Cheap Flight Tickets from Washington (IAD) to San Antonio (SAT), Starting at $342

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

$434

DL Delta Airlines • 1 stop • 8h 53m

Aug 02 – Aug 09

The cheapest round trip flight from Washington to San Antonio (IAD-SAT-IAD) is currently $434

🔍 Search Flights

Cheapest Direct Flight

$342

UA United Airlines • nonstop • 5h 34m

Aug 13

The cheapest nonstop flight from Washington to San Antonio (IAD-SAT) is currently $342

🔍 Search Flights

Fastest Flight

5h 34m

The fastest nonstop flight from Washington to San Antonio (IAD-SAT) takes 5h 34m

Top Airlines Flying from Washington to San Antonio

Delta Airline, DL

Delta Airlines

American Airlines, AA

American Airlines

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.

Aug 02 - Aug 09, Economy
DL
Washington → San Antonio
8h 53m
5:46 PM - 10:19 PM • 1 stop
DL
Washington → San Antonio
9h 9m
5:45 PM - 12:34 AM • 1 stop
$434
Delta Airlines
Aug 02 - Aug 09, Economy
DL
Washington → San Antonio
13h 58m
6:00 AM - 1:38 PM • 1 stop
DL
Washington → San Antonio
8h 33m
5:20 AM - 11:33 AM • 1 stop
$653
Delta Airlines
Aug 02 - Aug 09, Economy
DL
Washington → San Antonio
12h 14m
5:46 PM - 12:20 AM • 1 stop
DL
Washington → San Antonio
12h 24m
5:20 AM - 2:04 PM • 1 stop
$682
Delta Airlines
Aug 02 - Aug 09, Economy
DL
Washington → San Antonio
12h 19m
3:40 PM - 10:19 PM • 1 stop
DL
Washington → San Antonio
8h 33m
5:20 AM - 11:33 AM • 1 stop
$708
Delta Airlines
Aug 02 - Aug 09, Economy
DL
Washington → San Antonio
10h 11m
8:27 AM - 1:38 PM • 1 stop
DL
Washington → San Antonio
8h 33m
5:20 AM - 11:33 AM • 1 stop
$708
Delta Airlines
Aug 02 - Aug 02, Economy
DL
Washington → San Antonio
9h 9m
10:21 AM - 3:10 PM • 1 stop
DL
Washington → San Antonio
8h 45m
6:16 PM - 12:41 AM • 1 stop
$1193
Delta Airlines

Fly from Washington to San Antonio with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Washington to San Antonio? Find the biggest savings on one-way and round-trip tickets right here.

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 6:00 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 DL : USD 1193
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 6:00 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

More Flight Options for Washington (IAD) and San Antonio (SAT)

Why Fareleaders for IAD to SAT Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Washington to San Antonio flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on IAD to SAT flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Washington to San Antonio flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Washington (IAD) to San Antonio (SAT)
Terms and Conditions*