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Cheap flights from San Antonio to Washington, D.C. from $68

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 2/23. 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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Find the cheapest flights from San Antonio to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:09 am - 9:03 pm
SAT
-
BWI
10h 54m1 stop
Multiple Airlines Logo
4:47 pm - 9:40 am
BWI
-
SAT
17h 53m1 stop
$163Multiple Airlines
Thu, Jan 15 - Sun, Jan 18
Multiple Airlines Logo
8:00 pm - 10:36 pm
SAT
-
BWI
25h 36m1 stop
Multiple Airlines Logo
1:05 pm - 11:52 pm
BWI
-
SAT
11h 47m1 stop
$171Multiple Airlines
Mon, Jan 12 - Mon, Jan 26
Multiple Airlines Logo
7:14 pm - 10:21 am
SAT
-
BWI
14h 07m1 stop
Multiple Airlines Logo
5:37 pm - 9:40 am
BWI
-
SAT
17h 03m1 stop
$172Multiple Airlines
Thu, Jan 8 - Thu, Jan 22
United Airlines Logo
11:43 am - 6:44 pm
SAT
-
DCA
6h 01m1 stop
United Airlines Logo
6:00 am - 10:47 am
DCA
-
SAT
5h 47m1 stop
$264United Airlines
Tue, Feb 24 - Sat, Feb 28
Delta Logo
5:30 am - 11:49 am
SAT
-
IAD
5h 19m1 stop
Delta Logo
10:06 am - 5:27 pm
IAD
-
SAT
8h 21m1 stop
$269Delta
Sat, Feb 7 - Thu, Feb 12
Delta Logo
6:30 am - 12:40 pm
SAT
-
DCA
5h 10m1 stop
Delta Logo
7:30 pm - 12:38 am
DCA
-
SAT
6h 08m1 stop
$269Delta
Sat, Feb 7 - Wed, Feb 11
Southwest Logo
12:40 pm - 8:00 pm
SAT
-
DCA
6h 20m1 stop
Southwest Logo
3:45 pm - 12:30 am
DCA
-
SAT
9h 45m1 stop
$274Southwest
Sat, Mar 7 - Sat, Mar 14
American Airlines Logo
6:41 am - 10:43 am
SAT
-
DCA
3h 02mnonstop
American Airlines Logo
8:40 am - 3:45 pm
DCA
-
SAT
8h 05m1 stop
$275American Airlines
Sat, Jan 10 - Tue, Jan 13
United Airlines Logo
12:15 pm - 4:24 pm
SAT
-
IAD
3h 09mnonstop
United Airlines Logo
5:50 pm - 8:56 pm
IAD
-
SAT
4h 06mnonstop
$275United Airlines
Wed, Jan 14 - Wed, Jan 21
American Airlines Logo
6:41 am - 10:43 am
SAT
-
DCA
3h 02mnonstop
American Airlines Logo
10:47 am - 3:45 pm
DCA
-
SAT
5h 58m1 stop
$276American Airlines
Thu, Jan 8 - Wed, Jan 14

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

Our best Delta deals on San Antonio to Washington, D.C. flight tickets
Delta
Feb 7
SAT5:30 amSan Antonio
5h 19m
1 stop
IAD11:49 amWashington, D.C. Dulles Intl
Feb 12
IAD10:06 amWashington, D.C. Dulles Intl
8h 21m
1 stop
SAT5:27 pmSan Antonio
$269
Find similar
Delta
Feb 10
SAT5:30 amSan Antonio
5h 22m
1 stop
IAD11:52 amWashington, D.C. Dulles Intl
Feb 10
IAD5:26 pmWashington, D.C. Dulles Intl
6h 29m
1 stop
SAT10:55 pmSan Antonio
$293
Find similar
Delta
Apr 24
SAT4:00 pmSan Antonio
5h 51m
1 stop
DCA10:51 pmWashington, D.C. Reagan-National
Apr 27
DCA7:30 pmWashington, D.C. Reagan-National
5h 44m
1 stop
SAT12:14 amSan Antonio
$294
Find similar

