How long does it take to fly to San Antonio?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in San Antonio you fly into. For example, flying from Washington, D.C. to Austin takes 3h 17m on average. On the other hand, flying from Baltimore to Austin takes 3h 25m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

How many flights depart from Washington, D.C. to San Antonio on average per week?

As of May 2026, there are 81 flights per week flying from Washington, D.C. to San Antonio. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

Which layover airport has the shortest travel time from Washington, D.C. to San Antonio?

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 5h 57m.

Which layover airport offers the lowest fares from Washington, D.C. to San Antonio?

Flights via Denver (DEN) offer the lowest average round-trip price of $280.

Which layover airport has the shortest connection time from Washington, D.C. to San Antonio?

Dallas (DFW) has the shortest average layover time for this route: 0h 57m.

Which airport is the most popular layover for flights between Washington, D.C. and San Antonio?

Denver (DEN) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Washington, D.C. to San Antonio on average per day?

As of May 2026, 11 flights take off from Washington, D.C. and land in San Antonio each day. The most common flight departure time for this route is 5:00PM, with 52% of daily flights taking off in the afternoon.

What airlines fly to San Antonio?

United Airlines, Southwest and American Airlines are the top three most popular airlines that fly to San Antonio from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 8 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington, D.C. to San Antonio?

Southwest, United Airlines, and Delta are the most popular carriers operating from Washington, D.C. to San Antonio

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

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

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

The number of operators available for flights from Washington, D.C. to San Antonio Airport is 6 as of May 2026.

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

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

The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$134 Cheap Flights from Washington, D.C. to San Antonio in 2026

Q: What is the typical price of a round-trip flight between Washington, D.C. and San Antonio?

Prices are currently low for flights on this route. Typical prices usually range from $486 to $317. The lowest price recently found on this route was $304.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:52 pm - 9:39 am

