How popular is this San Antonio to District of Columbia flight route?

This flight path from San Antonio to District of Columbia was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines to fly from San Antonio to District of Columbia one-way?

$109 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $113 and $116, respectively.

What are the cheapest flights from San Antonio to District of Columbia?

On average you can expect to pay $318 for a flight from San Antonio to District of Columbia. The cheapest flight overall is $118 while the most popular route, (San Antonio - Washington, D.C. Dulles Intl) is currently priced at $231.

What are the most popular airlines that fly from San Antonio to District of Columbia?

When booking a flight from San Antonio to District of Columbia, you may want to consider flying on American Airlines, Delta or Spirit Airlines as they are the most popular for this route.

How far in advance should I book a flight from San Antonio to District of Columbia?

Travelers have found it’s best to book a flight 52 days in advance to save up to 99% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Antonio to District of Columbia 1-2 weeks in advance for as low as $325, or $477 for flights within the next 24 hours.

What is the cheapest month to fly from San Antonio to District of Columbia?

Our data shows that August tends to be the cheapest month to fly to District of Columbia 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.

What airport do you fly from for flights from San Antonio to District of Columbia?

If you book a flight to District of Columbia from San Antonio, you will be flying from San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio.

How can I find direct flights from San Antonio to District of Columbia?

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

Can I find deals for business class flights from San Antonio to District of Columbia?

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

$109+ Flights from San Antonio to District of Columbia

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Cheap flight deals from San Antonio to District of Columbia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$205 (American Airlines)
One-way from	$109 (Trip.com)
Popular in	November
Cheapest in	August
Average price	$331
Good round-trip deal	$249 or less
Good one-way deal	$176 or less

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

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

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From San Antonio to District of Columbia

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One-way flight from San Antonio to District of Columbia

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

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Price to beat on a round-trip flight from San Antonio to District of Columbia.

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Price to beat on a one-way flight from San Antonio to District of Columbia.

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Find flight deals from San Antonio to District of Columbia

Cheapest flights from San Antonio to District of Columbia
Explore the most affordable flight options available from San Antonio to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Wed 5/216:34 amSAT - DCA

Nonstop3h 21mAmerican Airlines

Wed 5/287:45 pmDCA - SAT

Nonstop3h 39mAmerican Airlines

Deal found 4/9

$205

Thu 5/297:15 amSAT - IAD

Nonstop3h 21mUnited Airlines

Mon 6/28:30 amIAD - SAT

Nonstop3h 30mUnited Airlines

Deal found 4/10

$214

Sun 5/253:30 pmSAT - DCA

1 stop5h 45mSouthwest

Sat 5/317:25 amDCA - SAT

1 stop8h 00mSouthwest

Deal found 4/8

$239

Sat 5/36:25 pmSAT - IAD

1 stop5h 00mDelta

Tue 5/137:05 amIAD - SAT

1 stop5h 08mDelta

Deal found 4/11

$251

Sat 5/174:42 pmSAT - DCA

1 stop6h 01mDelta

Wed 5/216:00 amDCA - SAT

1 stop5h 35mDelta

Deal found 4/9

$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 4/242:28 pmSAT - IAD

1 stop7h 14mAmerican Airlines

Sat 4/265:00 amIAD - SAT

2 stops9h 38mAmerican Airlines

Deal found 4/10

$314

Fri 6/610:51 pmSAT - IAD

2 stops14h 41mMultiple Airlines

Sun 6/811:52 amIAD - SAT

1 stop6h 16mMultiple Airlines

Deal found 4/10

$338

Fri 5/93:22 pmSAT - DCA

1 stop24h 37mFrontier

Sun 5/117:00 amDCA - SAT

1 stop13h 35mFrontier

Deal found 4/9

$350

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

Best flights from San Antonio to District of Columbia
Discover carefully curated flight deals from San Antonio to District of Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 11, 2025.

