How long is the flight from San Antonio to Washington, D.C.?

A quick flight from San Antonio to Washington, D.C. can take about 4h 57m. Spirit Airlines provides one of the quickest options available for as low as $269. San Antonio and Washington, D.C. are separated by a distance of 1378 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?

Frontier, at $75, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include Delta and Southwest. You may be able to fly from San Antonio to Washington, D.C. for 76% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from San Antonio to Washington, D.C. one-way?

One-way options have recently been found by users for as low as $94 on American Airlines. Other airlines that offer cheap prices include United Airlines from $105 and Southwest from $113 one-way.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from San Antonio to Washington, D.C.?

When deciding which route to take from San Antonio to Washington, D.C. consider San Antonio - Washington, D.C. Dulles Intl, San Antonio - Washington, D.C. Reagan-National or San Antonio - Baltimore/Washington as they are the most popular.

What are the cheapest flights from San Antonio to Washington, D.C.?

While on average a flight from San Antonio to Washington, D.C. is generally $1,033, our data shows the cheapest flight currently is $114. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $194 for that flight.

What are the most reliable airlines from San Antonio to Washington, D.C.?

Before booking your flight to Washington, D.C. from San Antonio, check out the most reliable airlines to get you to your destination on time: United Airlines (96%), Brussels Airlines (95%), Air Canada( 94%).

What are the most popular airlines that fly from San Antonio to Washington, D.C.?

The most popular airlines flying from San Antonio to Washington, D.C. are United Airlines, American Airlines and Delta. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on San Antonio-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from San Antonio to Washington, D.C.?

Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to Washington, D.C. from San Antonio. Booking flights from San Antonio (SAT) to Washington, D.C. should be relatively easy as there are 6 daily outbound flights to Washington, D.C. from 6 different airlines.

Can I find deals for flights from San Antonio to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on San Antonio to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Antonio to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Washington, D.C..

Can I find deals for business class flights from San Antonio to Washington, D.C.?

Yes. Cheapflights offers flight deals from San Antonio to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$62+ Flights from San Antonio to Washington, D.C.

Q: How much does it cost to fly round-trip from San Antonio to Washington, D.C.?

Airfare is below average for this route at the moment. San Antonio to Washington, D.C. flights typically cost between $342 and $499 in January. The cheapest round-trip price found within the last 3 days was $163 on Multiple Airlines (Jan 15-Jan 25).

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in June or September, booked 60 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from San Antonio to Washington, D.C.

Cheapest flights from San Antonio to Washington, D.C.
Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Wed 12/246:45 amSAT - DCA

