$95+ 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 8/31. 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
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 August or February, booked 62 days in advance, depart on a Wednesday or Saturday and return on a Saturday
Cheap flight deals from Reagan-National to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.
Round-trip from | $230 (United Airlines) |
|---|---|
One-way from | $95 (American Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $358 |
Good round-trip deal | $239 or less |
Good one-way deal | $115 or less |
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 July 30, 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 July 30, 2025.
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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
Tue 8/26
6:25 am-12:01 pm
1 stop6h 36m
San Antonio
Sat 8/30
4:22 pm-11:59 pm
1 stop6h 37m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Wed 10/22
7:59 pm-10:53 pm
Nonstop3h 54m
San Antonio
Wed 10/29
6:35 am-10:49 am
Nonstop3h 14m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Sat 8/23
7:00 am-2:35 pm
1 stop8h 35m
San Antonio
Sat 8/30
3:34 pm-12:11 pm
1 stop19h 37m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Wed 8/20
6:20 pm-11:57 pm
1 stop6h 37m
San Antonio
Wed 8/27
5:10 am-11:34 am
1 stop5h 24m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Sat 10/11
6:00 am-11:05 am
1 stop6h 05m
San Antonio
Wed 10/15
6:15 am-2:00 pm
2 stops6h 45m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Sun 8/31
7:45 pm-10:16 pm
Nonstop3h 31m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Sat 8/30
4:10 pm-8:59 pm
1 stop5h 49m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Sat 10/18
7:00 am-3:14 pm
1 stop9h 14m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Tue 8/26
12:00 pm-6:15 pm
2 stops7h 15m
Washington, D.C.San Antonio
DCA - SAT
DCASAT
Washington, D.C. Reagan-National
Mon 9/1
6:00 am-10:37 am
1 stop5h 37m
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?
Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to San Antonio. Price data was last updated on July 25, 2025.
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 62 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?
Find hourly flight availability from Reagan-National 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 30, 2025.
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?
Use this chart to determine the cheapest time to fly round-trip from Reagan-National to San Antonio. Price data was last updated on December 16, 2024.
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.
What’s the top layover airport for flights from Washington, D.C. Reagan-National Airport to San Antonio?
Share of 1-stop round-trip flights from Washington, D.C. Reagan-National Airport to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.
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?
Average round-trip fare for 1-stop flights from Washington, D.C. Reagan-National Airport to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $205.
What’s the fastest layover option from Washington, D.C. Reagan-National Airport to San Antonio?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 6h 05m.
Which airport typically offers the quickest layover for flights from Washington, D.C. Reagan-National Airport to San Antonio?
Average layover duration for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 34m.
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated July 30, 2025.
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.
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Entertainment
Boarding
Overall
Food
Comfort
Crew
Reviews
Gina,Jul 2025
LAS - DEN
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.
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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
Discover the top 5 airlines that operate flights from Reagan-National to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$209 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$224 | Average$435 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$229 | Average$362 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$421 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$348 | FlexibilityNo cancel fee | On-timeN/A |