Wed 5/216:34 amSAT - DCA

Nonstop3h 21mAmerican Airlines

Wed 5/287:45 pmDCA - SAT

Nonstop3h 39mAmerican Airlines

Deal found 4/9

$205

Thu 5/297:15 amSAT - IAD

Nonstop3h 21mUnited Airlines

Mon 6/28:30 amIAD - SAT

Nonstop3h 30mUnited Airlines

Deal found 4/10

$214

Sun 5/253:30 pmSAT - DCA

1 stop5h 45mSouthwest

Sat 5/317:25 amDCA - SAT

1 stop8h 00mSouthwest

Deal found 4/8

$239

Tue 6/175:25 amSAT - IAD

1 stop8h 11mDelta

Tue 6/245:24 pmIAD - SAT

1 stop5h 47mDelta

Deal found 4/10

$251

Fri 4/257:59 pmSAT - IAD

1 stop19h 36mFrontier

Sun 4/275:25 pmIAD - SAT

1 stop26h 34mFrontier

Deal found 4/10

$271

Fri 6/610:51 pmSAT - IAD

2 stops14h 41mMultiple Airlines

Sun 6/811:52 amIAD - SAT

1 stop6h 16mMultiple Airlines

Deal found 4/10

$338

Sat 5/176:33 amSAT - DCA

1 stop7h 15mDelta

Tue 5/209:40 amDCA - SAT

1 stop6h 25mDelta

Deal found 4/9

$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

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 4/242:28 pmSAT - IAD

1 stop7h 14mAmerican Airlines

Sat 4/265:00 amIAD - SAT

2 stops9h 38mAmerican Airlines

Deal found 4/10

$314

Fri 5/93:22 pmSAT - DCA

1 stop24h 37mFrontier

Sun 5/117:00 amDCA - SAT

1 stop13h 35mFrontier

Deal found 4/9

$350

Last-minute flights from San Antonio to District of Columbia
Discover last-minute flight deals from San Antonio to District of Columbia. Data last updated April 11, 2025 and is based on user searches.

Tue 4/155:30 amSAT - DCA

1 stop4h 55mDelta

Tue 4/296:00 amDCA - SAT

1 stop5h 45mDelta

Deal found 4/9

$325

Tue 4/152:44 pmSAT - DCA

1 stop20h 20mFrontier

Wed 4/166:00 pmDCA - SAT

1 stop26h 01mFrontier

Deal found 4/8

$390

Tue 4/155:15 pmSAT - DCA

1 stop4h 55mSouthwest

Tue 4/226:05 amDCA - SAT

1 stop6h 00mSouthwest

Deal found 4/10

$454

Tue 4/156:05 amSAT - IAD

1 stop7h 00mSouthwest

Tue 4/222:50 pmIAD - SAT

1 stop8h 35mSouthwest

Deal found 4/10

$459

Tue 4/157:00 amSAT - DCA

1 stop13h 59mAlaska Airlines

Tue 4/298:00 amDCA - SAT

2 stops13h 55mAlaska Airlines

Deal found 4/9

$1,074

Thu 4/175:30 amSAT - IAD

1 stop4h 53mDelta

Sat 4/196:00 amIAD - SAT

1 stop7h 34mDelta

Deal found 4/10

$328

Thu 4/179:13 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 4/9

$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

Thu 4/1710:09 amSAT - IAD

3 stops25h 14mMultiple Airlines

Sat 4/198:25 amIAD - SAT

3 stops36h 09mMultiple Airlines

Deal found 4/10

$582

One-way flights from San Antonio to District of Columbia
Search for one-way flight options from San Antonio to District of Columbia. Find affordable one-way fares based on user searches. Data last updated April 11, 2025.

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

Tue 6/246:20 amSAT - DCA

1 stop5h 20mSouthwest

Deal found 4/9

$121

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

Sun 8/3111:42 amSAT - DCA

2 stops10h 01mUnited Airlines

Deal found 4/9

$145

Wed 6/112:37 pmSAT - IAD

2 stops19h 25mMultiple Airlines

Deal found 4/10

$151

Sat 5/106:00 amSAT - IAD

2 stops9h 56mAmerican Airlines

Deal found 4/10

$165

Fri 5/163:22 pmSAT - DCA

1 stop19h 45mFrontier

Deal found 4/9

$176

Mon 5/266:30 amSAT - DCA

1 stop14h 29mMultiple Airlines

Deal found 4/10

$641

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

Sun 5/25

3:30 pm-10:15 pm

1 stop5h 45m

Washington, D.C. Reagan-National

Sat 5/31

7:25 am-2:25 pm

1 stop8h 00m

$239

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

Sat 5/17

6:33 am-12:43 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Sat 5/17

6:34 pm-12:21 am

1 stop6h 47m

$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 AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Mon 5/5

