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

Houston (IAH) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. Reagan-National Airport to San Antonio on Cheapflights.

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

Dallas (DAL) is the most affordable 1-stop option, with an average round-trip price of $308.

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

Flights via Dallas (DAL) have the shortest average one-way travel time for 1-stop routes: 5h 40m.

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

Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 34m.

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

Frontier, at $128, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to San Antonio.Alternate airlines to your destination round-trip include American Airlines and Southwest. Users have found that Frontier is 65% cheaper than the other options available to this destination.

Weekly flight availability from Washington, D.C. Reagan-National Airport to San Antonio

The most flights from DCA to SAT are scheduled on a Monday (2 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

If weather is an important factor for your trip to San Antonio, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to San Antonio? While on average our users pay $321, our data indicates the cheapest price to be $95. The most popular route (Washington, D.C. Reagan-National - San Antonio), is priced around $174.

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

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

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

Tuesday is generally a great day to depart. Flying on this day could help you save up to 53%.

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

August is one of the best times of the year to fly to San Antonio from Washington, D.C. Reagan-National Airport. Prices for August average $380 per person but you can even find prices for as low as $187. The most expensive prices can be found in the month of December. Opting for a August flight can save you 27% on your journey compared to booking in December

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

Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Washington, D.C. Reagan-National. On average, San Antonio has 1 inbound flight from Washington, D.C. Reagan-National per day from 5 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

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

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

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

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

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

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

$76+ Flights from Washington, D.C. Reagan-National Airport to San Antonio

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

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”

2. Select your favorite providers

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.

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 Washington, D.C. Reagan-National to San Antonio are usually found in February or August, booked 66 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from Reagan-National to San Antonio

Round-trip from	$237 (Delta)
One-way from	$76 (Southwest)
Popular in	December
Cheapest in	February
Average price	$343
Good round-trip deal	$249 or less
Good one-way deal	$148 or less

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($61 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

Search Deals

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

Search Deals

Find flight deals from Reagan-National to San Antonio

Cheapest flights from Reagan-National to San Antonio
Explore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Thu 10/27:25 pmDCA - SAT

