How popular is this San Antonio to Washington, D.C. flight route?

Within the past month, 9 users have taken a look at flights from San Antonio to Washington, D.C..

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

Spirit Airlines, at $98, 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 United Airlines. You may be able to fly from San Antonio to Washington, D.C. for 71% 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 $48 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $109 and United Airlines 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 - Baltimore/Washington or San Antonio - Washington, D.C. Reagan-National 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 $318, our data shows the cheapest flight currently is $118. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $214 for that flight.

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 American Airlines, Delta and Spirit Airlines. Something to consider prior to booking your flight.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 71%.

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

To save up to 99% on this flight, we recommend booking at least 52 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Antonio to Washington, D.C. from $325 1-2 weeks out and tickets from $477 for flights departing within the next 72 hours.

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

Our data shows that August tends to be the cheapest month to fly to Washington, D.C. from San Antonio. Users have commonly found prices around $339 for the month, but tickets can be as low as $179. Due to multiple factors, prepare for potentially higher prices in November.

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 7 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.

$48+ Flights from San Antonio to Washington, D.C.

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Antonio to Washington, D.C. are usually found in August or July, booked 51 days in advance, depart on a Thursday or Friday and return on a Wednesday

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$98 (Cheapflightsfares)
One-way from	$48 (FlightHub)
Popular in	November
Cheapest in	August
Average price	$331
Good round-trip deal	$249 or less
Good one-way deal	$143 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. 8% potential increase in price ($33 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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

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

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Find 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 April 11, 2025.

Fri 5/911:06 amSAT - BWI

Nonstop3h 20mSpirit Airlines

Fri 5/167:33 amBWI - SAT

Nonstop3h 38mSpirit Airlines

Deal found 4/9

$98

Wed 5/216:34 amSAT - DCA

Nonstop3h 21mAmerican Airlines

Wed 5/287:45 pmDCA - SAT

Nonstop3h 39mAmerican Airlines

Deal found 4/10

$205

Thu 5/297:15 amSAT - IAD

Nonstop3h 21mUnited Airlines

Mon 6/28:30 amIAD - SAT

Nonstop3h 30mUnited Airlines

Deal found 4/10

$214

Fri 6/205:50 amSAT - DCA

1 stop9h 05mSouthwest

Fri 7/411:45 amDCA - SAT

1 stop7h 05mSouthwest

Deal found 4/9

$239

Thu 5/86:25 pmSAT - BWI

1 stop21h 57mFrontier

Thu 5/159:16 pmBWI - SAT

1 stop23h 15mFrontier

Deal found 4/10

$250

Sat 5/36:25 pmSAT - IAD

1 stop5h 00mDelta

Tue 5/137:05 amIAD - SAT

1 stop5h 08mDelta

Deal found 4/11

$251

Tue 5/67:00 amSAT - DCA

1 stop6h 38mDelta

Tue 5/134:05 pmDCA - SAT

1 stop5h 21mDelta

Deal found 4/11

$251

Fri 4/257:59 pmSAT - IAD

1 stop19h 36mFrontier

Sun 4/275:25 pmIAD - SAT

1 stop26h 34mFrontier

Deal found 4/10

$271

Thu 6/126:45 amSAT - DCA

1 stop8h 03mUnited Airlines

Sun 6/157:25 amDCA - SAT

1 stop5h 58mUnited Airlines

Deal found 4/9

$281

Mon 5/58:00 amSAT - IAD

1 stop8h 55mSouthwest

Wed 5/77:50 amIAD - SAT

2 stops10h 55mSouthwest

Deal found 4/10

$294

Thu 4/105:39 amSAT - BWI

1 stop13h 48mMultiple Airlines

Sat 4/129:56 pmBWI - SAT

1 stop11h 17mMultiple Airlines

Deal found 4/9

$299

Thu 4/242:28 pmSAT - IAD

1 stop7h 14mAmerican Airlines

Sat 4/265:00 amIAD - SAT

2 stops9h 38mAmerican Airlines

Deal found 4/10

$314

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 April 11, 2025.