BWI

SAT

12h 47m

1 stop

10:34 am - 8:57 pm

SAT

BWI

9h 23m

1 stop

$304Frontier

Sun, Oct 18 - Mon, Oct 26

9:30 pm - 3:37 pm

BWI

SAT

19h 07m

1 stop

9:51 am - 12:23 am

SAT

BWI

13h 32m

1 stop

$308Frontier

Thu, Jul 2 - Mon, Jul 6

8:25 am - 10:59 am

IAD

SAT

3h 34mnonstop

5:57 pm - 12:31 am

SAT

IAD

5h 34m

1 stop

$309United Airlines

Fri, Jul 3 - Wed, Jul 8

7:00 am - 11:26 am

DCA

SAT

5h 26m

1 stop

4:25 pm - 10:15 pm

SAT

DCA

4h 50m

1 stop

$309Delta

Tue, Oct 20 - Tue, Oct 27

9:38 pm - 3:41 pm

BWI

SAT

19h 03m

1 stop

9:51 am - 8:54 am

SAT

BWI

22h 03m

1 stop

$309Frontier

Fri, Jul 24 - Mon, Jul 27

6:05 am - 2:50 pm

DCA

SAT

9h 45m

2 stops

4:20 pm - 10:20 pm

SAT

DCA

5h 00m

1 stop

$310Southwest

Wed, Aug 19 - Wed, Aug 26

7:31 pm - 11:58 pm

IAD

SAT

5h 27m

1 stop

2:48 pm - 12:10 am

SAT

IAD

8h 22m

2 stops

$314American Airlines

Tue, Jul 28 - Tue, Aug 4

6:15 am - 10:25 am

DCA

SAT

5h 10m

1 stop

3:35 pm - 10:55 pm

SAT

DCA

6h 20m

1 stop

$314Southwest

Fri, Jul 3 - Wed, Jul 8

11:05 am - 3:51 pm

IAD

SAT

5h 46m

1 stop

5:20 am - 11:37 am

SAT

IAD

5h 17m

1 stop

$319Delta

Wed, Jul 22 - Fri, Jul 31

5:42 pm - 10:57 pm

IAD

SAT

6h 15m

1 stop

5:30 am - 11:28 am

SAT

IAD

4h 58m

1 stop

$326United Airlines

Wed, Jul 29 - Sun, Aug 2

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

Our best Delta deals on Washington, D.C. to San Antonio flight tickets

Delta

Jul 22

IAD11:05 amWashington, D.C. Dulles Intl

5h 46m

1 stop

SAT3:51 pmSan Antonio

Jul 31

SAT5:20 amSan Antonio

5h 17m

1 stop

IAD11:37 amWashington, D.C. Dulles Intl

$319

Delta

Jun 19

IAD7:39 pmWashington, D.C. Dulles Intl

5h 54m

1 stop

SAT12:33 amSan Antonio

Jun 22

SAT4:00 pmSan Antonio

6h 14m

1 stop

IAD11:14 pmWashington, D.C. Dulles Intl

$329

Delta

Jun 16

DCA6:25 pmWashington, D.C. Reagan-National

7h 08m

1 stop

SAT12:33 amSan Antonio

Jun 22

SAT4:00 pmSan Antonio

5h 59m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

$344

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

Our best Frontier deals on Washington, D.C. to San Antonio flight tickets

Frontier

Oct 18

BWI9:52 pmBaltimore/Washington

12h 47m

1 stop

SAT9:39 amSan Antonio

Oct 26

SAT10:34 amSan Antonio

9h 23m

1 stop

BWI8:57 pmBaltimore/Washington

$304

Frontier

Jul 2

BWI9:30 pmBaltimore/Washington

19h 07m

1 stop

SAT3:37 pmSan Antonio

Jul 6

SAT9:51 amSan Antonio

13h 32m

1 stop

BWI12:23 amBaltimore/Washington

$308

Frontier

Jul 24

BWI9:38 pmBaltimore/Washington

19h 03m

1 stop

SAT3:41 pmSan Antonio

Jul 27

SAT9:51 amSan Antonio

22h 03m

1 stop

BWI8:54 amBaltimore/Washington

$309

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Sun 10/18

9:52 pm-9:39 am

1 stop12h 47m

San Antonio

Mon 10/26

10:34 am-8:57 pm

1 stop9h 23m

$304

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 7/2

9:30 pm-3:37 pm

1 stop19h 07m

San Antonio

Mon 7/6

9:51 am-12:23 am

1 stop13h 32m

$308

Quickest round-trip

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Fri 7/3

8:25 am-10:59 am

Nonstop3h 34m

San Antonio

Wed 7/8

5:57 pm-12:31 am

1 stop5h 34m

$309

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Tue 10/20

7:00 am-11:26 am

1 stop5h 26m

San Antonio

Tue 10/27

4:25 pm-10:15 pm

1 stop4h 50m

$309

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 7/24

9:38 pm-3:41 pm

1 stop19h 03m

San Antonio

Mon 7/27

9:51 am-8:54 am

1 stop22h 03m

$309

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 8/19

6:05 am-2:50 pm

2 stops9h 45m

San Antonio

Wed 8/26

4:20 pm-10:20 pm

1 stop5h 00m

$310

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Tue 7/28

7:31 pm-11:58 pm

1 stop5h 27m

San Antonio

Tue 8/4

2:48 pm-12:10 am

2 stops8h 22m

$314

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Fri 7/3

6:15 am-10:25 am

1 stop5h 10m

San Antonio

Wed 7/8

3:35 pm-10:55 pm

1 stop6h 20m

$314

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Wed 7/22

11:05 am-3:51 pm

1 stop5h 46m

San Antonio

Fri 7/31

5:20 am-11:37 am

1 stop5h 17m

$319

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Wed 7/29

5:42 pm-10:57 pm

1 stop6h 15m

San Antonio

Sun 8/2

5:30 am-11:28 am

1 stop4h 58m

$326

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Washington, D.C. and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of June, then book flights to San Antonio from Washington, D.C. during July instead. Flights to San Antonio in July, while not as cheap as those in June, still average around $119.

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 Thursday when prices can be found for as low as $340. 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 $507.

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 at noon. momondo users have found flights departing from Washington, D.C. to San Antonio at noon for as low as $309. 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 morning, with an average ticket price of $399. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to San Antonio from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $391 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. for as low as $312 on momondo.

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

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

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

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

As of May 2026, prices for Washington, D.C. to San Antonio flights are approximately 28% cheaper when compared to flights at the same time last year.

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

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

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

Best Price Found	$188
Fastest flight time	3h 25m
Direct flights	Every day
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from Washington, D.C. in the past 72 hours is $188. The best round-trip flight deal from Washington, D.C. to San Antonio found on momondo in the last 72 hours is $319.

The fastest flight from Washington, D.C. to San Antonio takes 3h 25m

Direct flights go from Washington, D.C. to San Antonio every day.