1 stop29h 16mFrontier

Wed 12/318:00 amDCA - SAT

1 stop17h 17mFrontier

Deal found 12/14

$282

Tue 12/306:45 amSAT - DCA

1 stop29h 16mFrontier

Sun 1/48:00 amDCA - SAT

1 stop17h 17mFrontier

Deal found 12/14

$288

Wed 12/247:11 pmSAT - IAD

2 stops15h 27mFrontier

Sun 1/49:58 pmIAD - SAT

1 stop21h 18mFrontier

Deal found 12/15

$307

Wed 12/244:45 pmSAT - IAD

1 stop5h 07mDelta

Sat 1/36:00 amIAD - SAT

1 stop7h 30mDelta

Deal found 12/15

$313

Thu 12/254:45 pmSAT - DCA

1 stop5h 11mDelta

Sat 1/37:20 amDCA - SAT

1 stop6h 10mDelta

Deal found 12/15

$313

Tue 12/305:15 amSAT - IAD

1 stop5h 13mUnited Airlines

Sun 1/46:30 amIAD - SAT

1 stop6h 44mUnited Airlines

Deal found 12/14

$314

Fri 12/196:45 amSAT - DCA

1 stop9h 14mFrontier

Tue 1/62:00 pmDCA - SAT

1 stop26h 00mFrontier

Deal found 12/14

$321

Tue 12/305:00 amSAT - DCA

1 stop4h 54mAmerican Airlines

Sun 1/45:00 amDCA - SAT

1 stop5h 18mAmerican Airlines

Deal found 12/15

$329

Mon 12/227:05 amSAT - IAD

Nonstop3h 09mUnited Airlines

Fri 1/28:22 amIAD - SAT

Nonstop4h 01mUnited Airlines

Deal found 12/12

$334

Mon 12/297:11 pmSAT - BWI

1 stop11h 11mFrontier

Fri 1/25:30 amBWI - SAT

1 stop12h 31mFrontier

Deal found 12/14

$338

Fri 12/196:45 amSAT - DCA

1 stop9h 14mFrontier

Thu 1/12:00 pmDCA - SAT

1 stop11h 17mFrontier

Deal found 12/13

$338

Wed 12/247:05 amSAT - IAD

Nonstop3h 09mUnited Airlines

Sat 1/36:30 amIAD - SAT

1 stop6h 44mUnited Airlines

Deal found 12/15

$339

Best flights from San Antonio to Washington, D.C.
Discover carefully curated flight deals from San Antonio to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Wed 1/146:30 amSAT - BWI

