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Uncover the best deals on Washington to San Antonio flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest IAD - SAT Flights
Useful information for finding best airline tickets from Washington Dulles International to San Antonio International on your next trip.
Cheapest Round Trip Flight
$322
United Airlines
• 1 stop
• 29h 7m
Jul 01 – Jul 05
The cheapest round trip flight from Washington to San Antonio (IAD-SAT-IAD) is currently $322
Cheapest Direct Flight
$429
United Airlines
• nonstop
• 5h 37m
Jul 03
The cheapest nonstop flight from Washington to San Antonio (IAD-SAT) is currently $429
Fastest Flight
5h 30m
The fastest nonstop flight from Washington to San Antonio (IAD-SAT) takes 5h 30m
Top Airlines Flying from Washington to San Antonio
Latest Flight Deals from Washington (IAD) to San Antonio (SAT)
Compare and book low fare round-trip air tickets from Washington to San Antonio. Ideal for travelers with confirmed return itineraries.
Jul 01 - Jul 05, Economy
Washington → San Antonio
29h 7m
6:10 AM - 10:57 PM • 1 stop
Washington → San Antonio
5h 27m
7:00 AM - 11:27 AM • nonstop
United Airlines
Jul 01 - Jul 05, Economy
Washington → San Antonio
- • 1 stop
Washington → San Antonio
- • 1 stop
United Airlines
Jul 01 - Jul 05, Economy
Washington → San Antonio
10h 6m
8:29 AM - 1:35 PM • 1 stop
Washington → San Antonio
8h 37m
5:25 AM - 11:42 AM • 1 stop
Delta Airlines
Jul 02 - Jul 06, Economy
Washington → San Antonio
18h 36m
9:55 AM - 8:11 PM • 1 stop
Washington → San Antonio
15h 48m
9:32 PM - 8:20 AM • 1 stop
Frontier Airlines
Jul 02 - Jul 06, Economy
Washington → San Antonio
- • nonstop
Washington → San Antonio
- • 1 stop
United Airlines
Flying to San Antonio soon? We've surfaced some of the most affordable last-minute flights from Washington to San Antonio, ideal for urgent plans or spontaneous trips.
Jul 01 - Jul 05, Economy
Washington → San Antonio
29h 7m
6:10 AM - 10:57 PM • 1 stop
Washington → San Antonio
5h 27m
7:00 AM - 11:27 AM • nonstop
United Airlines
Jul 01 - Jul 05, Economy
Washington → San Antonio
- • 1 stop
Washington → San Antonio
- • 1 stop
United Airlines
Looking for the fastest way to San Antonio? These direct flight options from IAD to SAT offer both convenience and value—no layovers, just straight to your destination.
Jul 03 - Jul 29, Economy
Washington → San Antonio
5h 37m
5:45 PM - 8:22 PM • nonstop
Washington → San Antonio
5h 27m
12:01 PM - 4:28 PM • nonstop
United Airlines
Jul 03 - Jul 29, Economy
Washington → San Antonio
5h 30m
8:25 AM - 10:55 AM • nonstop
Washington → San Antonio
5h 27m
7:00 AM - 11:27 AM • nonstop
United Airlines
Jul 02 - Jul 06, Economy
Washington → San Antonio
5h 34m
8:25 AM - 10:59 AM • nonstop
Washington → San Antonio
5h 27m
12:01 PM - 4:28 PM • nonstop
United Airlines
Jul 02 - Jul 06, Economy
Washington → San Antonio
5h 37m
5:45 PM - 8:22 PM • nonstop
Washington → San Antonio
5h 27m
12:01 PM - 4:28 PM • nonstop
United Airlines
Jun 22 - Jun 28, Economy
Washington → San Antonio
5h 34m
8:25 AM - 10:59 AM • nonstop
Washington → San Antonio
5h 27m
7:00 AM - 11:27 AM • nonstop
United Airlines
FAQs on Washington to San Antonio Flights
What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from IAD to SAT?
The most popular airline flying from Washington to San Antonio are
Can I fly from IAD to SAT non-stop?
Yes, you can fly IAD to SAT non-stop on
Which airlines fly nonstop between Washington and San Antonio?
The non-stop flights between Washington and San Antonio are .
What’s the earliest departure time from IAD to SAT Airport?
The earliest flight leaves IAD at 6:10 am and lands in SAT - San Antonio International
What are the airports in San Antonio?
SAT
Can I make changes to my Washington to San Antonio flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from IAD to SAT?
Read the fare rules of the Washington to San Antonio air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and San Antonio?
operate flights between Washington and San Antonio
How long does a flight from Washington to San Antonio take?
It takes approximately 3 hour to fly non-stop from IAD to SAT, which is 1361.91 miles by air.
Which airlines provide the cheapest flights from Washington (IAD) to San Antonio (SAT) ?
In the past couple of days, the cheapest tickets to SAT from IAD were found on UA : USD 653
Do I need a passport to fly between IAD and SAT?
No
What’s the latest departure time from IAD to SAT ?
The last flight leaves IAD at 3:5600 pm
Washington (IAD) to San Antonio (SAT): Airport Information
| Origin Airport | Washington Dulles International , Washington, US |
| Destination Airport | San Antonio International , San Antonio, US |
| Distance | 1362 miles |
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