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
Feb 24
SAT11:43 amSan Antonio
6h 01m
1 stop
DCA6:44 pmWashington, D.C. Reagan-National
Feb 28
DCA6:00 amWashington, D.C. Reagan-National
5h 47m
1 stop
SAT10:47 amSan Antonio
$264
Find similar
United Airlines
Jan 14
SAT12:15 pmSan Antonio
3h 09m
IAD4:24 pmWashington, D.C. Dulles Intl
Jan 21
IAD5:50 pmWashington, D.C. Dulles Intl
4h 06m
SAT8:56 pmSan Antonio
$275
Find similar
United Airlines
Jan 5
SAT7:05 amSan Antonio
3h 09m
IAD11:14 amWashington, D.C. Dulles Intl
Jan 19
IAD5:50 pmWashington, D.C. Dulles Intl
4h 06m
SAT8:56 pmSan Antonio
$279
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 December 18, 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

Thu 1/15

9:09 am-9:03 pm

1 stop10h 54m

Baltimore/Washington

Sun 1/18

4:47 pm-9:40 am

1 stop17h 53m

$163

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Mon 1/12

8:00 pm-10:36 pm

1 stop25h 36m

Baltimore/Washington

Mon 1/26

1:05 pm-11:52 pm

1 stop11h 47m

$171

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Thu 1/8

7:14 pm-10:21 am

1 stop14h 07m

Baltimore/Washington

Thu 1/22

5:37 pm-9:40 am

1 stop17h 03m

$172

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 2/24

11:43 am-6:44 pm

1 stop6h 01m

Washington, D.C. Reagan-National

Sat 2/28

6:00 am-10:47 am

1 stop5h 47m

$264

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Sat 2/7

5:30 am-11:49 am

1 stop5h 19m

Washington, D.C. Dulles Intl

Thu 2/12

10:06 am-5:27 pm

1 stop8h 21m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 2/7

6:30 am-12:40 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Wed 2/11

7:30 pm-12:38 am

1 stop6h 08m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 3/7

12:40 pm-8:00 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Sat 3/14

3:45 pm-12:30 am

1 stop9h 45m

$274

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 1/10

6:41 am-10:43 am

Nonstop3h 02m

Washington, D.C. Reagan-National

Tue 1/13

8:40 am-3:45 pm

1 stop8h 05m

$275

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Wed 1/14

12:15 pm-4:24 pm

Nonstop3h 09m

Washington, D.C. Dulles Intl

Wed 1/21

5:50 pm-8:56 pm

Nonstop4h 06m

$275

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 1/8

6:41 am-10:43 am

Nonstop3h 02m

Washington, D.C. Reagan-National

Wed 1/14

10:47 am-3:45 pm

1 stop5h 58m

$276

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 $259. 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 $394. 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 $604.

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 Washington, D.C. Reagan-National 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 $364 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?

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

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

As of December 2025, prices for San Antonio to Washington, D.C. flights are approximately 4% cheaper 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

$148

Fastest flight time

3h 02m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from San Antonio in the past 72 hours is $148. The best round-trip flight deal from San Antonio to Washington, D.C. found on momondo in the last 72 hours is $368.
The fastest flight from San Antonio to Washington, D.C. takes 3h 02m
Direct flights go from San Antonio to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From San Antonio there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • 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 02m.

  • 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 $72Free CancellationRating
5.8
3,080 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $107Free CancellationRating
6.3
8,188 reviews
Search Spirit Airlines flights
DeltaPriceFrom $153Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $185Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
SouthwestPriceFrom $194Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
United AirlinesPriceFrom $226Free CancellationRating
7.4
9,094 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 3 flights on this route every week with an average price of $375. Southwest is rated 7.9/10 by our users.

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

    Across 9,091 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from San Antonio to Washington, D.C. about 19 times each week, with ticket deals ranging from $226 to $385. 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
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

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