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

Currently priced at $177, Delta will fly you from San Antonio to Washington, D.C. Reagan-National Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $194 and $208, respectively. Delta is 47% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $89. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from San Antonio to Washington, D.C. Reagan-National Airport for a low price.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport 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. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 cheapest flights from San Antonio to Washington, D.C. Reagan-National Airport?

Looking for the cheapest flight from San Antonio to Washington, D.C. Reagan-National Airport? While on average our users pay $351, our data indicates the cheapest price to be $175. The most popular route (San Antonio - Washington, D.C. Reagan-National), is priced around $184.

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

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

Most accurate provider : When it comes to deals on San Antonio-Washington, D.C. Reagan-National Airport 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. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National?

For a flight from San Antonio to Washington, D.C. Reagan-National, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city. San Antonio is the only San Antonio airport and it handles 0 outbound flights to Washington, D.C. Reagan-National per day. 4 airlines have flights to Washington, D.C. Reagan-National from San Antonio on a regular basis.

Can I find deals for flights from San Antonio to Reagan-National that include hotel bookings?

Yes. In addition to deals on San Antonio to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Antonio to Reagan-National?

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

Can I find deals for business class flights from San Antonio to Reagan-National?

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

$65+ Flights from San Antonio to Washington, D.C. Reagan-National Airport

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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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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from San Antonio to Washington, D.C. Reagan-National are usually found in September or February, booked 78 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Find flight deals from San Antonio to Reagan-National

Cheapest flights from San Antonio to Reagan-National
Explore the most affordable flight options available from San Antonio to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Thu 12/46:48 amSAT - DCA

Nonstop3h 12mAmerican Airlines

Sat 12/67:44 pmDCA - SAT

Nonstop3h 51mAmerican Airlines

Deal found 10/30

$249

Wed 11/2611:05 amSAT - DCA

1 stop28h 52mFrontier

Wed 12/36:00 pmDCA - SAT

1 stop21h 11mFrontier

Deal found 10/29

$250

Fri 11/148:25 pmSAT - DCA

1 stop15h 37mFrontier

Sun 11/232:00 pmDCA - SAT

1 stop11h 20mFrontier

Deal found 10/29

$256

Mon 11/178:25 pmSAT - DCA

1 stop19h 34mFrontier

Fri 11/216:00 pmDCA - SAT

1 stop7h 20mFrontier

Deal found 10/29

$257

Sat 11/83:12 pmSAT - DCA

1 stop29h 47mFrontier

Mon 11/108:15 amDCA - SAT

1 stop12h 15mFrontier

Deal found 10/28

$261

Sat 12/136:47 amSAT - DCA

Nonstop3h 12mAmerican Airlines

Wed 12/177:44 pmDCA - SAT

Nonstop3h 51mAmerican Airlines

Deal found 10/30

$263

Mon 12/86:50 amSAT - DCA

1 stop6h 50mSouthwest

Tue 12/92:40 pmDCA - SAT

1 stop5h 15mSouthwest

Deal found 10/29

$264

Wed 11/195:30 amSAT - DCA

1 stop4h 59mUnited Airlines

Tue 11/258:15 amDCA - SAT

1 stop5h 49mUnited Airlines

Deal found 10/28

$269

Thu 11/276:00 amSAT - DCA

1 stop9h 29mAmerican Airlines

Thu 12/47:44 pmDCA - SAT

Nonstop3h 51mAmerican Airlines

Deal found 10/28

$273

Sat 12/132:05 pmSAT - DCA

1 stop5h 15mSouthwest

Wed 12/176:05 amDCA - SAT

2 stops6h 50mSouthwest

Deal found 10/29

$274

Best flights from San Antonio to Reagan-National
Discover carefully curated flight deals from San Antonio to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