Fri 5/911:06 amSAT - BWI

Nonstop3h 20mSpirit Airlines

Fri 5/167:33 amBWI - SAT

Nonstop3h 38mSpirit Airlines

Deal found 4/9

$98

Wed 5/216:34 amSAT - DCA

Nonstop3h 21mAmerican Airlines

Wed 5/287:45 pmDCA - SAT

Nonstop3h 39mAmerican Airlines

Deal found 4/10

$205

Thu 5/297:15 amSAT - IAD

Nonstop3h 21mUnited Airlines

Mon 6/28:30 amIAD - SAT

Nonstop3h 30mUnited Airlines

Deal found 4/10

$214

Fri 6/205:50 amSAT - DCA

1 stop9h 05mSouthwest

Fri 7/411:45 amDCA - SAT

1 stop7h 05mSouthwest

Deal found 4/9

$239

Thu 5/86:25 pmSAT - BWI

1 stop21h 57mFrontier

Thu 5/159:16 pmBWI - SAT

1 stop23h 15mFrontier

Deal found 4/10

$250

Tue 6/175:25 amSAT - IAD

1 stop8h 11mDelta

Tue 6/245:24 pmIAD - SAT

1 stop5h 47mDelta

Deal found 4/10

$251

Tue 4/152:44 pmSAT - BWI

1 stop24h 44mMultiple Airlines

Tue 4/295:55 amBWI - SAT

1 stop15h 06mMultiple Airlines

Deal found 4/9

$290

Tue 5/67:00 amSAT - DCA

1 stop6h 38mDelta

Tue 5/134:05 pmDCA - SAT

1 stop5h 21mDelta

Deal found 4/11

$251

Thu 5/16:35 amSAT - IAD

2 stops22h 05mAlaska Airlines

Mon 5/125:00 pmIAD - SAT

2 stops26h 37mAlaska Airlines

Deal found 4/10

$533

Fri 4/257:59 pmSAT - IAD

1 stop19h 36mFrontier

Sun 4/275:25 pmIAD - SAT

1 stop26h 34mFrontier

Deal found 4/10

$271

Thu 6/126:45 amSAT - DCA

1 stop8h 03mUnited Airlines

Sun 6/157:25 amDCA - SAT

1 stop5h 58mUnited Airlines

Deal found 4/9

$281

Mon 5/58:00 amSAT - IAD

1 stop8h 55mSouthwest

Wed 5/77:50 amIAD - SAT

2 stops10h 55mSouthwest

Deal found 4/10

$294

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 April 11, 2025 and is based on user searches.

Thu 4/105:39 amSAT - BWI

1 stop13h 48mMultiple Airlines

Sat 4/129:56 pmBWI - SAT

1 stop11h 17mMultiple Airlines

Deal found 4/9

$299

Tue 4/152:44 pmSAT - BWI

1 stop24h 44mMultiple Airlines

Tue 4/295:55 amBWI - SAT

1 stop15h 06mMultiple Airlines

Deal found 4/9

$290

Tue 4/156:05 amSAT - IAD

1 stop7h 00mSouthwest

Tue 4/222:50 pmIAD - SAT

1 stop8h 35mSouthwest

Deal found 4/10

$459

Thu 4/177:00 amSAT - BWI

1 stop9h 53mSpirit Airlines

Sat 4/195:03 pmBWI - SAT

1 stop12h 31mSpirit Airlines

Deal found 4/10

$190

Thu 4/179:13 amSAT - BWI

1 stop10h 43mFrontier

Sat 4/199:56 pmBWI - SAT

1 stop11h 17mFrontier

Deal found 4/10

$320

Thu 4/175:30 amSAT - IAD

1 stop4h 53mDelta

Sat 4/196:00 amIAD - SAT

1 stop7h 34mDelta

Deal found 4/10

$328

Thu 4/171:35 pmSAT - DCA

1 stop5h 59mDelta

Sat 4/192:00 pmDCA - SAT

1 stop7h 28mDelta

Deal found 4/10

$328

Thu 4/179:13 amSAT - IAD

1 stop6h 49mFrontier

Sat 4/1912:48 pmIAD - SAT

1 stop20h 25mFrontier

Deal found 4/10

$330

Thu 4/175:30 amSAT - DCA

1 stop7h 16mUnited Airlines

Sat 4/1912:45 pmDCA - SAT

1 stop6h 01mUnited Airlines

Deal found 4/10

$339

Thu 4/174:45 pmSAT - IAD

Nonstop3h 29mUnited Airlines

Sat 4/195:50 pmIAD - SAT

Nonstop3h 44mUnited Airlines

Deal found 4/10

$359

Thu 4/176:35 amSAT - DCA

Nonstop3h 15mAmerican Airlines

Mon 4/217:45 pmDCA - SAT

Nonstop3h 40mAmerican Airlines

Deal found 4/10

$379

Thu 4/175:00 amSAT - IAD

2 stops7h 42mAmerican Airlines

Mon 4/215:13 pmIAD - SAT

1 stop7h 45mAmerican Airlines

Deal found 4/10

$404

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 April 11, 2025.

