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

According to our current data, Frontier ($103), Southwest ($155), and Spirit Airlines ($164) offers the cheapest pricing from Washington, D.C. to San Antonio. You may be able to fly from Washington, D.C. to San Antonio for 72% less than the average price by searching for these airlines.

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

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $50. Spirit Airlines flights start at $73 while deals on Southwest start at $78 one-way.

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 most popular routes from Washington, D.C. to San Antonio?

The most popular flight routes from Washington, D.C. to San Antonio are Washington, D.C. Dulles Intl - San Antonio, Baltimore/Washington - San Antonio and Washington, D.C. Reagan-National - San Antonio.

What are the cheapest flights from Washington, D.C. to San Antonio?

Looking at all options, your cheapest flight can be booked for $134. While the most popular route (Washington, D.C. Dulles Intl - San Antonio) can be booked for $249 on average our data indicates $347 when flying from Washington, D.C. to San Antonio.

What are the most reliable airlines from Washington, D.C. to San Antonio?

The top 3 most reliable airlines when flying from Washington, D.C. to San Antonio are United Airlines (75%), Air Canada (74%) and Mesa Airlines (72%).

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

Before booking your flight from Washington, D.C. to San Antonio check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

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

Tuesday is generally a great day to depart. Flying on this day could help you save up to 32%.

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

Travelers have found it’s best to book a flight 52 days in advance to save up to 83% 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 Washington, D.C. to San Antonio 1-2 weeks in advance for as low as $374, or $502 for flights within the next 24 hours.

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

Flights from Washington, D.C. to San Antonio lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. to San Antonio in July, with the cheapest ticket starting at $193.

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

If you book a flight to San Antonio from Washington, D.C., you will be flying to San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 7 flights from Washington, D.C. to San Antonio per day from 6 different airlines.

Can I find deals for flights from Washington, D.C. to San Antonio that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to San Antonio?

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

Can I find deals for business class flights from Washington, D.C. to San Antonio?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$50+ Flights from Washington, D.C. to San Antonio

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Cheapflights Tip: The best prices from Washington, D.C. to San Antonio are usually found in July or May, booked 89 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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

Round-trip from	$103 (Priceline)
One-way from	$50 (Priceline)
Popular in	December
Cheapest in	July
Average price	$331
Good round-trip deal	$218 or less
Good one-way deal	$107 or less

From Washington, D.C. (WAS) to San Antonio

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One-way flight from Washington, D.C. (WAS) to San Antonio

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Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).

Search Deals

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

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Average for round-trip flights in July 2025

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

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

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

Cheapest flights from Washington, D.C. to San Antonio
Explore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Fri 8/17:20 amBWI - SAT