Mon 12/86:50 amSAT - DCA

1 stop6h 50mSouthwest

Tue 12/92:40 pmDCA - SAT

1 stop5h 15mSouthwest

Deal found 10/29

$264

Mon 12/811:51 amSAT - DCA

1 stop6h 08mDelta

Tue 12/97:40 pmDCA - SAT

1 stop5h 54mDelta

Deal found 10/30

$269

Fri 11/2111:40 amSAT - DCA

1 stop6h 02mUnited Airlines

Sat 11/222:45 pmDCA - SAT

1 stop7h 35mUnited Airlines

Deal found 10/29

$269

Thu 12/46:30 amSAT - DCA

1 stop7h 30mDelta

Sat 12/66:21 pmDCA - SAT

1 stop6h 48mDelta

Deal found 10/28

$269

Thu 12/112:35 pmSAT - DCA

1 stop5h 10mSouthwest

Sun 12/147:30 pmDCA - SAT

1 stop5h 45mSouthwest

Deal found 10/30

$269

Tue 11/252:14 pmSAT - DCA

1 stop6h 55mUnited Airlines

Fri 11/2810:30 amDCA - SAT

1 stop6h 50mUnited Airlines

Deal found 10/29

$269

Fri 12/127:05 amSAT - DCA

1 stop7h 56mDelta

Sun 1/43:00 pmDCA - SAT

1 stop7h 53mDelta

Deal found 10/28

$269

Tue 11/1811:50 amSAT - DCA

1 stop6h 09mDelta

Sun 11/236:00 amDCA - SAT

1 stop7h 10mDelta

Deal found 10/28

$269

Sat 12/65:55 pmSAT - DCA

1 stop4h 45mDelta

Sun 12/76:21 pmDCA - SAT

1 stop7h 13mDelta

Deal found 10/29

$269

Last-minute flights from San Antonio to Reagan-National
Discover last-minute flight deals from San Antonio to Reagan-National. Data last updated October 30, 2025 and is based on user searches.

Thu 10/308:43 pmSAT - DCA

1 stop15h 19mFrontier

Thu 11/68:15 amDCA - SAT

1 stop11h 51mFrontier

Deal found 10/29

$275

Sat 11/83:12 pmSAT - DCA

1 stop29h 47mFrontier

Mon 11/108:15 amDCA - SAT

1 stop12h 15mFrontier

Deal found 10/28

$261

Fri 11/148:25 pmSAT - DCA

1 stop15h 37mFrontier

Sun 11/232:00 pmDCA - SAT

1 stop11h 20mFrontier

Deal found 10/29

$256

Fri 11/1411:50 amSAT - DCA

1 stop6h 09mDelta

Mon 11/176:26 pmDCA - SAT

1 stop7h 12mDelta

Deal found 10/28

$289

Mon 11/178:25 pmSAT - DCA

1 stop19h 34mFrontier

Fri 11/216:00 pmDCA - SAT

1 stop7h 20mFrontier

Deal found 10/29

$257

Tue 11/186:50 amSAT - DCA

Nonstop3h 09mAmerican Airlines

Sun 11/237:59 pmDCA - SAT

Nonstop4h 06mAmerican Airlines

Deal found 10/30

$279

Tue 11/189:45 amSAT - DCA

1 stop5h 13mUnited Airlines

Tue 11/254:34 pmDCA - SAT

1 stop5h 46mUnited Airlines

Deal found 10/28

$283

Wed 11/196:50 amSAT - DCA

Nonstop3h 09mAmerican Airlines

Sun 11/237:59 pmDCA - SAT

Nonstop4h 06mAmerican Airlines

Deal found 10/28

$249

Wed 11/195:30 amSAT - DCA

1 stop4h 59mUnited Airlines

Tue 11/258:15 amDCA - SAT

1 stop5h 49mUnited Airlines

Deal found 10/28

$269

Wed 11/2611:05 amSAT - DCA

1 stop28h 52mFrontier

Wed 12/36:00 pmDCA - SAT

1 stop21h 11mFrontier

Deal found 10/29

$250

Thu 11/276:00 amSAT - DCA

1 stop9h 29mAmerican Airlines

Thu 12/47:44 pmDCA - SAT

Nonstop3h 51mAmerican Airlines

Deal found 10/28

$273

Thu 11/275:00 amSAT - DCA

1 stop5h 40mSouthwest

Thu 12/43:45 pmDCA - SAT

2 stops7h 10mSouthwest

Deal found 10/28

$274

One-way flights from San Antonio to Reagan-National
Search for one-way flight options from San Antonio to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Thu 11/207:00 amSAT - DCA

