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 3h 10m. Southwest provides one of the quickest options available for as low as $277. San Antonio and Washington, D.C. are separated by a distance of 1405 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 $143, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include American Airlines and Delta. You may be able to fly from San Antonio to Washington, D.C. for 63% 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 $80 on Southwest. Other airlines that offer cheap prices include Frontier from $96 and Delta from $134 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. Reagan-National, San Antonio - Washington, D.C. Dulles Intl 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 $2,006, our data shows the cheapest flight currently is $193. When looking at the most popular route, (San Antonio - Washington, D.C. Reagan-National), you can expect to pay $240 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: Air Canada (90%), Lufthansa (90%), Brussels Airlines( 86%).

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 Southwest. 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 8 daily outbound flights to Washington, D.C. from 5 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.

$89+ Cheap Flights from San Antonio to Washington, D.C.

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in February or August, booked 77 days in advance, depart on a Thursday or Friday and return on a Thursday

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

Cheapest

Best

Last-minute

One-way

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 September 26, 2026.

Wed 10/215:00 am -

1 stop5h 05m

Wed 10/285:00 am -

1 stop7h 01m

Deal found 9/23

$237

Tue 11/35:00 am -

1 stop5h 01m

Sat 11/74:41 pm -

1 stop6h 16m

Deal found 9/22

$257

Mon 10/1910:03 am -

1 stop21h 17m

Thu 10/299:52 pm -

1 stop12h 26m

Deal found 9/24

$259

Wed 10/215:15 am -

Nonstop3h 15m

Mon 10/268:25 pm -

Nonstop3h 40m

Deal found 9/24

$277

Wed 10/2110:03 am -

1 stop7h 17m

Wed 10/287:05 pm -

2 stops25h 20m

Deal found 9/23

$279

Thu 10/156:00 pm -

1 stop4h 59m

Wed 10/215:48 pm -

1 stop6h 08m

Deal found 9/22

$281

Thu 10/156:00 pm -

1 stop4h 59m

Sat 10/177:14 pm -

1 stop5h 45m

Deal found 9/23

$282

Wed 10/283:40 pm -

Nonstop3h 15m

Mon 11/26:05 pm -

1 stop5h 05m

Deal found 9/25

$283

Wed 10/211:00 pm -

1 stop5h 00m

Tue 10/278:20 am -

Nonstop3h 35m

Deal found 9/24

$287

Wed 12/21:32 pm -

1 stop9h 53m

Mon 12/76:27 am -

1 stop7h 20m

Deal found 9/21

$288

Mon 12/1412:27 pm -

1 stop11h 02m

Mon 12/212:00 pm -

1 stop7h 12m

Deal found 9/24

$289

Tue 11/105:50 am -

2 stops8h 15m

Tue 11/172:10 pm -

2 stops7h 30m

Deal found 9/22

$299

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 September 26, 2026.

