington, D.C. 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. (SAT to WAS) flight deals and tips

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

Best Price Found

$159

Fastest flight time

3h 05m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from San Antonio in the past 72 hours is $159. The best round-trip flight deal from San Antonio to Washington, D.C. found on momondo in the last 72 hours is $283.
The fastest flight from San Antonio to Washington, D.C. takes 3h 05m
Direct flights go from San Antonio to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
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  • How far is San Antonio to Washington, D.C. by plane?

    The distance between San Antonio and Washington, D.C. is about 1384.8 mi. A reasonable flight in good conditions will take 3h 09m.

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

    Prices for flights from San Antonio Airport to Washington, D.C. are refreshed on a daily basis.

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

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

    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 San Antonio Airport to Washington, D.C..

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

    The required travel and health documents for your Washington, D.C. 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.. 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.?

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

Best airlines flying from San Antonio to Washington, D.C.

Compare and see reviews for airlines that fly from San Antonio to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $78Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $107Free CancellationRating
6.3
8,098 reviews
Search Spirit Airlines flights
DeltaPriceFrom $189Free CancellationRating
7.9
7,984 reviews
Search Delta flights
SouthwestPriceFrom $194Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $205Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights

  • Southwest Flights From San Antonio to Washington, D.C.

    The lowest priced Southwest flight from San Antonio to Washington, D.C. from the last 72 hours was $194. Generally, Southwest has 10 flights on this route every week with an average price of $412. Southwest is rated 8.0/10 by our users.

  • United Airlines Flights From San Antonio to Washington, D.C.

    Across 8,982 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from San Antonio to Washington, D.C. about 11 times each week, with ticket deals ranging from $238 to $391. Price data is based on momondo searches in the last 72 hours.

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
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie
Springfield
Linthicum Heights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from San Antonio to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from San Antonio.

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

Yes momondo offers price alerts on flights to Washington, D.C. from San Antonio. 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 Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport