
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $249 (United Airlines) |
One-way from | $85 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $384 |
Good round-trip deal | $268 or less |
Good one-way deal | $243 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Thu 4/16
8:15 am-11:03 am
Nonstop3h 48m
San Antonio
Sat 4/25
7:15 am-11:36 am
Nonstop3h 21m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Thu 3/12
8:15 am-11:11 am
Nonstop3h 56m
San Antonio
Mon 3/16
7:30 am-11:44 am
Nonstop3h 14m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 4/15
5:55 pm-8:40 pm
Nonstop3h 45m
San Antonio
Sat 4/25
1:25 pm-11:34 pm
1 stop9h 09m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Thu 4/9
8:23 am-3:11 pm
1 stop7h 48m
San Antonio
Sun 4/12
7:15 am-11:36 am
Nonstop3h 21m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 4/15
5:55 pm-8:40 pm
Nonstop3h 45m
San Antonio
Wed 4/22
5:30 pm-12:15 am
1 stop5h 45m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sun 2/8
5:59 pm-12:39 am
1 stop7h 40m
San Antonio
Sat 2/14
5:25 am-11:50 am
1 stop5h 25m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Fri 3/6
6:00 am-12:39 pm
1 stop7h 39m
San Antonio
Thu 3/12
6:13 am-2:39 pm
1 stop7h 26m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 3/18
6:01 am-12:42 pm
1 stop7h 41m
San Antonio
Mon 3/23
4:25 pm-10:59 pm
1 stop5h 34m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 3/18
8:26 am-3:04 pm
1 stop7h 38m
San Antonio
Wed 4/1
4:17 pm-10:44 pm
1 stop5h 27m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sat 2/21
5:05 am-11:25 am
1 stop7h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
The best time to book flights from Washington, D.C. Dulles Intl Airport to San Antonio is 62 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Antonio (average of $94). Flying from Washington, D.C. Dulles Intl Airport to San Antonio in February is currently the most expensive (average of $249). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to San Antonio as you normally would.
Phoenix (PHX) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to San Antonio on Cheapflights.
Phoenix (PHX) is the most affordable 1-stop option, with an average round-trip price of $288.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 7h 45m.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 28m.
Overall
Boarding
Comfort
Food
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Comfort
Food
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Comfort
Food
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Boarding
Comfort
Food
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$181 | Average$288 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$236 | Average$292 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$389 | FlexibilityNo cancel fee | On-time69% |