1 stop16h 17mSpirit Airlines

Sat 1/249:26 amBWI - SAT

2 stops15h 26mSpirit Airlines

Deal found 12/14

$205

Sun 1/188:59 amSAT - BWI

1 stop11h 04mMultiple Airlines

Fri 1/301:00 pmBWI - SAT

1 stop21h 40mMultiple Airlines

Deal found 12/15

$237

Sat 3/74:00 pmSAT - IAD

1 stop6h 09mDelta

Sat 3/146:00 amIAD - SAT

1 stop6h 25mDelta

Deal found 12/14

$269

Fri 1/237:00 amSAT - IAD

1 stop8h 00mUnited Airlines

Mon 1/266:03 amIAD - SAT

1 stop5h 44mUnited Airlines

Deal found 12/13

$269

Sat 3/219:55 amSAT - DCA

1 stop6h 55mSouthwest

Sat 4/46:05 amDCA - SAT

1 stop8h 55mSouthwest

Deal found 12/13

$269

Mon 12/225:56 pmSAT - BWI

1 stop5h 44mFrontier

Fri 1/25:30 amBWI - SAT

1 stop12h 31mFrontier

Deal found 12/12

$367

Sat 2/145:00 amSAT - BWI

2 stops10h 20mAmerican Airlines

Tue 2/171:00 pmBWI - SAT

1 stop8h 01mAmerican Airlines

Deal found 12/13

$404

Sat 3/74:00 pmSAT - IAD

1 stop6h 09mDelta

Wed 3/115:20 pmIAD - SAT

1 stop5h 59mDelta

Deal found 12/14

$269

Wed 4/84:17 pmSAT - DCA

1 stop4h 57mUnited Airlines

Wed 4/1511:30 amDCA - SAT

1 stop6h 08mUnited Airlines

Deal found 12/15

$269

Sun 2/86:30 amSAT - BWI

3 stops26h 57mSpirit Airlines

Wed 2/111:00 pmBWI - SAT

2 stops11h 52mSpirit Airlines

Deal found 12/13

$283

Thu 1/221:03 pmSAT - IAD

1 stop9h 45mDelta

Mon 1/263:42 pmIAD - SAT

1 stop5h 43mDelta

Deal found 12/13

$269

Wed 3/117:00 amSAT - DCA

1 stop7h 32mUnited Airlines

Sun 3/156:00 amDCA - SAT

1 stop8h 14mUnited Airlines

Deal found 12/13

$269

Mon 3/96:11 pmSAT - IAD

1 stop5h 15mDelta

Sat 3/146:00 amIAD - SAT

1 stop6h 25mDelta

Deal found 12/14

$269

Thu 1/85:30 amSAT - IAD

1 stop5h 19mDelta

Mon 1/263:42 pmIAD - SAT

1 stop7h 46mDelta

Deal found 12/14

$269

Mon 12/297:11 pmSAT - BWI

1 stop11h 11mFrontier

Sun 1/410:00 pmBWI - SAT

1 stop21h 16mFrontier

Deal found 12/14

$368

Tue 1/135:45 amSAT - BWI

Nonstop3h 10mSouthwest

Tue 1/206:20 pmBWI - SAT

1 stop5h 45mSouthwest

Deal found 12/14

$392

Tue 1/201:40 pmSAT - IAD

1 stop6h 05mDelta

Sun 1/253:42 pmIAD - SAT

1 stop7h 46mDelta

Deal found 12/14

$269

Tue 1/135:25 amSAT - BWI

1 stop4h 55mUnited Airlines

Tue 1/208:07 amBWI - SAT

1 stop6h 12mUnited Airlines

Deal found 12/14

$339

Sat 3/74:00 pmSAT - IAD

1 stop6h 09mDelta

Thu 3/126:00 amIAD - SAT

1 stop6h 25mDelta

Deal found 12/14

$269

Thu 1/155:30 amSAT - IAD

1 stop5h 19mDelta

Mon 1/197:30 pmIAD - SAT

1 stop6h 08mDelta

Deal found 12/12

$269

Wed 3/111:37 pmSAT - DCA

1 stop7h 04mDelta

Sat 3/146:00 amDCA - SAT

1 stop6h 25mDelta

Deal found 12/13

$269

Thu 1/155:30 amSAT - DCA

1 stop5h 30mDelta

Mon 1/197:59 amDCA - SAT

1 stop8h 22mDelta

Deal found 12/13

$269

Fri 4/104:25 pmSAT - DCA

1 stop5h 26mDelta

Sat 4/186:10 amDCA - SAT

1 stop6h 55mDelta

Deal found 12/15

$269

Tue 4/72:36 pmSAT - DCA

1 stop8h 10mDelta

Tue 4/149:00 amDCA - SAT

1 stop7h 21mDelta

Deal found 12/15

$269

Tue 4/74:25 pmSAT - DCA

1 stop5h 26mDelta

Sat 4/186:10 amDCA - SAT

1 stop6h 55mDelta

Deal found 12/15

$269

Sat 3/211:37 pmSAT - DCA

1 stop6h 03mDelta

Sat 4/412:09 pmDCA - SAT

1 stop7h 03mDelta

Deal found 12/13

$269

Tue 3/1010:46 amSAT - DCA

1 stop5h 14mDelta

Sat 3/146:00 amDCA - SAT

1 stop6h 25mDelta

Deal found 12/14

$269

Tue 2/175:25 amSAT - DCA

1 stop5h 37mDelta

Sat 2/211:40 pmDCA - SAT

1 stop7h 45mDelta

Deal found 12/13

$269

Tue 2/178:00 amSAT - BWI

1 stop6h 39mDelta

Thu 2/194:45 pmBWI - SAT

1 stop6h 43mDelta

Deal found 12/13

$397

Tue 2/174:00 pmSAT - BWI

1 stop5h 53mDelta

Sat 2/215:25 pmBWI - SAT

1 stop6h 30mDelta

Deal found 12/13

$397

Last-minute flights from San Antonio to Washington, D.C.
Discover last-minute flight deals from San Antonio to Washington, D.C.. Data last updated December 15, 2025 and is based on user searches.

