CA $213 Cheap Flights from Washington (DCA) to San Antonio (SAT)

View CA $213 flight on Tue, Jun 9, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Washington (DCA) to San Antonio (SAT)

Prices were available within the past 7 days and start at CA $213 for one-way flights and CA $424 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jun 30 - Wed, Jul 8
DCA
Washington
SAT
San Antonio
CA $424 Roundtrip, found 2 days ago
CA $424
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 30 from Washington to San Antonio, returning Wed, Jul 8, priced at CA $424 found 2 days ago
Delta
Sat, Jul 4 - Wed, Jul 8
DCA
Washington
SAT
San Antonio
CA $438 Roundtrip, found 2 days ago
CA $438
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jul 4 from Washington to San Antonio, returning Wed, Jul 8, priced at CA $438 found 2 days ago
American Airlines
Fri, Jun 12 - Sat, Jun 13
DCA
Washington
SAT
San Antonio
CA $438 Roundtrip, found 1 day ago
CA $438
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jun 12 from Washington to San Antonio, returning Sat, Jun 13, priced at CA $438 found 1 day ago
American Airlines
Fri, Jun 12 - Sat, Jun 13
DCA
Washington
SAT
San Antonio
CA $451 Roundtrip, found 1 day ago
CA $451
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jun 12 from Washington to San Antonio, returning Sat, Jun 13, priced at CA $451 found 1 day ago
Delta
Wed, Jul 1 - Wed, Jul 8
DCA
Washington
SAT
San Antonio
CA $486 Roundtrip, found 2 days ago
CA $486
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jul 1 from Washington to San Antonio, returning Wed, Jul 8, priced at CA $486 found 2 days ago
American Airlines
Fri, Jul 3 - Sun, Jul 5
DCA
Washington
SAT
San Antonio
CA $499 Roundtrip, found 2 days ago
CA $499
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jul 3 from Washington to San Antonio, returning Sun, Jul 5, priced at CA $499 found 2 days ago
American Airlines
Fri, Jun 12 - Sat, Jun 13
DCA
Washington
SAT
San Antonio
CA $506 Roundtrip, found 1 day ago
CA $506
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jun 12 from Washington to San Antonio, returning Sat, Jun 13, priced at CA $506 found 1 day ago
American Airlines
Fri, Jul 3 - Sun, Jul 5
DCA
Washington
SAT
San Antonio
CA $512 Roundtrip, found 2 days ago
CA $512
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jul 3 from Washington to San Antonio, returning Sun, Jul 5, priced at CA $512 found 2 days ago
United
Wed, Jul 1 - Mon, Jul 6
DCA
Washington
SAT
San Antonio
CA $561 Roundtrip, found 2 days ago
CA $561
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 1 from Washington to San Antonio, returning Mon, Jul 6, priced at CA $561 found 2 days ago
Alaska Airlines
Mon, Jun 1 - Sat, Jun 6
DCA
Washington
SAT
San Antonio
CA $1,594 Roundtrip, found 4 days ago
CA $1,594
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Jun 1 from Washington to San Antonio, returning Sat, Jun 6, priced at CA $1,594 found 4 days ago

Frequently asked questions

What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
January is typically the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.), with average round-trip fares of approximately 798 CAD. This is about 14% lower than the average price throughout the year. January often sees lower prices because it falls after the busy holiday travel season, when demand for flights tends to decrease. Other cheap months to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) include August and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
Enter DCA to SAT and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
The best airline to fly with from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) will differ from traveler to traveler. If you like to fly early, AA offers early morning flights. If price is the most important factor, AA typically offers the lowest fares. AA offers the most daily flights from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
Based on booking data from the past year, the cheapest months to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) are typically January and September, with average round-trip flights around 798 CAD. While May is a popular month for travel, offering plenty of flight options, it's not one of the cheapest. If you're looking for the best value, aiming for January or September will help you find lower fares.*Prices based on flights available on Expedia in the last year.
How many flights per day from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
There are approximately 109 connecting flights per day from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.). Some common connection points include Dallas-Fort Worth Intl. (DFW), Hartsfield-Jackson Atlanta Intl. (ATL), and O'Hare Intl. (ORD).
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
The earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is a seasonal offering, active in April, May, and June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
For flights from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.), you'll typically find the most options on a Friday, with around 76 flights available. This gives you plenty of choices for your travel plans. Major airlines on this route include American Airlines, Southwest Airlines, and Delta Air Lines. Friday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
The most popular departure times for flights from Ronald Reagan Washington National (DCA) to San Antonio Intl. (SAT) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including American Airlines, Southwest Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day, arriving in San Antonio with plenty of time.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
A nonstop flight from DCA to SAT typically takes around 3 hours 50 minutes, covering approximately 1,379 miles. Connecting flights on this route usually add 2 hours 10 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
Select the "Business class" and "First class" filters when looking for DCA to SAT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Antonio from Ronald Reagan Washington National (DCA)?
If you're planning to travel to San Antonio from Ronald Reagan Washington National (DCA), you can fly into San Antonio Intl. (SAT) Some flights may connect through major hubs like Portland Intl. (PDX), Los Angeles Intl. (LAX), San Francisco Intl. (SFO) before reaching San Antonio. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to San Antonio, TX (SAT-San Antonio Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
San Antonio Intl.
Roundtrip price
CA $423
Distance
2206 km
Average flight time
4 hours 58 mins

Book with confidence

Washington to San Antonio Flights

The easy way to book your flights from Washington to San Antonio 

With Expedia, it’s simple to find and book flights to San Antonio from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to San Antonio Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to San Antonio today, tomorrow, or this week.  

 

Save dollars with cheap flights from Ronald Reagan Washington National, DCA to San Antonio Intl., SAT 

Sort your search results by price to find great deals on your flight from Washington to San Antonio—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Antonio from Washington currently is just CA $424 rising to CA $1,594.  

Here are more money-saving tips: 

  • Fly in June when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to San Antonio  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to San Antonio from Washington 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Antonio with Expedia today.

Washington to San Antonio Flights

Explore a world of travel with Expedia

*Available to Expedia members.