$90 Cheap Flights from San Antonio (SAT) to Washington (DCA)

View $90 flight on Wed, May 28, 2025Opens in a new window

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

Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, May 28 - Sat, May 31
SAT
San Antonio
DCA
Washington
$179 Roundtrip, found 16 hours ago
$179
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Wed, May 28 from San Antonio to Washington, returning Sat, May 31, priced at $179 found 16 hours ago
American Airlines
Wed, Jul 2 - Fri, Jul 4
SAT
San Antonio
DCA
Washington
$189 Roundtrip, found 6 hours ago
$189
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Jul 2 from San Antonio to Washington, returning Fri, Jul 4, priced at $189 found 6 hours ago
Southwest Airlines
Wed, May 28 - Tue, Jul 1
SAT
San Antonio
DCA
Washington
$194 Roundtrip, found 6 days ago
$194
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, May 28 from San Antonio to Washington, returning Tue, Jul 1, priced at $194 found 6 days ago
Southwest Airlines
Tue, Jul 1 - Fri, Jul 4
SAT
San Antonio
DCA
Washington
$199 Roundtrip, found 6 hours ago
$199
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Tue, Jul 1 from San Antonio to Washington, returning Fri, Jul 4, priced at $199 found 6 hours ago
American Airlines
Wed, Jul 2 - Fri, Jul 4
SAT
San Antonio
DCA
Washington
$204 Roundtrip, found 6 hours ago
$204
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Jul 2 from San Antonio to Washington, returning Fri, Jul 4, priced at $204 found 6 hours ago
American Airlines
Wed, May 21 - Wed, May 28
SAT
San Antonio
DCA
Washington
$205 Roundtrip, found 4 hours ago
$205
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, May 21 from San Antonio to Washington, returning Wed, May 28, priced at $205 found 4 hours ago
Delta
Wed, May 28 - Sat, May 31
SAT
San Antonio
DCA
Washington
$210 Roundtrip, found 16 hours ago
$210
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, May 28 from San Antonio to Washington, returning Sat, May 31, priced at $210 found 16 hours ago
American Airlines
Wed, May 28 - Tue, Jul 1
SAT
San Antonio
DCA
Washington
$211 Roundtrip, found 6 days ago
$211
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, May 28 from San Antonio to Washington, returning Tue, Jul 1, priced at $211 found 6 days ago
United
Wed, May 28 - Sat, May 31
SAT
San Antonio
DCA
Washington
$217 Roundtrip, found 16 hours ago
$217
Roundtrip
found 16 hours ago
Select United flight, departing Wed, May 28 from San Antonio to Washington, returning Sat, May 31, priced at $217 found 16 hours ago
Frontier Airlines
Sun, May 18 - Thu, May 22
SAT
San Antonio
DCA
Washington
$380 Roundtrip, found 1 hour ago
$380
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sun, May 18 from San Antonio to Washington, returning Thu, May 22, priced at $380 found 1 hour ago

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) cost?
You can score cheap return tickets from San Antonio Intl. Airport (SAT) to Ronald Reagan Washington National Airport (DCA) starting from $179. Snag a seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving SAT on May 21 2025 and touching down at DCA. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from SAT to DCA?
The cheapest flights from SAT to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SAT to DCA?
With tickets starting at $116 for a one-way flight from SAT to DCA, American Airlines is currently the cheapest carrier operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SAT on May 20 2025. Prices were last updated on April 24 2025 and have not changed since.
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.
*Available to One Key members.