$70 Cheap Flights from San Antonio (SAT) to Washington (DCA)

View $70 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Ronald Reagan Washington National Airport (DCA)

Cheap Flights from San Antonio to Washington (SAT-DCA)

Prices were available within the past 7 days and start at $70 for one-way flights and $140 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Nov 20 - Sat, Dec 6
SAT
San Antonio
DCA
Washington
$140 Roundtrip, found 7 hours ago
$140
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Washington, returning Sat, Dec 6, priced at $140 found 7 hours ago
Frontier Airlines
Thu, Nov 20 - Thu, Dec 4
SAT
San Antonio
DCA
Washington
$160 Roundtrip, found 7 hours ago
$160
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Washington, returning Thu, Dec 4, priced at $160 found 7 hours ago
Frontier Airlines
Sun, Dec 7 - Thu, Dec 11
SAT
San Antonio
DCA
Washington
$162 Roundtrip, found 5 hours ago
$162
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, Dec 7 from San Antonio to Washington, returning Thu, Dec 11, priced at $162 found 5 hours ago
Frontier Airlines
Thu, Nov 20 - Fri, Dec 5
SAT
San Antonio
DCA
Washington
$172 Roundtrip, found 7 hours ago
$172
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Washington, returning Fri, Dec 5, priced at $172 found 7 hours ago
Frontier Airlines
Thu, Nov 20 - Wed, Dec 3
SAT
San Antonio
DCA
Washington
$180 Roundtrip, found 1 day ago
$180
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Antonio to Washington, returning Wed, Dec 3, priced at $180 found 1 day ago
Frontier Airlines
Sun, Dec 7 - Thu, Dec 11
SAT
San Antonio
DCA
Washington
$182 Roundtrip, found 5 hours ago
$182
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sun, Dec 7 from San Antonio to Washington, returning Thu, Dec 11, priced at $182 found 5 hours ago
Southwest Airlines
Thu, Jan 29 - Tue, Feb 3
SAT
San Antonio
DCA
Washington
$216 Roundtrip, found 5 days ago
$216
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Thu, Jan 29 from San Antonio to Washington, returning Tue, Feb 3, priced at $216 found 5 days ago
United
Mon, Dec 8 - Wed, Dec 10
SAT
San Antonio
DCA
Washington
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 8 from San Antonio to Washington, returning Wed, Dec 10, priced at $218 found 1 day ago
American Airlines
Mon, Dec 8 - Wed, Dec 10
SAT
San Antonio
DCA
Washington
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Dec 8 from San Antonio to Washington, returning Wed, Dec 10, priced at $230 found 1 day ago
Delta
Wed, Apr 8 - Tue, Apr 14
SAT
San Antonio
DCA
Washington
$269 Roundtrip, just found
$269
Roundtrip
just found
Select Delta flight, departing Wed, Apr 8 from San Antonio to Washington, returning Tue, Apr 14, priced at $269 just found

Find the cheapest month to fly from San Antonio (SAT) to Washington (DCA)

February is typically the cheapest month to fly

From $140 - $400 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 40 minutes. Flights from $263
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center40 min
Flights from $263
Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $262
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $262

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) cost?
Secure a cheap one-way flight from $70 or cheap return flight from $140 from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA)?
November is the most affordable month to fly from SAT to DCA. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from SAT to DCA. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA)?
Direct flights from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to DCA?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA)?
Book a flight from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from San Antonio Intl. Airport (SAT)?
If you're leaving on a direct flight from San Antonio Intl. Airport (SAT) to Washington, you can arrive at either Washington Dulles Intl. Airport (IAD) or Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) last-minute?
Last-minute fares from SAT to DCA are generally more expensive. To lock in the lowest prices, start searching for flights as soon as possible. That being said, if your travel plans are flexible, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a SAT to DCA flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAT to DCA flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Just secure your flights and choose from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA)?
It's usually possible to cancel or reschedule your SAT to DCA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$140
Distance
1378 mi
Average flight time
5 hours 50 mins

Book with confidence

San Antonio to Washington Flights

The cheapest times to fly from San Antonio to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Antonio to Washington are during the month of November. You can find some of the cheapest flights from San Antonio to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Washington

Sunday is one of the best days to book for cheap flights from San Antonio to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Antonio to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Antonio to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Antonio to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Antonio to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Antonio to Washington Flights

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*Available to One Key members.