Fri 5/911:06 amSAT - BWI

Nonstop3h 20mSpirit Airlines

Deal found 4/9

$48

Wed 6/412:19 pmSAT - IAD

1 stop9h 13mFrontier

Deal found 4/10

$109

Sun 5/257:15 amSAT - IAD

Nonstop3h 21mUnited Airlines

Deal found 4/10

$113

Tue 5/66:34 amSAT - DCA

Nonstop3h 21mAmerican Airlines

Deal found 4/10

$116

Sat 5/106:33 amSAT - IAD

1 stop7h 04mDelta

Deal found 4/10

$126

Tue 5/65:30 amSAT - DCA

1 stop4h 55mDelta

Deal found 4/10

$126

Sun 8/36:55 amSAT - IAD

1 stop11h 15mSouthwest

Deal found 4/10

$140

Wed 6/112:37 pmSAT - IAD

2 stops19h 25mMultiple Airlines

Deal found 4/10

$151

Wed 4/306:35 amSAT - DCA

1 stop5h 20mSouthwest

Deal found 4/10

$155

Sun 4/208:36 pmSAT - BWI

1 stop13h 51mFrontier

Deal found 4/10

$156

Sat 5/106:00 amSAT - IAD

2 stops9h 56mAmerican Airlines

Deal found 4/10

$165

Tue 5/132:30 pmSAT - BWI

Nonstop3h 20mSouthwest

Deal found 4/9

$173

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

Fri 5/9

11:06 am-3:26 pm

Nonstop3h 20m

Baltimore/Washington

Fri 5/16

7:33 am-10:11 am

Nonstop3h 38m

$98

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Wed 5/21

6:34 am-10:55 am

Nonstop3h 21m

Washington, D.C. Reagan-National

Wed 5/28

7:45 pm-10:24 pm

Nonstop3h 39m

$205

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Thu 5/29

7:15 am-11:36 am

Nonstop3h 21m

Washington, D.C. Dulles Intl

Mon 6/2

8:30 am-11:00 am

Nonstop3h 30m

$214

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 6/20

5:50 am-3:55 pm

1 stop9h 05m

Washington, D.C. Reagan-National

Fri 7/4

11:45 am-5:50 pm

1 stop7h 05m

$239

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Thu 5/8

6:25 pm-5:22 pm

1 stop21h 57m

Baltimore/Washington

Thu 5/15

9:16 pm-7:31 pm

1 stop23h 15m

$250

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Sat 5/3

5:30 am-11:23 am

1 stop4h 53m

Washington, D.C. Dulles Intl

Tue 5/6

6:00 am-10:45 am

1 stop5h 45m

$251

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 5/6

7:00 am-2:38 pm

1 stop6h 38m

Washington, D.C. Reagan-National

Tue 5/13

4:05 pm-8:26 pm

1 stop5h 21m

$251

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Fri 4/25

7:59 pm-4:35 pm

1 stop19h 36m

Washington, D.C. Dulles Intl

Sun 4/27

5:25 pm-6:59 pm

1 stop26h 34m

$271

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 6/12

6:45 am-3:48 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Sun 6/15

7:25 am-12:23 pm

1 stop5h 58m

$281

San AntonioBaltimore

SAT - BWI

SATBWI

San Antonio

Tue 4/15

2:44 pm-4:28 pm

1 stop24h 44m

Baltimore/Washington

Tue 4/29

5:55 am-8:01 pm

1 stop15h 06m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 36 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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 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 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.

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 quick check-in, SAT's central ticketing area leads to two smaller concourses. Security is straightforward, making it ideal for business travelers.

IAD

Use the Silver Line Metro for a cost-effective 40-minute ride to downtown D.C. from IAD, with a short walk to the terminal.

Our travel experts

Ramsey Qubein

Expert on SAT and IAD

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 51 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, August is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $241). Flying from San Antonio to Washington, D.C. in March is currently the most expensive (average of $290). 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 82% 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 Thursday evenings when fares are most often at their lowest. Tuesday afternoons 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 Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Washington, D.C. by month

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.

Temperature in Washington, D.C. by month

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).

Reviews of airlines servicing Washington, D.C.

To help decide which airline to fly from San Antonio to Washington, D.C., see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,851 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,911 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Hawaiian Airlines

7.9

Good

2,365 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,636 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 7 daily outbound flights to Washington, D.C. from 6 different airlines.
How popular is this San Antonio to Washington, D.C. flight route?
Within the past month, 9 users have taken a look at flights from San Antonio to Washington, D.C..
What are the cheapest airlines flying from San Antonio to Washington, D.C. round-trip?
Spirit Airlines, at $98, 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 United Airlines. You may be able to fly from San Antonio to Washington, D.C. for 71% 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 $48 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $109 and United Airlines 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 - Baltimore/Washington or San Antonio - Washington, D.C. Reagan-National 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 $318, our data shows the cheapest flight currently is $118. When looking at the most popular route, (San Antonio - Washington, D.C. Dulles Intl), you can expect to pay $214 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, August is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. (average of $241). Flying from San Antonio to Washington, D.C. in March is currently the most expensive (average of $290). 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.

See more FAQs

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Fredericksburg

Woodbridge

Gaithersburg

Linthicum Heights

Silver Spring

Falls Church

Laurel

Easton

Herndon

Bowie

Gettysburg

National Harbor

Oxon Hill

Reston

Browse thousands of different options on Cheapflights for your next trip

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

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$85	Average$170	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$139	Average$226	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$202	Average$366	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$204	Average$401	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$216	Average$382	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$239	Average$417	FlexibilityNo cancel fee	On-time69%

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$48+ 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 5/9. 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 August or July, booked 51 days in advance, depart on a Thursday or Friday and return on a Wednesday

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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 April 11, 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 April 11, 2025.

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

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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 April 4, 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 April 11, 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 March 30, 2025.

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

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

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.

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

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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 April 11, 2025.