Flights from Washington DC to San Antonio

Our cheapest offers for flights from Washington DC to San Antonio

Here you can compare cheap flights from Washington DC (IAD) to San Antonio (SAT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Antonio. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Washington DC
San Antonio
Outbound
11/09/25
1 Stopover (ATL)
F91081, F94809
24h 11min
Return
12/07/25
2 Stopovers (DEN, ATL)
F92355, F93600, F94708
25h 36min
Frontier Airlines ?
$263
Best option
Washington DC
San Antonio
Outbound
11/09/25
direct
UA1789
03h 51min
Return
12/07/25
direct
UA0471
03h 11min
United Airlines ?
$358
Washington DC
San Antonio
Pay attention to transfer at connecting flight
Outbound
11/09/25
3 Stopovers (LNS, PIT, FLL)
9X0248, 9X0157, NK1450, NK3163
22h 31min
Return
12/07/25
3 Stopovers (MCO, PIT, LNS)
NK1515, NK3440, 9X0152, 9X0245
28h 23min
Southern Airways Express, Spirit Airlines
$434
Washington DC
San Antonio
Outbound
11/09/25
1 Stopover (ATL)
DL1687, DL1508
06h 12min
Return
12/07/25
1 Stopover (ATL)
DL1465, DL2549
04h 53min
Delta Air Lines ?
$294
Washington DC
San Antonio
Outbound
10/12/25
1 Stopover (CLT)
AA5316, AA3196
05h 15min
Return
10/21/25
1 Stopover (DFW)
AA1353, AA1863
05h 34min
American Airlines ?
$392
Washington DC
San Antonio
Outbound
10/12/25
direct
UA1789
03h 33min
Return
10/21/25
direct
UA2250
03h 21min
United Airlines
$418
Washington DC
San Antonio
Outbound
10/12/25
1 Stopover (DFW)
AA2617, AA0413
06h 21min
Return
10/21/25
1 Stopover (CLT)
AA3297, AA5543
04h 57min
American Airlines ?
$563
Washington DC
San Antonio
Outbound
10/12/25
1 Stopover (SEA)
AS0351, AS0494
18h 39min
Return
10/21/25
1 Stopover (SEA)
AS0404, AS0348
27h 27min
Alaska Airlines ?
$573
Washington DC
San Antonio
Outbound
10/12/25
1 Stopover (SEA)
AS0351, AS0449
13h 31min
Return
10/21/25
1 Stopover (SEA)
AS0495, AS0406
10h 48min
Alaska Airlines ?
$646
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Washington DC to San Antonio

Favorite airline: United Airlines
The favorite airline for flights from Washington DC to San Antonio is United Airlines.
United Airlines
73 %
Delta
18 %
American Airlines
5 %
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are $32.00 more expensive on this route.
non stop flight
1 stop
03h 28min
05h 23min
$272
$240
The favorite connection is non-stop
Flights from Washington DC to San Antonio are most often booked as a direct flight.
Route
bookings
Direct flights
03h 28min, from $272
78 %
1 stopover Hartsfield-Jackson Atlanta International Airport, GA
05h 23min, from $240
17 %
1 stopover Salt Lake City International Airport, UT
10h 55min, from $293
6 %

Important flight information

Flight information: Washington DC - San Antonio

Roundtrip from $262.25
Flight duration min. 03:42 / max. 03:55
Return flight duration min. 03:01/ max. 03:09
Distance 2192 km
Flights per week 16
Departure airport Airport Washington DC - Dulles International Airport, DC (IAD)
Arrival airport Airport San Antonio International Airport, TX (SAT)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Antonio
Flight destinations with a similar price
Flight destinations with a similar price