Tue 1/612:45 pmSAT - BWI

1 stop10h 04mSpirit Airlines

Thu 1/84:44 pmBWI - SAT

1 stop8h 08mSpirit Airlines

Deal found 12/13

$206

Thu 1/87:14 pmSAT - BWI

1 stop14h 07mMultiple Airlines

Sat 1/104:44 pmBWI - SAT

1 stop8h 08mMultiple Airlines

Deal found 12/14

$166

Fri 1/910:35 amSAT - BWI

1 stop12h 01mSpirit Airlines

Tue 1/1311:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Deal found 12/12

$196

Sun 1/117:14 pmSAT - BWI

2 stops28h 15mMultiple Airlines

Sun 1/184:47 pmBWI - SAT

1 stop17h 53mMultiple Airlines

Deal found 12/14

$185

Mon 1/128:00 pmSAT - BWI

1 stop25h 36mFrontier

Mon 1/1910:31 amBWI - SAT

1 stop7h 52mFrontier

Deal found 12/14

$181

Mon 1/128:00 pmSAT - BWI

1 stop25h 36mMultiple Airlines

Mon 1/191:00 pmBWI - SAT

2 stops35h 52mMultiple Airlines

Deal found 12/14

$194

Tue 1/136:30 amSAT - BWI

1 stop15h 06mMultiple Airlines

Tue 1/2011:30 amBWI - SAT

1 stop13h 22mMultiple Airlines

Deal found 12/14

$179

Tue 1/136:30 amSAT - BWI

2 stops35h 33mSpirit Airlines

Tue 1/2011:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Deal found 12/14

$205

Wed 1/146:30 amSAT - BWI

1 stop16h 17mSpirit Airlines

Sat 1/244:44 pmBWI - SAT

1 stop8h 08mSpirit Airlines

Deal found 12/14

$171

Thu 1/159:09 amSAT - BWI

1 stop10h 54mMultiple Airlines

Sun 1/255:47 pmBWI - SAT

1 stop16h 53mMultiple Airlines

Deal found 12/14

$163

Sat 1/1710:35 amSAT - BWI

1 stop12h 01mSpirit Airlines

Sun 1/2511:30 amBWI - SAT

1 stop13h 22mSpirit Airlines

Deal found 12/14

$180

Thu 1/228:24 pmSAT - DCA

1 stop15h 38mFrontier

Mon 1/268:00 amDCA - SAT

1 stop12h 33mFrontier

Deal found 12/14

$266

One-way flights from San Antonio to Washington, D.C.
Search for one-way flight options from San Antonio to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Tue 1/66:45 amSAT - DCA

1 stop14h 14mFrontier

Deal found 12/14

$62

Fri 1/236:13 pmSAT - BWI

1 stop5h 23mFrontier

Deal found 12/13

$64

Mon 2/96:13 pmSAT - BWI

1 stop5h 23mFrontier

Deal found 12/14

$65

Mon 2/231:57 pmSAT - BWI

1 stop28h 02mFrontier

Deal found 12/14

$68

Tue 2/105:12 pmSAT - DCA

1 stop17h 52mFrontier

Deal found 12/12

$68

Thu 1/87:14 pmSAT - IAD

1 stop11h 41mFrontier

Deal found 12/15

$73

Mon 2/98:24 pmSAT - DCA

1 stop24h 35mFrontier

Deal found 12/14

$75

Wed 2/116:30 amSAT - BWI

1 stop10h 36mSpirit Airlines

Deal found 12/14

$78

Wed 1/712:45 pmSAT - BWI

1 stop10h 04mSpirit Airlines

Deal found 12/15

$79

Thu 1/87:14 pmSAT - BWI

1 stop14h 07mFrontier

Deal found 12/15

$80

Wed 2/115:12 pmSAT - DCA

1 stop22h 48mFrontier

Deal found 12/15

$80

Thu 1/2210:35 amSAT - BWI

1 stop12h 24mMultiple Airlines

Deal found 12/13

$83

Find flight deals from San Antonio to Washington, D.C.

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$163 (Kiwi.com)
One-way from	$62 (Trip.com)
Popular in	December
Cheapest in	June
Average price	$437
Good round-trip deal	$368 or less
Good one-way deal	$148 or less

Provider with most accurate pricing for San Antonio-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-Washington, D.C. (WAS) flights.

Search Deals

From San Antonio to Washington, D.C. (WAS)

Search Deals

One-way flight from San Antonio to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from San Antonio to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from San Antonio to Washington, D.C. (WAS).

