Flights from Washington DC to San Antonio

Trip type

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
05/16/26
1 Stopover (IAH)
UA1041, UA0468
08h 16min
Return
05/29/26
1 Stopover (IAH)
UA2157, UA1887
05h 30min
United Airlines ?
$259
Best option
Washington DC
San Antonio
Outbound
05/16/26
direct
UA1869
03h 45min
Return
05/29/26
1 Stopover (IAH)
UA2157, UA1887
05h 30min
United Airlines ?
$275
Washington DC
San Antonio
Outbound
05/16/26
2 Stopovers (ATL, LAS)
F94707, F93923, F93418
29h 35min
Return
05/29/26
3 Stopovers (MSP, BOS, EWR)
SY1836, SY0251, UA1647, UA1784
27h 27min
Frontier Airlines ?
$552
Washington DC
San Antonio
Outbound
05/16/26
1 Stopover (CLT)
AA5267, AA1258
06h 21min
Return
05/29/26
1 Stopover (CLT)
AA1119, AA5220
05h 16min
American Airlines ?
$599
Washington DC
San Antonio
Outbound
04/02/26
1 Stopover (SEA)
AS0351, AS0494
10h 54min
Return
04/10/26
1 Stopover (ATL)
F94810, F93692
05h 36min
Alaska Airlines ?
$707
Washington DC
San Antonio
Outbound
07/26/26
1 Stopover (SEA)
AS0409, AS0494
11h 56min
Return
08/05/26
1 Stopover (SEA)
AS0494, AS0367
12h 35min
Alaska Airlines ?
$780
Washington DC
San Antonio
Outbound
05/16/26
1 Stopover (MSP)
DL3996, DL2667
06h 45min
Return
05/29/26
1 Stopover (ATL)
DL1465, DL2549
05h 22min
Delta Air Lines ?
$1,269
Washington DC
San Antonio
Outbound
07/26/26
1 Stopover (DEN)
UA0599, UA0395
07h 17min
Return
08/05/26
1 Stopover (IAH)
UA0753, UA2366
05h 50min
United Airlines ?
$2,453
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 $258.30
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