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 (WAS) 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
Best option
Washington-DC
San Antonio
Outbound
11/24/25
direct
AA1947
03h 48min
Return
12/12/25
direct
AA1718
03h 15min
American Airlines ?
$254
Washington-DC
San Antonio
Outbound
02/13/26
1 Stopover (DTW)
DL1454, DL1365
06h 04min
Return
02/26/26
1 Stopover (DTW)
DL2432, DL2073
05h 56min
Delta Air Lines ?
$294
Washington-DC
San Antonio
Outbound
11/24/25
direct
AA1947
03h 48min
Return
12/12/25
direct
AA1718
03h 15min
American Airlines ?
$321
Washington-DC
San Antonio
Outbound
02/13/26
1 Stopover (ORD)
UA0210, UA1394
07h 12min
Return
02/26/26
direct
UA1282
06h 01min
United Airlines ?
$352
Washington-DC
San Antonio
Outbound
11/24/25
direct
AA1947
03h 48min
Return
12/12/25
direct
AA1718
03h 15min
American Airlines ?
$352
Washington-DC
San Antonio
Outbound
02/13/26
1 Stopover (DFW)
AA3271, AA2281
06h 12min
Return
02/26/26
direct
AA1718
03h 15min
American Airlines ?
$476
Washington-DC
San Antonio
Outbound
02/13/26
1 Stopover (DEN)
F90689, F92356
16h 18min
Return
02/26/26
1 Stopover (DEN)
F93707, F90690
10h 46min
Frontier Airlines
$687
Washington-DC
San Antonio
Outbound
11/24/25
3 Stopovers (DEN, ATL, DEN)
F90689, F93294, F93599, F92356
41h 23min
Return
12/12/25
2 Stopovers (ATL, DEN)
F94810, F93293, F90688
21h 17min
Frontier Airlines ?
$907
Washington-DC
San Antonio
Outbound
02/13/26
1 Stopover (SEA)
AS0001, AS0494
10h 58min
Return
02/26/26
1 Stopover (PHX)
AS4688, AS4452
10h 43min
Alaska Airlines ?
$12,849
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
44 %
Delta
25 %
JetBlue Airways
14 %
Cheapest weekday: Tuesday
Compared to other weekdays, flights are cheapest on Tuesday.
Stopover flights are the cheapest connection
Direct flights on this route are $32.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
03h 28min
05h 23min
09h 16min
$272
$240
$1,958
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 58 % of travelers will book a direct flight.
Route
bookings
Direct flights
03h 28min, from $272
58 %
1 stopover Hartsfield-Jackson Atlanta International Airport, GA
05h 23min, from $240
17 %
1 stopover Detroit Metropolitan Wayne County Airport, MI
06h 26min, from $240
12 %

Important flight information

Flight information: Washington-DC - San Antonio

Roundtrip from $253.13
Flight duration min. 03:42 / max. 08:00
Return flight duration min. 03:01/ max. 04:40
Distance 2223 km
Flights per week 42
Departure airport Airport Washington-DC (WAS)
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