1 stop5h 45mSouthwest

Wed 10/86:15 amSAT - DCA

2 stops6h 45mSouthwest

Deal found 9/9

$235

Wed 12/179:35 amDCA - SAT

1 stop7h 27mDelta

Thu 12/255:10 amSAT - DCA

1 stop5h 33mDelta

Deal found 9/10

$237

Tue 10/212:35 pmDCA - SAT

2 stops9h 40mSouthwest

Fri 10/243:20 pmSAT - DCA

1 stop6h 25mSouthwest

Deal found 9/9

$240

Tue 10/77:59 pmDCA - SAT

Nonstop3h 57mAmerican Airlines

Sat 10/116:35 amSAT - DCA

Nonstop3h 14mAmerican Airlines

Deal found 9/9

$241

Wed 10/17:59 pmDCA - SAT

Nonstop3h 37mAmerican Airlines

Sun 10/56:35 amSAT - DCA

Nonstop3h 20mAmerican Airlines

Deal found 9/10

$242

Tue 10/212:35 pmDCA - SAT

2 stops9h 40mSouthwest

Thu 10/236:15 pmSAT - DCA

1 stop4h 30mSouthwest

Deal found 9/9

$243

Thu 9/253:05 pmDCA - SAT

1 stop8h 20mSouthwest

Wed 10/15:05 pmSAT - DCA

1 stop5h 10mSouthwest

Deal found 9/10

$244

Mon 9/227:00 amDCA - SAT

1 stop13h 15mFrontier

Thu 9/258:20 pmSAT - DCA

1 stop24h 39mFrontier

Deal found 9/10

$248

Thu 10/27:59 pmDCA - SAT

Nonstop3h 37mAmerican Airlines

Mon 10/66:35 amSAT - DCA

Nonstop3h 14mAmerican Airlines

Deal found 9/10

$249

Fri 10/247:59 pmDCA - SAT

Nonstop3h 57mAmerican Airlines

Fri 10/316:35 amSAT - DCA

Nonstop3h 14mAmerican Airlines

Deal found 9/9

$250

Thu 10/236:10 amDCA - SAT

1 stop8h 05mSouthwest

Mon 10/276:15 pmSAT - DCA

1 stop4h 30mSouthwest

Deal found 9/9

$252

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

Thu 10/27:25 pmDCA - SAT

1 stop5h 45mSouthwest

Wed 10/86:15 amSAT - DCA

2 stops6h 45mSouthwest

Deal found 9/9

$235

Wed 10/229:45 amDCA - SAT

1 stop7h 11mDelta

Wed 10/296:41 amSAT - DCA

1 stop7h 12mDelta

Deal found 9/10

$237

Wed 10/15:00 pmDCA - SAT

1 stop6h 55mUnited Airlines

Sun 10/55:30 amSAT - DCA

1 stop5h 04mUnited Airlines

Deal found 9/9

$264

Thu 10/166:00 amDCA - SAT

1 stop5h 40mDelta

Tue 10/214:35 pmSAT - DCA

1 stop5h 24mDelta

Deal found 9/9

$237

Sat 10/117:25 amDCA - SAT

1 stop5h 30mSouthwest

Sat 10/1811:50 amSAT - DCA

2 stops6h 45mSouthwest

Deal found 9/10

$253

Sat 11/15:22 pmDCA - SAT

1 stop6h 20mDelta

Tue 11/45:14 amSAT - DCA

1 stop5h 17mDelta

Deal found 9/11

$255

Sat 10/187:25 amDCA - SAT

1 stop5h 30mSouthwest

Wed 10/225:45 amSAT - DCA

2 stops8h 15mSouthwest

Deal found 9/11

$259

Wed 12/107:59 amDCA - SAT

1 stop6h 42mDelta

Sun 12/144:35 pmSAT - DCA

1 stop5h 32mDelta

Deal found 9/11

$262

Wed 10/222:35 pmDCA - SAT

2 stops9h 40mSouthwest

Fri 10/243:20 pmSAT - DCA

1 stop6h 25mSouthwest

Deal found 9/10

$267

Sat 10/410:09 amDCA - SAT

1 stop7h 06mDelta

Fri 10/102:31 pmSAT - DCA

1 stop7h 54mDelta

Deal found 9/11

$262

Sat 11/157:00 amDCA - SAT

1 stop6h 10mDelta

Mon 11/172:46 pmSAT - DCA

1 stop7h 55mDelta

Deal found 9/8

$269

Last-minute flights from Reagan-National to San Antonio
Discover last-minute flight deals from Reagan-National to San Antonio. Data last updated September 11, 2025 and is based on user searches.

Mon 9/227:00 amDCA - SAT

1 stop13h 15mFrontier

Thu 9/258:20 pmSAT - DCA

1 stop24h 39mFrontier

Deal found 9/10

$248

Thu 9/253:05 pmDCA - SAT

1 stop8h 20mSouthwest

Wed 10/15:05 pmSAT - DCA

1 stop5h 10mSouthwest

Deal found 9/10

$244

Wed 10/17:59 pmDCA - SAT

Nonstop3h 37mAmerican Airlines

Sun 10/56:35 amSAT - DCA

Nonstop3h 20mAmerican Airlines

Deal found 9/10

$242

Thu 10/27:25 pmDCA - SAT

1 stop5h 45mSouthwest

Wed 10/86:15 amSAT - DCA

2 stops6h 45mSouthwest

Deal found 9/9

$235

Thu 10/27:59 pmDCA - SAT

Nonstop3h 37mAmerican Airlines

Sun 10/56:35 amSAT - DCA

Nonstop3h 20mAmerican Airlines

Deal found 9/11

$249

Tue 10/77:59 amDCA - SAT

1 stop6h 29mDelta

Sat 10/112:55 pmSAT - DCA

1 stop7h 46mDelta

Deal found 9/9

$237

Tue 10/77:59 pmDCA - SAT

Nonstop3h 57mAmerican Airlines

Sat 10/116:35 amSAT - DCA

Nonstop3h 14mAmerican Airlines

Deal found 9/9

$241

Tue 10/212:35 pmDCA - SAT

2 stops9h 40mSouthwest

Fri 10/243:20 pmSAT - DCA

1 stop6h 25mSouthwest

Deal found 9/9

$240

Tue 10/212:35 pmDCA - SAT

2 stops9h 40mSouthwest

Thu 10/236:15 pmSAT - DCA

1 stop4h 30mSouthwest

Deal found 9/9

$243

Thu 10/236:10 amDCA - SAT

1 stop8h 05mSouthwest

Mon 10/276:15 pmSAT - DCA

1 stop4h 30mSouthwest

Deal found 9/9

$252

Fri 10/247:59 pmDCA - SAT

Nonstop3h 57mAmerican Airlines

Fri 10/316:35 amSAT - DCA

Nonstop3h 14mAmerican Airlines

Deal found 9/9

$250

One-way flights from Reagan-National to San Antonio
Search for one-way flight options from Reagan-National to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Tue 12/92:40 pmDCA - SAT