Wed 11/45:30 am -

Nonstop3h 05m

Mon 11/98:00 pm -

Nonstop3h 55m

Deal found 9/25

$277

Sat 11/1411:00 am -

1 stop5h 24m

Mon 11/166:29 pm -

1 stop7h 04m

Deal found 9/26

$287

Thu 12/2411:50 am -

1 stop5h 46m

Wed 12/306:00 am -

1 stop5h 51m

Deal found 9/24

$307

Wed 10/215:15 am -

Nonstop3h 15m

Mon 10/268:25 pm -

Nonstop3h 40m

Deal found 9/24

$277

Thu 10/156:20 pm -

1 stop5h 31m

Tue 10/207:50 pm -

1 stop5h 43m

Deal found 9/22

$297

Mon 11/212:24 pm -

Nonstop3h 11m

Sun 11/88:20 am -

Nonstop3h 53m

Deal found 9/24

$314

Sat 12/124:00 pm -

1 stop5h 10m

Tue 12/158:15 am -

Nonstop4h 00m

Deal found 9/24

$287

Thu 10/296:50 am -

1 stop5h 16m

Mon 11/26:32 pm -

1 stop5h 54m

Deal found 9/22

$311

Mon 11/25:15 am -

Nonstop3h 10m

Wed 11/49:55 am -

1 stop7h 25m

Deal found 9/25

$287

Fri 1/87:30 am -

Nonstop3h 10m

Tue 1/125:37 pm -

1 stop6h 22m

Deal found 9/21

$324

Sat 12/127:00 am -

Nonstop3h 13m

Tue 12/158:20 am -

Nonstop3h 54m

Deal found 9/24

$328

Wed 12/96:45 am -

2 stops7h 20m

Sat 12/127:05 am -

2 stops12h 00m

Deal found 9/23

$299

Fri 1/82:00 pm -

1 stop8h 33m

Mon 1/117:50 pm -

1 stop5h 38m

Deal found 9/21

$334

Tue 11/312:00 pm -

1 stop5h 10m

Sat 11/72:30 pm -

2 stops6h 55m

Deal found 9/22

$302

Wed 12/305:58 pm -

1 stop5h 43m

Sun 1/36:00 am -

1 stop5h 51m

Deal found 9/21

$334

Fri 1/85:20 am -

1 stop5h 33m

Mon 1/117:30 pm -

1 stop5h 58m

Deal found 9/21

$334

Mon 3/14:25 pm -

1 stop4h 50m

Wed 3/3110:00 am -

1 stop8h 18m

Deal found 9/23

$334

Tue 11/35:30 am -

Nonstop3h 05m

Fri 11/68:00 pm -

Nonstop3h 55m

Deal found 9/24

$327

Mon 10/197:00 am -

Nonstop3h 20m

Wed 10/218:30 am -

Nonstop3h 34m

Deal found 9/25

$379

Thu 12/245:30 am -

Nonstop3h 05m

Tue 12/297:15 am -

1 stop5h 20m

Deal found 9/22

$328

Wed 11/45:15 am -

1 stop5h 19m

Mon 11/95:00 pm -

1 stop6h 06m

Deal found 9/25

$379

Thu 10/157:00 am -

Nonstop3h 20m

Mon 10/265:30 pm -

Nonstop3h 54m

Deal found 9/25

$388

Fri 1/85:45 am -

Nonstop3h 05m

Mon 1/113:05 pm -

1 stop7h 10m

Deal found 9/21

$337

Mon 10/196:00 am -

1 stop7h 24m

Wed 10/213:30 pm -

1 stop8h 20m

Deal found 9/25

$399

Tue 12/225:20 am -

1 stop5h 15m

Sat 1/25:34 pm -

1 stop6h 04m

Deal found 9/25

$399

Tue 10/207:20 am -

2 stops6h 10m

Tue 10/279:10 am -

2 stops9h 15m

Deal found 9/22

$344

Mon 11/27:20 am -

2 stops6h 40m

Wed 11/41:35 pm -

2 stops9h 35m

Deal found 9/25

$344

Sat 12/265:58 pm -

1 stop5h 43m

Fri 1/18:20 am -

Nonstop4h 02m

Deal found 9/22

$448

Thu 10/2211:40 am -

1 stop9h 15m

Tue 10/279:10 am -

2 stops9h 15m

Deal found 9/24

$345

Thu 10/154:40 pm -

1 stop5h 25m

Sat 10/176:55 am -

2 stops7h 45m

Deal found 9/23

$414

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 September 26, 2026 and is based on user searches.

Thu 10/156:00 pm -

1 stop4h 59m

Wed 10/215:48 pm -

1 stop6h 08m

Deal found 9/22

$281

Thu 10/156:00 pm -

1 stop4h 59m

Sat 10/177:14 pm -

1 stop5h 45m

Deal found 9/23

$282

Thu 10/155:45 pm -

1 stop6h 35m

Sat 10/176:45 am -

1 stop6h 20m

Deal found 9/23

$297

Thu 10/158:21 pm -

1 stop14h 43m

Fri 10/301:00 pm -

1 stop7h 14m

Deal found 9/25

$304

Mon 10/1910:03 am -

1 stop21h 17m

Thu 10/299:52 pm -

1 stop12h 26m

Deal found 9/24

$259

Wed 10/215:00 am -

1 stop5h 05m

Wed 10/285:00 am -

1 stop7h 01m

Deal found 9/23

$237

Wed 10/215:15 am -

Nonstop3h 15m

Mon 10/268:25 pm -

Nonstop3h 40m

Deal found 9/24

$277

Wed 10/2110:03 am -

1 stop7h 17m

Wed 10/287:05 pm -

2 stops25h 20m

Deal found 9/23

$279

Wed 10/211:00 pm -

1 stop5h 00m

Tue 10/278:20 am -

Nonstop3h 35m

Deal found 9/24

$287

Sat 10/247:00 am -

Nonstop3h 20m

Sat 10/318:20 am -

1 stop10h 35m

Deal found 9/23

$293

Wed 10/283:40 pm -

Nonstop3h 15m

Mon 11/26:05 pm -

1 stop5h 05m

Deal found 9/25

$283

Sat 10/316:30 am -

2 stops7h 00m

Thu 11/58:00 pm -

Nonstop3h 55m

Deal found 9/21

$292

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 September 26, 2026.

Wed 10/2110:03 am -

1 stop7h 17m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$89

Mon 12/1412:27 pm -

1 stop11h 02m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$95

Mon 12/1412:27 pm -

1 stop8h 02m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$115

Mon 10/1910:34 pm -

1 stop30h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$117

Wed 10/1410:03 am -

1 stop7h 17m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/21

$117

Thu 10/228:21 pm -

1 stop14h 43m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$117

Sat 10/316:05 am -

1 stop5h 27m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$119

Mon 10/198:21 pm -

1 stop19h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$119

Thu 10/1510:34 pm -

1 stop30h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$120

Mon 11/1610:13 am -

1 stop26h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$120

Wed 11/48:20 pm -

1 stop14h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$120

Wed 10/2110:03 am -

1 stop23h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/22

$121

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$237 (American Airlines)
One-way from	$89 (Expedia)
Popular in	September
Cheapest in	February
Average price	$493
Good round-trip deal	$356 or less
Good one-way deal	$149 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

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

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

Cheapest round-trip

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Tue 11/3

7:00 am-11:13 am

Nonstop3h 13m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Wed 11/4

7:00 am-11:13 am

Nonstop3h 13m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Wed 10/14

7:00 am-11:20 am

Nonstop3h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Mon 10/19

7:00 am-11:20 am

Nonstop3h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Thu 10/22

12:10 pm-4:30 pm

Nonstop3h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioWashington, D.C.