1 stop8h 57mFrontier

Deal found 10/28

$65

Mon 1/2610:13 amSAT - DCA

1 stop25h 52mFrontier

Deal found 10/30

$72

Thu 11/138:38 pmSAT - DCA

1 stop19h 18mFrontier

Deal found 10/28

$75

Sun 12/1410:25 amSAT - DCA

1 stop10h 34mFrontier

Deal found 10/30

$78

Tue 2/104:13 pmSAT - DCA

1 stop19h 52mFrontier

Deal found 10/30

$79

Sun 12/710:25 amSAT - DCA

1 stop25h 41mFrontier

Deal found 10/29

$83

Thu 1/2910:13 amSAT - DCA

1 stop10h 46mFrontier

Deal found 10/30

$88

Fri 12/127:55 pmSAT - DCA

1 stop16h 11mFrontier

Deal found 10/29

$89

Sun 1/1810:13 amSAT - DCA

1 stop10h 46mFrontier

Deal found 10/30

$93

Thu 11/68:25 pmSAT - DCA

1 stop24h 34mFrontier

Deal found 10/28

$103

Cheap flight deals from San Antonio to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$249 (American Airlines)
One-way from	$65 (Frontier)
Popular in	March
Cheapest in	September
Average price	$359
Good round-trip deal	$315 or less
Good one-way deal	$238 or less

Provider with most accurate pricing for San Antonio-Washington, D.C. Reagan-National flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-Washington, D.C. Reagan-National flights.

Search Deals

From San Antonio to Washington, D.C. Reagan-National

Search Deals

One-way flight from San Antonio to Washington, D.C. Reagan-National

Search Deals

High demand for flights, 3% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Price to beat on a round-trip flight from San Antonio to Washington, D.C. Reagan-National.

Search Deals

Price to beat on a one-way flight from San Antonio to Washington, D.C. Reagan-National.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Mon 12/8

6:50 am-2:40 pm

1 stop6h 50m

Washington, D.C. Reagan-National

Tue 12/9

2:40 pm-6:55 pm

1 stop5h 15m

$264

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Mon 12/8

11:51 am-6:59 pm

1 stop6h 08m

Washington, D.C. Reagan-National

Tue 12/9

7:40 pm-12:34 am

1 stop5h 54m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 11/21

11:40 am-6:42 pm

1 stop6h 02m

Washington, D.C. Reagan-National

Sat 11/22

2:45 pm-9:20 pm

1 stop7h 35m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 12/4

6:30 am-3:00 pm

1 stop7h 30m

Washington, D.C. Reagan-National

Sat 12/6

6:21 pm-12:09 am

1 stop6h 48m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Thu 12/11

2:35 pm-8:45 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Sun 12/14

7:30 pm-12:15 am

1 stop5h 45m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 11/25

2:14 pm-10:09 pm

1 stop6h 55m

Washington, D.C. Reagan-National

Fri 11/28

10:30 am-4:20 pm

1 stop6h 50m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 12/12

7:05 am-4:01 pm

1 stop7h 56m

Washington, D.C. Reagan-National

Sun 1/4

3:00 pm-9:53 pm

1 stop7h 53m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Tue 11/18

11:50 am-6:59 pm

1 stop6h 09m

Washington, D.C. Reagan-National

Sun 11/23

6:00 am-12:10 pm

1 stop7h 10m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Sat 12/6

5:55 pm-11:40 pm

1 stop4h 45m

Washington, D.C. Reagan-National

Sun 12/7

6:21 pm-12:34 am

1 stop7h 13m

$269

San AntonioWashington, D.C.

SAT - DCA

SATDCA

San Antonio

Fri 1/30

10:13 am-9:59 pm

1 stop10h 46m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 17 results

Compare providers for flights from San Antonio to Reagan-National

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Reagan-National in October.