1 stop5h 15mSouthwest

Deal found 9/10

$76

Wed 10/226:00 amDCA - SAT

1 stop5h 30mSouthwest

Deal found 9/11

$80

Tue 10/146:00 amDCA - SAT

1 stop7h 00mSouthwest

Deal found 9/10

$87

Tue 11/411:35 amDCA - SAT

2 stops11h 15mSouthwest

Deal found 9/11

$91

Thu 12/42:40 pmDCA - SAT

1 stop5h 15mSouthwest

Deal found 9/11

$97

Mon 11/107:30 pmDCA - SAT

1 stop5h 45mSouthwest

Deal found 9/11

$102

Sat 10/257:00 amDCA - SAT

1 stop10h 37mFrontier

Deal found 9/9

$104

Thu 11/63:10 pmDCA - SAT

1 stop10h 15mSouthwest

Deal found 9/11

$108

Sun 11/168:15 amDCA - SAT

1 stop12h 15mFrontier

Deal found 9/11

$109

Wed 10/87:00 amDCA - SAT

1 stop29h 14mFrontier

Deal found 9/10

$118

Sat 10/115:22 pmDCA - SAT

1 stop6h 20mDelta

Deal found 9/9

$119

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 10/2

7:25 pm-12:10 am

1 stop5h 45m

San Antonio

Wed 10/8

6:15 am-2:00 pm

2 stops6h 45m

$235

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 10/22

9:45 am-3:56 pm

1 stop7h 11m

San Antonio

Wed 10/29

6:41 am-2:53 pm

1 stop7h 12m

$237

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 10/16

6:00 am-10:40 am

1 stop5h 40m

San Antonio

Tue 10/21

4:35 pm-10:59 pm

1 stop5h 24m

$237

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 10/11

7:25 am-11:55 am

1 stop5h 30m

San Antonio

Sat 10/18

11:50 am-7:35 pm

2 stops6h 45m

$253

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 11/1

5:22 pm-10:42 pm

1 stop6h 20m

San Antonio

Tue 11/4

5:14 am-11:31 am

1 stop5h 17m

$255

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 10/18

7:25 am-11:55 am

1 stop5h 30m

San Antonio

Wed 10/22

5:45 am-3:00 pm

2 stops8h 15m

$259

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 12/10

7:59 am-1:41 pm

1 stop6h 42m

San Antonio

Sun 12/14

4:35 pm-11:07 pm

1 stop5h 32m

$262

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 10/4

10:09 am-4:15 pm

1 stop7h 06m

San Antonio

Fri 10/10

2:31 pm-11:25 pm

1 stop7h 54m

$262

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 10/1

5:00 pm-10:55 pm

1 stop6h 55m

San Antonio

Sun 10/5

5:30 am-11:34 am

1 stop5h 04m

$264

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Wed 10/22

2:35 pm-11:15 pm

2 stops9h 40m

San Antonio

Fri 10/24

3:20 pm-10:45 pm

1 stop6h 25m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 23 results

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

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Reagan-National 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 Washington, D.C. Reagan-National Airport to San Antonio

Prices

Airlines

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to San Antonio, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $295). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $376). 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 DCA to SAT?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to San Antonio in the afternoon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the morning.

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

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

Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Reagan-National Airport to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 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