8:00 am-5:55 pm

1 stop8h 55m

Washington, D.C. Dulles Intl

Wed 5/7

7:50 am-5:45 pm

2 stops10h 55m

$294

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Thu 4/24

2:28 pm-10:42 pm

1 stop7h 14m

Washington, D.C. Dulles Intl

Mon 4/28

4:52 pm-11:58 pm

2 stops8h 06m

$314

San AntonioWashington, D.C.

SAT - IAD

SATIAD

San Antonio

Fri 6/6

10:51 pm-2:32 pm

2 stops14h 41m

Washington, D.C. Dulles Intl

Sun 6/8

11:52 am-5:08 pm

1 stop6h 16m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 24 results

Best time to book a flight from San Antonio to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

What is the cheapest month to book a flight from San Antonio to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from San Antonio to District of Columbia (average of $241). Flying from San Antonio to District of Columbia 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 DC?

When flying from San Antonio to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in District of Columbia by month

In terms of precipitation, rainfall in District of Columbia 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 District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

If weather is an important factor for your trip to District of Columbia, 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 District of Columbia

See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Antonio to District of Columbia have to say. Users have also rated airlines 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

7,910 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 >

American Airlines

7.2

Good

10,000 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 District of Columbia?
If you book a flight to District of Columbia from San Antonio, you will be flying from San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio.
How popular is this San Antonio to District of Columbia flight route?
This flight path from San Antonio to District of Columbia was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from San Antonio to District of Columbia one-way?
$109 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $113 and $116, respectively.
What are the cheapest flights from San Antonio to District of Columbia?
On average you can expect to pay $318 for a flight from San Antonio to District of Columbia. The cheapest flight overall is $118 while the most popular route, (San Antonio - Washington, D.C. Dulles Intl) is currently priced at $231.
Can I find deals for flights from San Antonio to District of Columbia that include hotel bookings?
Yes. In addition to deals on San Antonio to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to District of Columbia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to District of Columbia.
Can I find deals for business class flights from San Antonio to District of Columbia?
Yes. Cheapflights offers flight deals from San Antonio to District of Columbia 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 District of Columbia?
Currently, August is the cheapest month in which you can book a flight from San Antonio to District of Columbia (average of $241). Flying from San Antonio to District of Columbia 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from San Antonio to District of Columbia

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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$109+ Cheap flights from San Antonio (SAT) to District of Columbia

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to District of Columbia with Cheapflights

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Cheap flight deals from San Antonio to District of Columbia

Keep the following information in mind while searching for San Antonio to District of Columbia flight deals. Data was last updated April 11, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from San Antonio to District of Columbia

Cheapest flights from San Antonio to District of ColumbiaExplore the most affordable flight options available from San Antonio to District of Columbia. 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 District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to District of Columbia that are best for you.

Best time to book a flight from San Antonio to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to District of Columbia

What is the cheapest month to book a flight from San Antonio to District of Columbia?

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

Find hourly flight availability from San Antonio to District of Columbia. 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.

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

Reviews of airlines servicing District of Columbia

See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Antonio to District of Columbia have to say. Users have also rated airlines 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 District of Columbia. 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 District of Columbia?

How popular is this San Antonio to District of Columbia flight route?

What are the cheapest airlines to fly from San Antonio to District of Columbia one-way?

What are the cheapest flights from San Antonio to District of Columbia?

Can I find deals for flights from San Antonio to District of Columbia that include hotel bookings?

How can I find direct flights from San Antonio to District of Columbia?

Can I find deals for business class flights from San Antonio to District of Columbia?

What is the cheapest month to book a flight from San Antonio to District of Columbia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to District of Columbia

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

Top 6 airlines flying from San Antonio to District of Columbia

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Cheapest flights from San Antonio to District of Columbia
Explore the most affordable flight options available from San Antonio to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.