Check-in at IAD can be crowded in the afternoon and evening. Arrive early to navigate the busy check-in and security areas smoothly.
Round-trip from | $225 (FlightHub) |
---|---|
One-way from | $95 (United Airlines) |
Popular in | March |
Cheapest in | August |
Average price | $394 |
Good round-trip deal | $297 or less |
Good one-way deal | $173 or less |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 8/13
7:30 am-1:06 pm
1 stop30h 36m
San Antonio
Sat 8/16
3:06 pm-6:34 am
1 stop14h 28m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Tue 8/19
5:55 pm-8:33 pm
Nonstop3h 38m
San Antonio
Tue 8/26
12:00 pm-4:20 pm
Nonstop3h 20m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sat 8/23
9:00 am-1:51 pm
1 stop5h 51m
San Antonio
Sat 8/30
3:50 pm-11:26 pm
1 stop6h 36m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 9/3
2:25 pm-10:00 pm
1 stop8h 35m
San Antonio
Tue 9/9
6:15 am-1:40 pm
1 stop6h 25m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Thu 8/14
6:27 am-10:46 am
1 stop5h 19m
San Antonio
Tue 8/19
5:00 am-3:19 pm
2 stops9h 19m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sat 8/30
5:55 pm-8:33 pm
Nonstop3h 38m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Mon 10/6
6:10 am-4:30 pm
1 stop11h 20m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sat 8/30
7:00 am-4:20 pm
1 stop10h 20m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Wed 8/20
5:11 pm-11:34 pm
1 stop7h 23m
Washington, D.C.San Antonio
IAD - SAT
IADSAT
Washington, D.C. Dulles Intl
Sat 8/16
9:15 pm-4:48 pm
2 stops20h 33m
The best time to book flights from Washington, D.C. Dulles Intl Airport to San Antonio is 57 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Antonio (average of $295). Flying from Washington, D.C. Dulles Intl 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.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 31% on flights from Washington, D.C. Dulles Intl Airport to San Antonio by exploring options for tickets at noon.
Phoenix (PHX) – chosen by Cheapflights users on 50% 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 Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 2h 30m.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 21m.
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Gina,Jul 2025
LAS - DEN
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$196 | Average$288 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$218 | Average$318 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$242 | Average$332 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$250 | Average$426 | FlexibilityNo cancel fee | On-time69% |