4,248 reviews

Southwest

8.0

Very good

4,248 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

8.0

Very good

7,960 reviews

Southwest

8.0

Very good

4,248 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

8,937 reviews

Southwest

8.0

Very good

4,248 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

10,000 reviews

Southwest

8.0

Very good

4,248 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

Frontier

5.8

Fair

3,177 reviews

Southwest

8.0

Very good

4,248 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 into for flights to San Antonio from Washington, D.C. Reagan-National?
Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Washington, D.C. Reagan-National. On average, San Antonio has 1 inbound flight from Washington, D.C. Reagan-National per day from 5 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.
How long is the flight from Washington, D.C. Reagan-National Airport to San Antonio?
Departing from Washington, D.C. Reagan-National Airport to San Antonio will take you 5h 45m. There are 1378 mi between Washington, D.C. Reagan-National Airport and San Antonio. This flight may include one or multiple stops.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to San Antonio round-trip?
Frontier, at $128, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to San Antonio.Alternate airlines to your destination round-trip include American Airlines and Southwest. Users have found that Frontier is 65% cheaper than the other options available to this destination.
What are the cheapest flights from Washington, D.C. Reagan-National Airport to San Antonio?
Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to San Antonio? While on average our users pay $321, our data indicates the cheapest price to be $95. The most popular route (Washington, D.C. Reagan-National - San Antonio), is priced around $174.
Can I find deals for flights from Reagan-National to San Antonio that include hotel bookings?
Yes. In addition to deals on Reagan-National to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to San Antonio.
Can I find deals for business class flights from Reagan-National to San Antonio?
Yes. Cheapflights offers flight deals from Reagan-National to San Antonio 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 Washington, D.C. Reagan-National Airport to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Antonio (average of $295). Flying from Washington, D.C. Reagan-National Airport to San Antonio in March is currently the most expensive (average of $376). 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

New Braunfels

Kerrville

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Reagan-National to San Antonio

Dulles Intl to Dallas/Fort Worth flights

Baltimore to Dallas/Fort Worth flights

Reagan-National to Dallas/Fort Worth flights

Reagan-National to Hobby flights

Baltimore to Hobby flights

Dulles Intl to Hobby flights

Reagan-National to George Bush Intcntl flights

Dulles Intl to George Bush Intcntl flights

Dulles Intl to Austin flights

Baltimore to George Bush Intcntl flights

Dulles Intl to Love Field flights

Baltimore to Austin flights

Reagan-National to Austin flights

Dulles Intl to San Antonio flights

Reagan-National to Love Field flights

Baltimore to Love Field flights

Baltimore to San Antonio flights

Dulles Intl to El Paso flights

Reagan-National to El Paso flights

Baltimore to El Paso flights

Dulles Intl to Amarillo flights

Baltimore to Corpus Christi flights

Reagan-National to Amarillo flights

Dulles Intl to Corpus Christi flights

Baltimore to Harlingen flights

Dulles Intl to McAllen flights

Dulles Intl to Harlingen flights

Baltimore to Laredo flights

Baltimore to Lubbock flights

Baltimore to Amarillo flights

Baltimore to Brownsville flights

Reagan-National to Corpus Christi flights

Reagan-National to McAllen flights

Dulles Intl to Lubbock flights

Baltimore to McAllen flights

Reagan-National to Harlingen flights

Reagan-National to Abilene flights

Reagan-National to Lubbock flights

Reagan-National to Brownsville flights

Dulles Intl to Abilene flights

Dulles Intl to Brownsville flights

Reagan-National to Waco flights

Dulles Intl to College Station flights

Dulles Intl to Waco flights

Dulles Intl to Midland flights

Reagan-National to Midland flights

Reagan-National to College Station flights

Baltimore to College Station flights

Baltimore to Abilene flights

Other flights from Reagan-National

Reagan-National to Orlando flights

Reagan-National to Denver flights

Reagan-National to Fort Lauderdale flights

Reagan-National to Omaha flights

Reagan-National to LaGuardia flights

Reagan-National to John F Kennedy Intl flights

Other flights to San Antonio

Top 5 airlines flying from Reagan-National to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$128	Average$209	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$222	Average$351	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$224	Average$439	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$249	Average$352	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$268	Average$427	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$76+ Cheap flights from Reagan-National (DCA) to San Antonio (SAT)

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to San Antonio 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 Washington, D.C. Reagan-National to San Antonio are usually found in February or August, booked 66 days in advance, depart on a Wednesday or Saturday and return on a Saturday

Cheap flight deals from Reagan-National to San Antonio

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Reagan-National to San Antonio

Cheapest flights from Reagan-National to San AntonioExplore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Reagan-National with our price prediction graph.

Cheapflights Insights

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

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

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

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

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

Weekly flight availability from Washington, D.C. Reagan-National Airport to San Antonio

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

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

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

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

Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Reagan-National Airport to San Antonio by reading reviews from past customers. 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 Reagan-National to San Antonio. 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 into for flights to San Antonio from Washington, D.C. Reagan-National?

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

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

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

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

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

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

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

Traveling to a place near San Antonio?

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 Reagan-National to San Antonio

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

Top 5 airlines flying from Reagan-National to San Antonio

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Reagan-National to San Antonio
Explore the most affordable flight options available from Reagan-National to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.