Airlines with flights from Dulles to San Antonio

There are three airlines with scheduled flights between IAD and SAT. United is the only airline with non-stop flights from Washington Dulles Airport to San Antonio International and the flight time is 3 hours and 37 minutes.

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Schedules

United Airlines

Non-stop with United Airlines

  • Total flight time: 3 hours and 37 minutes
  • Dulles is a United Airlines hub (Secondary hub).
  • 14 flights per week
  • Boeing 737-900 Passenger
    Boeing 737MAX 8 Passenger
    Embraer 175 (Enhanced Winglets)
    Boeing 737-700 Passenger
  • Business and first class available
IAD
Direct
SAT

The timetable & schedule information was updated at 2026-04-22

American Airlines

Via Charlotte with American Airlines

  • Total flight time: 4h 59m - 7h 10m.
  • One World Alliance
  • 148 flights per week
IAD
 
Via CLT
 
SAT

The timetable & schedule information was updated at 2026-04-22

Delta Air Lines

Via Atlanta with Delta Air Lines

  • Total flight time: 5h 09m - 7h 30m.
  • Sky Team Alliance
  • 196 flights per week
IAD
 
Via ATL
 
SAT
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL2127
DL1121
06:00
06:00
06:00
06:00
06:00
----
06:00
DL1354
DL1121
----
----
----
----
----
06:33
----
DL1354
DL1408
08:27
08:27
08:27
08:27
08:27
----
08:27
DL2127
DL1408
----
----
----
----
----
08:27
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DL1324
DL2009
10:16
10:16
10:16
10:16
10:16
10:58
10:16
DL1444
DL1465
12:37
12:37
12:37
12:37
12:37
12:47
12:39
DL2135
DL2893
15:02
15:02
15:02
15:02
15:02
15:02
15:08
DL1695
DL1222
17:51
----
----
17:51
17:51
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17:51
DL2902
DL1508
19:39
19:39
19:39
19:39
19:39
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19:39
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAD - SAT

The timetable & schedule information was updated at 2026-04-22

American Airlines

Via Dallas with American Airlines

  • Total flight time: 5h 12m - 7h 31m.
  • One World Alliance
  • 122 flights per week
IAD
 
Via DFW
 
SAT

The timetable & schedule information was updated at 2026-04-22

United Airlines

Via Houston with United Airlines

  • Total flight time: 5h 14m - 7h 20m.
  • Dulles is a United Airlines hub (Secondary hub).
  • 151 flights per week
  • Boeing 737-900 Passenger
    Boeing 737MAX 8 Passenger
    Embraer 175 (Enhanced Winglets)
    Boeing 737-700 Passenger
IAD
 
Via IAH
 
SAT
 
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA1907
UA6201
06:30
06:30
06:30
06:30
06:30
06:30
06:30
UA1524
UA6202
08:40
08:40
08:40
08:40
08:40
08:40
08:40
UA1535
UA5379
12:50
12:50
12:50
12:50
12:50
----
12:50
UA2857
UA1477
14:53
14:53
14:53
14:53
14:53
14:53
14:53
UA2217
UA2198
17:59
17:59
17:59
17:59
17:59
17:59
17:59
SHOW RETURN SCHEDULE
CHECK PRICES FOR IAD - SAT

The timetable & schedule information was updated at 2026-04-22

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Flight data on this page was last updated on 2026-06-02