Search Deals

Cheapflights Fare Finder

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

Wed 1/14

6:30 am-11:47 pm

1 stop16h 17m

Baltimore/Washington

Sat 1/24

9:26 am-11:52 pm

2 stops15h 26m

$205

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Sun 1/18

8:59 am-9:03 pm

1 stop11h 04m

Baltimore/Washington

Fri 1/30

1:00 pm-9:40 am

1 stop21h 40m

$237

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Sat 3/7

4:00 pm-11:09 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Sat 3/14

6:00 am-11:25 am

1 stop6h 25m

$269

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Fri 1/23

7:00 am-4:00 pm

1 stop8h 00m

Washington, D.C. Dulles Intl

Mon 1/26

6:03 am-10:47 am

1 stop5h 44m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 3/21

9:55 am-5:50 pm

1 stop6h 55m

Washington, D.C. Reagan-National

Sat 4/4

6:05 am-2:00 pm

1 stop8h 55m

$269

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Sat 3/7

4:00 pm-11:09 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Wed 3/11

5:20 pm-10:19 pm

1 stop5h 59m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 4/8

4:17 pm-10:14 pm

1 stop4h 57m

Washington, D.C. Reagan-National

Wed 4/15

11:30 am-4:38 pm

1 stop6h 08m

$269

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Thu 1/22

1:03 pm-11:48 pm

1 stop9h 45m

Washington, D.C. Dulles Intl

Mon 1/26

3:42 pm-8:25 pm

1 stop5h 43m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 3/11

7:00 am-3:32 pm

1 stop7h 32m

Washington, D.C. Reagan-National

Sun 3/15

6:00 am-1:14 pm

1 stop8h 14m

$269

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Mon 3/9

6:11 pm-12:26 am

1 stop5h 15m

Washington, D.C. Dulles Intl

Sat 3/14

6:00 am-11:25 am

1 stop6h 25m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 55 results

...

Compare providers for flights from San Antonio to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Washington, D.C. in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Antonio-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from San Antonio with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Washington, D.C.

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

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

Currently, November is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $72). Flying from San Antonio to Washington, D.C. in December is currently the most expensive (average of $176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to WAS?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 43% on flights from San Antonio to Washington, D.C. by exploring options for tickets in the evening.

What is the cheapest day to fly from San Antonio to Washington, D.C.?

Travelers seeking maximum savings on their San Antonio to Washington, D.C. flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Antonio to Washington, D.C.

The most flights from SAT to WAS are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from San Antonio to Washington, D.C.?

What’s the top layover airport for flights from San Antonio to Washington, D.C.?

Chicago (MDW) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Antonio to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from San Antonio to Washington, D.C.?

Houston (IAH) is the most affordable 1-stop option, with an average round-trip price of $268.

What’s the fastest layover option from San Antonio to Washington, D.C.?

Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 4h 57m.

Which airport typically offers the quickest layover for flights from San Antonio to Washington, D.C.?

Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 0h 53m.

The best insider tips for San Antonio to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Washington, D.C. trip

Airports

SAT

For a quick departure, SAT offers a central ticketing area leading to Terminals A and B. Enjoy local dining like Smoke Shack's brisket before your flight.

IAD

Use the Silver Line Metro for a cost-effective trip to D.C. from IAD. It's a 40-minute ride with a station five minutes from the terminal.