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

*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. Reagan-National Airport 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. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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 Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

The best time to book flights from San Antonio to Washington, D.C. Reagan-National Airport is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $118). Flying from San Antonio to Washington, D.C. Reagan-National Airport in January is currently the most expensive (average of $234). 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 DCA?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 55% on flights from San Antonio to Washington, D.C. Reagan-National Airport by exploring options for tickets in the evening.

Reviews of airlines servicing Reagan-National

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Washington, D.C. Reagan-National Airport 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

4,243 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,243 reviews

Southwest

8.0

Very good

4,243 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

7.9

Good

7,998 reviews

Southwest

8.0

Very good

4,243 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,998 reviews

Southwest

8.0

Very good

4,243 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

11,035 reviews

Southwest

8.0

Very good

4,243 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

What airport do you fly from for flights from San Antonio to Washington, D.C. Reagan-National?
For a flight from San Antonio to Washington, D.C. Reagan-National, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city. San Antonio is the only San Antonio airport and it handles 0 outbound flights to Washington, D.C. Reagan-National per day. 4 airlines have flights to Washington, D.C. Reagan-National from San Antonio on a regular basis.
How long is the flight from San Antonio to Washington, D.C. Reagan-National Airport?
For as low as $269, Southwest can have you in Washington, D.C. Reagan-National Airport from San Antonio in 6h 02m. The distance from San Antonio to Washington, D.C. Reagan-National Airport is about 1378 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from San Antonio to Washington, D.C. Reagan-National Airport round-trip?
Currently priced at $177, Delta will fly you from San Antonio to Washington, D.C. Reagan-National Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $194 and $208, respectively. Delta is 47% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from San Antonio to Washington, D.C. Reagan-National Airport one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $89. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from San Antonio to Washington, D.C. Reagan-National Airport for a low price.
What are the cheapest flights from San Antonio to Washington, D.C. Reagan-National Airport?
Looking for the cheapest flight from San Antonio to Washington, D.C. Reagan-National Airport? While on average our users pay $351, our data indicates the cheapest price to be $175. The most popular route (San Antonio - Washington, D.C. Reagan-National), is priced around $184.
Can I find deals for flights from San Antonio to Reagan-National that include hotel bookings?
Yes. In addition to deals on San Antonio to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Reagan-National.
Can I find deals for business class flights from San Antonio to Reagan-National?
Yes. Cheapflights offers flight deals from San Antonio to Reagan-National 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. Reagan-National Airport?
Currently, May is the cheapest month in which you can book a flight from San Antonio to Washington, D.C. Reagan-National Airport (average of $118). Flying from San Antonio to Washington, D.C. Reagan-National Airport in January is currently the most expensive (average of $234). 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 4 airlines flying from San Antonio to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$177	Average$342	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$194	Average$373	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$208	Average$327	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$259	Average$394	FlexibilityNo cancel fee	On-time69%

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$65+ Cheap flights from San Antonio (SAT) to Reagan-National (DCA)

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Antonio to Washington, D.C. Reagan-National are usually found in September or February, booked 78 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Find flight deals from San Antonio to Reagan-National

Cheapest flights from San Antonio to Reagan-NationalExplore the most affordable flight options available from San Antonio to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Explore the most affordable flight options available from San Antonio to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Cheap flight deals from San Antonio to Reagan-National

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

Cheapflights Fare Finder

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

Compare providers for flights from San Antonio to Reagan-National

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 Reagan-National in October.

Best time to book a flight from San Antonio to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

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

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

Reviews of airlines servicing Reagan-National

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Reagan-National. 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. Reagan-National?

How long is the flight from San Antonio to Washington, D.C. Reagan-National Airport?

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

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

What are the cheapest flights from San Antonio to Washington, D.C. Reagan-National Airport?

Can I find deals for flights from San Antonio to Reagan-National that include hotel bookings?

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Alternative routes for San Antonio to Reagan-National

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Top 4 airlines flying from San Antonio to Reagan-National

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Cheapest flights from San Antonio to Reagan-National
Explore the most affordable flight options available from San Antonio to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.