1 stop10h 32mFrontier

Mon 8/45:38 pmSAT - BWI

1 stop5h 47mFrontier

Deal found 7/2

$118

Mon 8/117:30 pmBWI - SAT

Nonstop3h 35mSouthwest

Mon 8/185:10 amSAT - BWI

Nonstop3h 20mSouthwest

Deal found 7/2

$155

Thu 7/249:39 amBWI - SAT

1 stop7h 54mMultiple Airlines

Mon 7/285:38 pmSAT - BWI

1 stop22h 11mMultiple Airlines

Deal found 7/1

$160

Thu 7/319:39 amBWI - SAT

1 stop7h 54mSpirit Airlines

Tue 8/52:11 pmSAT - BWI

1 stop14h 22mSpirit Airlines

Deal found 7/3

$164

Fri 7/255:00 amBWI - SAT

1 stop5h 01mAmerican Airlines

Mon 7/282:13 pmSAT - BWI

1 stop5h 41mAmerican Airlines

Deal found 7/2

$187

Thu 8/287:45 pmDCA - SAT

Nonstop3h 31mAmerican Airlines

Sun 8/316:30 amSAT - DCA

Nonstop3h 22mAmerican Airlines

Deal found 7/1

$223

Sat 8/236:55 amDCA - SAT

1 stop6h 55mSouthwest

Sun 8/3110:10 amSAT - DCA

1 stop5h 00mSouthwest

Deal found 7/1

$225

Sat 8/238:35 amIAD - SAT

1 stop5h 47mUnited Airlines

Sun 8/318:55 amSAT - IAD

1 stop6h 48mUnited Airlines

Deal found 7/1

$225

Sat 8/2311:00 amDCA - SAT

1 stop5h 26mUnited Airlines

Sun 8/315:30 amSAT - DCA

1 stop5h 06mUnited Airlines

Deal found 7/1

$230

Thu 8/711:58 amIAD - SAT

1 stop5h 35mMultiple Airlines

Sun 8/107:10 amSAT - IAD

2 stops25h 13mMultiple Airlines

Deal found 7/2

$230

Fri 8/16:10 amIAD - SAT

1 stop11h 42mFrontier

Mon 8/45:38 pmSAT - IAD

1 stop5h 34mFrontier

Deal found 7/2

$237

Sat 8/237:00 amIAD - SAT

1 stop13h 50mSouthwest

Sun 8/317:35 amSAT - IAD

1 stop12h 50mSouthwest

Deal found 7/1

$241

Best flights from Washington, D.C. to San Antonio
Discover carefully curated flight deals from Washington, D.C. to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Mon 8/117:15 amBWI - SAT

1 stop10h 37mFrontier

Fri 8/155:38 pmSAT - BWI

1 stop5h 47mFrontier

Deal found 7/3

$103

Mon 8/117:30 pmBWI - SAT

Nonstop3h 35mSouthwest

Mon 8/185:10 amSAT - BWI

Nonstop3h 20mSouthwest

Deal found 7/2

$155

Thu 7/249:39 amBWI - SAT

1 stop7h 54mMultiple Airlines

Mon 7/285:38 pmSAT - BWI

1 stop22h 11mMultiple Airlines

Deal found 7/1

$160

Thu 7/319:39 amBWI - SAT

1 stop7h 54mSpirit Airlines

Tue 8/52:11 pmSAT - BWI

1 stop14h 22mSpirit Airlines

Deal found 7/3

$164

Fri 7/255:00 amBWI - SAT

1 stop5h 01mAmerican Airlines

Mon 7/282:13 pmSAT - BWI

1 stop5h 41mAmerican Airlines

Deal found 7/2

$187

Sat 8/238:35 amIAD - SAT

1 stop5h 47mUnited Airlines

Sun 8/318:55 amSAT - IAD

1 stop6h 48mUnited Airlines

Deal found 7/1

$225

Tue 8/56:00 amIAD - SAT

1 stop5h 30mDelta

Sun 8/315:10 amSAT - IAD

1 stop5h 22mDelta

Deal found 7/3

$244

Thu 8/287:45 pmDCA - SAT

Nonstop3h 31mAmerican Airlines

Sun 8/316:30 amSAT - DCA

Nonstop3h 22mAmerican Airlines

Deal found 7/1

$223

Sat 8/236:55 amDCA - SAT

1 stop6h 55mSouthwest

Sun 8/3110:10 amSAT - DCA

1 stop5h 00mSouthwest

Deal found 7/1

$225

Sat 8/2311:00 amDCA - SAT

1 stop5h 26mUnited Airlines

Sun 8/315:30 amSAT - DCA

1 stop5h 06mUnited Airlines

Deal found 7/1

$230

Thu 8/711:58 amIAD - SAT

1 stop5h 35mMultiple Airlines

Sun 8/107:10 amSAT - IAD

2 stops25h 13mMultiple Airlines

Deal found 7/2

$230

Fri 8/16:10 amIAD - SAT

1 stop11h 42mFrontier

Mon 8/45:38 pmSAT - IAD

1 stop5h 34mFrontier

Deal found 7/2

$237

Last-minute flights from Washington, D.C. to San Antonio
Discover last-minute flight deals from Washington, D.C. to San Antonio. Data last updated July 3, 2025 and is based on user searches.