Our travel experts

Ramsey Qubein

Expert on SAT and IAD

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,007 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,092 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,052 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Spirit Airlines

6.3

Okay

8,185 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

What airport do you fly from for flights from San Antonio to Washington, D.C.?
Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to Washington, D.C. from San Antonio. Booking flights from San Antonio (SAT) to Washington, D.C. should be relatively easy as there are 6 daily outbound flights to Washington, D.C. from 6 different airlines.
How long is the flight from San Antonio to Washington, D.C.?
A quick flight from San Antonio to Washington, D.C. can take about 4h 57m. Spirit Airlines provides one of the quickest options available for as low as $269. San Antonio and Washington, D.C. are separated by a distance of 1378 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?
Frontier, at $75, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include Delta and Southwest. You may be able to fly from San Antonio to Washington, D.C. for 76% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from San Antonio to Washington, D.C. one-way?
One-way options have recently been found by users for as low as $94 on American Airlines. Other airlines that offer cheap prices include United Airlines from $105 and Southwest from $113 one-way.
What are the most popular routes from San Antonio to Washington, D.C.?
When deciding which route to take from San Antonio to Washington, D.C. consider San Antonio - Washington, D.C. Dulles Intl, San Antonio - Washington, D.C. Reagan-National or San Antonio - Baltimore/Washington as they are the most popular.
What are the most reliable airlines from San Antonio to Washington, D.C.?
Before booking your flight to Washington, D.C. from San Antonio, check out the most reliable airlines to get you to your destination on time: United Airlines (96%), Brussels Airlines (95%), Air Canada( 94%).
What are the cheapest flights from San Antonio to Washington, D.C.?
While on average a flight from San Antonio to Washington, D.C. is generally $1,033, our data shows the cheapest flight currently is $114. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $194 for that flight.
Can I find deals for flights from San Antonio to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on San Antonio to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Washington, D.C..
Can I find deals for business class flights from San Antonio to Washington, D.C.?
Yes. Cheapflights offers flight deals from San Antonio to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Antonio to Washington, D.C.?
Currently, November is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $72). Flying from San Antonio to Washington, D.C. in December is currently the most expensive (average of $176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 6 airlines flying from San Antonio to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$72	Average$189	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$107	Average$220	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$153	Average$350	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$194	Average$380	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$208	Average$380	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$226	Average$386	FlexibilityNo cancel fee	On-time69%

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$62+ Cheap flights from San Antonio (SAT) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in June or September, booked 60 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from San Antonio to Washington, D.C.

Cheapest flights from San Antonio to Washington, D.C.Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

Find flight deals from San Antonio to Washington, D.C.

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

Compare providers for flights from San Antonio to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Washington, D.C. in December.

Best time to book a flight from San Antonio to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Washington, D.C.. Price data was last updated on December 12, 2025.

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

What is the cheapest time of day to fly from SAT to WAS?

Find hourly flight availability from San Antonio to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

What is the cheapest day to fly from San Antonio to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Washington, D.C.. Price data was last updated on December 6, 2025.

Weekly flight availability from San Antonio to Washington, D.C.

How much does it cost to fly round-trip from San Antonio to Washington, D.C.?

What’s the top layover airport for flights from San Antonio to Washington, D.C.?

Share of 1-stop round-trip flights from San Antonio to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from San Antonio to Washington, D.C.?

Average round-trip fare for 1-stop flights from San Antonio to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from San Antonio to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from San Antonio to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from San Antonio to Washington, D.C.?

Average layover duration for 1-stop one-way flights from San Antonio to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

The best insider tips for San Antonio to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Washington, D.C. trip

Airports

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IAD

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Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Antonio to Washington, D.C.?

How long is the flight from San Antonio to Washington, D.C.?

What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?

What are the cheapest airlines to fly from San Antonio to Washington, D.C. one-way?

What are the most popular routes from San Antonio to Washington, D.C.?

What are the most reliable airlines from San Antonio to Washington, D.C.?

What are the cheapest flights from San Antonio to Washington, D.C.?

Can I find deals for flights from San Antonio to Washington, D.C. that include hotel bookings?

How can I find direct flights from San Antonio to Washington, D.C.?

Can I find deals for business class flights from San Antonio to Washington, D.C.?

What is the cheapest month to book a flight from San Antonio to Washington, D.C.?

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

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Alternative routes for San Antonio to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Cheapest flights from San Antonio to Washington, D.C.
Explore the most affordable flight options available from San Antonio to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.