SAT San Antonio - IAD Washington, D.C. Dulles Intl

SATIAD

San Antonio

Tue 12/1

7:00 am-11:13 am

Nonstop3h 13m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$135

San AntonioBaltimore

SAT San Antonio - BWI Baltimore/Washington

SATBWI

San Antonio

Wed 10/21

5:15 am-9:30 am

Nonstop3h 15m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$139

San AntonioBaltimore

SAT San Antonio - BWI Baltimore/Washington

SATBWI

San Antonio

Tue 10/20

5:15 am-9:30 am

Nonstop3h 15m

Baltimore/Washington

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$139

San AntonioWashington, D.C.

SAT San Antonio - DCA Washington, D.C. Reagan-National

SATDCA

San Antonio

Wed 11/18

5:30 am-11:29 am

1 stop4h 59m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$145

San AntonioWashington, D.C.

SAT San Antonio - DCA Washington, D.C. Reagan-National

SATDCA

San Antonio

Thu 10/22

4:45 pm-10:55 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 60 resultsSorted by cheapest first

...

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 September.

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

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

SAT-WAS

SAT-BWI

SAT-DCA

SAT-IAD

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.

SAT-WAS

SAT-BWI

SAT-DCA

SAT-IAD

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

Currently, February is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $337). Flying from San Antonio to Washington, D.C. in March is currently the most expensive (average of $461). 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 evening, when flights are generally more expensive, you can save up to 30% on flights from San Antonio to Washington, D.C. by exploring options for tickets at noon.

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 Saturday, which is when the least amount of flights are scheduled (3 on average).

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 $288 and $389 in October.
The cheapest round-trip price found within the last 5 days was $237 on American Airlines (Oct 21-Oct 28).

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.?

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $184.

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.

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

Booking 83 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.

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

Our travel experts

Ramsey Qubein

Expert on SAT and IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Southwest

8.0

Very good

4,201 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Delta

7.8

Good

8,608 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

United Airlines

7.4

Good

10,248 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

American Airlines

7.0

Good

12,098 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Frontier

5.6

Fair

2,572 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

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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 8 daily outbound flights to Washington, D.C. from 5 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 3h 10m. Southwest provides one of the quickest options available for as low as $277. San Antonio and Washington, D.C. are separated by a distance of 1405 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 $143, was found to be the cheapest airline from San Antonio to Washington, D.C..Alternate airlines to your destination round-trip include American Airlines and Delta. You may be able to fly from San Antonio to Washington, D.C. for 63% 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 $80 on Southwest. Other airlines that offer cheap prices include Frontier from $96 and Delta from $134 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. Reagan-National, San Antonio - Washington, D.C. Dulles Intl 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: Air Canada (90%), Lufthansa (90%), Brussels Airlines( 86%).
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 $2,006, our data shows the cheapest flight currently is $193. When looking at the most popular route, (San Antonio - Washington, D.C. Reagan-National), you can expect to pay $240 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, February is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $337). Flying from San Antonio to Washington, D.C. in March is currently the most expensive (average of $461). 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 5 airlines flying from San Antonio to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$72	Average$222	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$178	Average$405	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$185	Average$429	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$249	Average$409	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$268	Average$450	FlexibilityNo cancel fee	On-time63%

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$89+ Cheap flights from San Antonio (SAT) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 26, 2026.

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 September 26, 2026.

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 September 26, 2026.

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 September 26, 2026.

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 September 26, 2026 and is based on user searches.

Discover last-minute flight deals from San Antonio to Washington, D.C.. Data last updated September 26, 2026 and is based on user searches.

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 September 26, 2026.

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 September 26, 2026.

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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 September.

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.

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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 September 26, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 30% on flights from San Antonio to Washington, D.C. by exploring options for tickets at noon.

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 Saturday, which is when the least amount of flights are scheduled (3 on average).

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 $288 and $389 in October.The cheapest round-trip price found within the last 5 days was $237 on American Airlines (Oct 21-Oct 28).

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.

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.?

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.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $184.

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.

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.?

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.

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

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

Booking 83 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.

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

Our travel experts

Reviews of airlines servicing Washington, D.C.

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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

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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Complete your trip

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 September 26, 2026.

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 September 26, 2026.

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 September 26, 2026 and is based on user searches.

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 September 26, 2026.

San Antonio to Washington, D.C. flights typically cost between $288 and $389 in October.
The cheapest round-trip price found within the last 5 days was $237 on American Airlines (Oct 21-Oct 28).