Tue 7/87:00 amDCA - SAT

1 stop12h 02mFrontier

Tue 7/156:59 pmSAT - DCA

1 stop21h 00mFrontier

Deal found 7/1

$300

Tue 7/87:59 pmDCA - SAT

Nonstop3h 39mAmerican Airlines

Sat 7/196:30 amSAT - DCA

Nonstop3h 23mAmerican Airlines

Deal found 7/1

$334

Tue 7/85:55 pmIAD - SAT

Nonstop3h 32mUnited Airlines

Tue 7/157:00 amSAT - IAD

Nonstop3h 24mUnited Airlines

Deal found 7/1

$334

Tue 7/85:20 pmIAD - SAT

1 stop7h 54mDelta

Tue 7/1510:40 amSAT - IAD

1 stop4h 45mDelta

Deal found 7/1

$354

Tue 7/86:05 amDCA - SAT

1 stop5h 25mDelta

Fri 7/114:27 pmSAT - DCA

1 stop5h 15mDelta

Deal found 7/2

$399

Thu 7/1011:58 amIAD - SAT

1 stop5h 35mMultiple Airlines

Sat 7/197:10 amSAT - IAD

2 stops26h 58mMultiple Airlines

Deal found 7/2

$377

Fri 7/117:20 amBWI - SAT

1 stop10h 32mFrontier

Mon 7/145:38 pmSAT - BWI

1 stop5h 47mFrontier

Deal found 7/1

$215

Fri 7/116:10 amIAD - SAT

1 stop11h 42mFrontier

Mon 7/145:38 pmSAT - IAD

1 stop5h 34mFrontier

Deal found 7/3

$245

Fri 7/111:20 pmBWI - SAT

1 stop10h 22mMultiple Airlines

Mon 7/145:38 pmSAT - BWI

1 stop5h 47mMultiple Airlines

Deal found 7/1

$265

Fri 7/115:15 amIAD - SAT

2 stops15h 15mSouthwest

Mon 7/1411:45 amSAT - IAD

1 stop6h 20mSouthwest

Deal found 7/3

$410

Sat 7/121:25 pmBWI - SAT

1 stop12h 09mSpirit Airlines

Wed 7/167:45 amSAT - BWI

1 stop8h 47mSpirit Airlines

Deal found 7/2

$278

Sun 7/136:55 amDCA - SAT

1 stop5h 45mSouthwest

Wed 7/161:25 pmSAT - DCA

2 stops7h 30mSouthwest

Deal found 7/1

$404

One-way flights from Washington, D.C. to San Antonio
Search for one-way flight options from Washington, D.C. to San Antonio. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 7/2810:34 amBWI - SAT

1 stop7h 18mFrontier

Deal found 7/1

$50

Thu 7/319:39 amBWI - SAT

1 stop7h 54mSpirit Airlines

Deal found 7/1

$73

Fri 8/158:20 amBWI - SAT

Nonstop3h 35mSouthwest

Deal found 7/2

$78

Thu 8/711:58 amIAD - SAT

1 stop5h 35mMultiple Airlines

Deal found 7/2

$92

Fri 8/295:38 pmBWI - SAT

1 stop5h 22mAmerican Airlines

Deal found 7/2

$95

Sun 8/317:45 pmDCA - SAT

Nonstop3h 31mAmerican Airlines

Deal found 7/2

$95

Sun 8/315:55 pmIAD - SAT

Nonstop3h 38mUnited Airlines

Deal found 7/3

$95

Thu 9/46:10 amIAD - SAT

1 stop5h 38mFrontier

Deal found 7/1

$97

Sat 8/237:00 amDCA - SAT

1 stop8h 35mFrontier

Deal found 7/2

$110

Fri 8/17:52 pmBWI - SAT

1 stop5h 22mDelta

Deal found 7/1

$119

Sun 8/318:59 amDCA - SAT

1 stop8h 08mDelta

Deal found 7/1

$119

Sun 8/319:00 amIAD - SAT

1 stop8h 07mDelta

Deal found 7/1

$119

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 8/1

7:20 am-4:52 pm

1 stop10h 32m

San Antonio

Mon 8/4

5:38 pm-12:25 am

1 stop5h 47m

$118

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Mon 8/11

7:30 pm-10:05 pm

Nonstop3h 35m

San Antonio

Mon 8/18

5:10 am-9:30 am

Nonstop3h 20m

$155

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 7/24

9:39 am-4:33 pm

1 stop7h 54m

San Antonio

Mon 7/28

5:38 pm-4:49 pm

1 stop22h 11m

$160

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Thu 7/31

9:39 am-4:33 pm

1 stop7h 54m

San Antonio

Tue 8/5

2:11 pm-5:33 am

1 stop14h 22m

$164

BaltimoreSan Antonio

BWI - SAT

BWISAT

Baltimore/Washington

Fri 7/25

5:00 am-9:01 am

1 stop5h 01m

San Antonio

Mon 7/28

2:13 pm-8:54 pm

1 stop5h 41m

$187

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Thu 8/28

7:45 pm-10:16 pm

Nonstop3h 31m

San Antonio

Sun 8/31

6:30 am-10:52 am

Nonstop3h 22m

$223

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Sat 8/23

8:35 am-1:22 pm

1 stop5h 47m

San Antonio

Sun 8/31

8:55 am-4:43 pm

1 stop6h 48m

$225

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 8/23

6:55 am-12:50 pm

1 stop6h 55m

San Antonio

Sun 8/31

10:10 am-4:10 pm

1 stop5h 00m

$225

Washington, D.C.San Antonio

DCA - SAT

DCASAT

Washington, D.C. Reagan-National

Sat 8/23

11:00 am-3:26 pm

1 stop5h 26m

San Antonio

Sun 8/31

5:30 am-11:36 am

1 stop5h 06m

$230

Washington, D.C.San Antonio

IAD - SAT

IADSAT

Washington, D.C. Dulles Intl

Thu 8/7

11:58 am-4:33 pm

1 stop5h 35m

San Antonio

Sun 8/10

7:10 am-9:23 am

2 stops25h 13m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 33 results

The best insider tips for Washington, D.C. to San Antonio flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to San Antonio trip