There is 1 airport in San Antonio. From Washington, D.C. there are direct flights to San Antonio (SAT).

Search flight deals

Frequently asked questions about flying from Washington, D.C. to San Antonio

How far is Washington, D.C. to San Antonio by plane?
San Antonio is 1384.8 mi away from Washington, D.C.. A reasonable flight in good conditions will take 3h 25m.
When did momondo last update prices for flights from Washington, D.C. to San Antonio Airport?
Prices for flights from Washington, D.C. to San Antonio Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to San Antonio Airport?
The number of operators available for flights from Washington, D.C. to San Antonio Airport is 6 as of May 2026.
How old do you have to be to fly from Washington, D.C. to San Antonio 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 Washington, D.C. to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to San Antonio?
Based on momondo bookings for flights between Washington, D.C. and San Antonio, the leading plane model is Boeing 737 MAX 8, making up 21.25% of the total bookings. Other popular models include Boeing 737-700 with 21.10%, Airbus A319 with 15.90%, and Boeing 737 MAX 9 with 13.50%.
What is the most popular airline from Washington, D.C. to San Antonio?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to San Antonio is United Airlines (52% of total bookings). The next most popular airlines are American Airlines (25%), Southwest (14%), and Delta (7%).

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

Compare and see reviews for airlines that fly from Washington, D.C. to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $94	Free Cancellation	Rating 6.2	Search Spirit Airlines flights
Frontier	PriceFrom $144	Free Cancellation	Rating 5.6 2,932 reviews	Search Frontier flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.1 11,640 reviews	Search American Airlines flights
Southwest	PriceFrom $181	Free Cancellation	Rating 7.9 4,265 reviews	Search Southwest flights
Delta	PriceFrom $226	Free Cancellation	Rating 7.9 8,423 reviews	Search Delta flights
United Airlines	PriceFrom $249	Free Cancellation	Rating 7.4 9,753 reviews	Search United Airlines flights

Southwest Flights From Washington, D.C. to San Antonio
Southwest is one of the most popular airlines flying from Washington, D.C. to San Antonio, operating 16 flights/week on average for this route. A good Southwest flight deal for Washington, D.C. to San Antonio starts from $181 round-trip, up to an average price of $412. Our users have rated Southwest at 7.9/10.
United Airlines Flights From Washington, D.C. to San Antonio
The best United Airlines deal for Washington, D.C. to San Antonio flight tickets found on momondo in the last 72 hours was $249, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $400 round-trip. United Airlines operates 21 flights out of Washington, D.C. into San Antonio in an average week, so prices vary by time and availability. 9,753 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

New Braunfels

Kerrville

Pleasanton

Boerne

Schertz

Why use momondo?

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

Finding the right flight to San Antonio from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

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

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

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

Once all potential Washington, D.C. to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Washington, D.C. to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

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Cheap flights from Washington, D.C. to San Antonio from $134

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. to San Antonio departing on 6/16. 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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Delta flights from Washington, D.C. to San Antonio

Our best Delta deals on Washington, D.C. to San Antonio flight tickets

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Our best Frontier deals on Washington, D.C. to San Antonio flight tickets

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See travel insights to San Antonio from

How to get the cheapest flight ticket from Washington, D.C. to San Antonio

What is the typical price of a round-trip flight between Washington, D.C. and San Antonio?

What is the cheapest month to fly to San Antonio?

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

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

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

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

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

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

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

What is the cheapest airline that flies from Washington, D.C. to San Antonio?

What airlines fly to San Antonio?

Which airport is the most popular layover for flights between Washington, D.C. and San Antonio?

Which layover airport offers the lowest fares from Washington, D.C. to San Antonio?

Which layover airport has the shortest travel time from Washington, D.C. to San Antonio?

Which layover airport has the shortest connection time from Washington, D.C. to San Antonio?

How many flights depart from Washington, D.C. to San Antonio on average per day?

How many flights depart from Washington, D.C. to San Antonio on average per week?

How long does it take to fly to San Antonio?

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

Cheap Washington, D.C. to San Antonio (WAS to SAT) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Antonio

Frequently asked questions about flying from Washington, D.C. to San Antonio

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

Compare and see reviews for airlines that fly from Washington, D.C. to San Antonio with momondo

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

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

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List of cabin classes available on flights landing in San Antonio. Availability may vary depending on flight origin and airline.

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