Airports

IAD

Security queues at IAD can be long. Pay attention to signage for the correct train to your concourse to save time.

SAT

For quick downtown access from SAT, rideshare services are convenient and pick up on Terminal A's lower level.

Our travel experts

Ramsey Qubein

Expert on SAT and IAD

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

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

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

The price you pay for your flight from Washington, D.C. to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to San Antonio (average of $295). Flying from Washington, D.C. 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 WAS to SAT?

It’s typically best to fly out from Washington, D.C. to San Antonio in the evening. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

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

The most flights from WAS to SAT are scheduled on a Thursday (11 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Washington, D.C. to San Antonio?

Reviews of airlines servicing San Antonio

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Washington, D.C. to San Antonio. 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

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,266 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,982 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,861 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly into for flights to San Antonio from Washington, D.C.?
If you book a flight to San Antonio from Washington, D.C., you will be flying to San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio. There are 7 flights from Washington, D.C. to San Antonio per day from 6 different airlines.
What are the cheapest airlines flying from Washington, D.C. to San Antonio round-trip?
According to our current data, Frontier ($103), Southwest ($155), and Spirit Airlines ($164) offers the cheapest pricing from Washington, D.C. to San Antonio. You may be able to fly from Washington, D.C. to San Antonio for 72% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. to San Antonio one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $50. Spirit Airlines flights start at $73 while deals on Southwest start at $78 one-way.
What are the most popular routes from Washington, D.C. to San Antonio?
The most popular flight routes from Washington, D.C. to San Antonio are Washington, D.C. Dulles Intl - San Antonio, Baltimore/Washington - San Antonio and Washington, D.C. Reagan-National - San Antonio.
What are the most reliable airlines from Washington, D.C. to San Antonio?
The top 3 most reliable airlines when flying from Washington, D.C. to San Antonio are United Airlines (75%), Air Canada (74%) and Mesa Airlines (72%).
What are the cheapest flights from Washington, D.C. to San Antonio?
Looking at all options, your cheapest flight can be booked for $134. While the most popular route (Washington, D.C. Dulles Intl - San Antonio) can be booked for $249 on average our data indicates $347 when flying from Washington, D.C. to San Antonio.
Can I find deals for flights from Washington, D.C. to San Antonio that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to San Antonio.
Can I find deals for business class flights from Washington, D.C. to San Antonio?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to San Antonio (average of $295). Flying from Washington, D.C. 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

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Alternative routes for Washington, D.C. to San Antonio

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Other flights to San Antonio

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

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$121	Average$221	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$128	Average$209	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$166	Average$344	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$196	Average$426	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$238	Average$369	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$248	Average$403	FlexibilityNo cancel fee	On-time69%

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$50+ Cheap flights from Washington, D.C. (WAS) 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 7/28. 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 Washington, D.C. to San Antonio are usually found in July or May, booked 89 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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Cheapest flights from Washington, D.C. to San AntonioExplore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

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The best insider tips for Washington, D.C. to San Antonio flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to San Antonio trip

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

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Washington, D.C. with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to San Antonio. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from Washington, D.C. to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to San Antonio. Price data was last updated on June 29, 2025.

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

How much does it cost to fly round-trip from Washington, D.C. to San Antonio?

Reviews of airlines servicing San Antonio

Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Washington, D.C. to San Antonio. 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.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

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

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

What are the most popular routes from Washington, D.C. to San Antonio?

What are the most reliable airlines from Washington, D.C. to San Antonio?

What are the cheapest flights from Washington, D.C. to San Antonio?

Can I find deals for flights from Washington, D.C. to San Antonio that include hotel bookings?

How can I find direct flights from Washington, D.C. to San Antonio?

Can I find deals for business class flights from Washington, D.C. to San Antonio?

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

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Alternative routes for Washington, D.C. to San Antonio

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

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Cheapest flights from Washington, D.C. to San Antonio
Explore the most affordable flight options available from Washington, D.C. to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.