Airlines with flights from Dulles to Saint Louis
There are four airlines with scheduled flights between IAD and STL. United is the only airline with non-stop flights from Washington Dulles Airport to Saint Louis Airport and the flight time is 2 hours and 26 minutes.
There are four airlines with scheduled flights between IAD and STL. United is the only airline with non-stop flights from Washington Dulles Airport to Saint Louis Airport and the flight time is 2 hours and 26 minutes. Choose airline
Direct
Non-stop
2h 26min
Via Charlotte
4h 2min
Via Detroit
4h 11min
Via Chicago
4h 21min
Via Atlanta
4h 27min
Via Atlanta
5h 11min
Via New York
5h 44min
Starts 07/06
Via New York
5h 24min
NEW
Starts 11/08
Via Norfolk
8h 17min
Schedules
Non-stop with United Airlines
-
Total flight time: 2 hours and 26 minutes
-
Dulles is a United Airlines hub (Secondary hub).
-
14 flights per week
-
Canadair (Bombardier) Regional Jet 550
-
First class available
IAD
Direct
STL
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA4388
09:00
09:00
09:00
09:00
09:00
09:00
09:00
UA4527
17:55
17:55
17:55
17:55
17:55
17:55
17:55
The timetable & schedule information was updated at 2026-04-22
Via Charlotte with American Airlines
-
Total flight time: 4h 02m - 6h 50m.
-
One World Alliance
-
174 flights per week
IAD
Via CLT
STL
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AA5220
AA2731
AA2731
13:06
13:06
13:06
13:06
13:06
13:12
13:06
AA2953
AA459
AA459
20:22
20:22
20:22
20:22
20:22
20:22
20:22
The timetable & schedule information was updated at 2026-04-22
Via Detroit with Delta Air Lines
-
Total flight time: 4h 11m - 4h 48m.
-
Sky Team Alliance
-
77 flights per week
IAD
Via DTW
STL
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL3826
DL2868
DL2868
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL3787
DL1541
DL1541
----
----
----
----
----
17:20
----
DL1787
DL1541
DL1541
17:21
17:21
17:21
17:21
17:21
----
17:21
The timetable & schedule information was updated at 2026-04-22
Via Chicago with United Airlines
-
Total flight time: 4h 21m - 6h 45m.
-
Dulles is a United Airlines hub (Secondary hub).
-
136 flights per week
-
Canadair (Bombardier) Regional Jet 550
IAD
Via ORD
STL
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
UA1778
UA4613
UA4613
06:10
06:10
06:10
06:10
06:10
06:10
06:10
UA1775
UA1355
UA1355
08:15
08:15
08:15
08:15
08:15
08:15
08:15
UA1252
UA4581
UA4581
10:31
10:31
10:31
10:31
10:31
10:31
10:31
UA2331
UA4552
UA4552
13:25
13:25
13:25
13:25
13:25
13:25
13:25
UA2649
UA4416
UA4416
15:39
15:39
15:39
15:39
15:39
15:39
15:39
UA2497
UA2144
UA2144
17:38
17:38
----
17:38
17:38
17:38
17:38
UA2497
UA2471
UA2471
----
----
17:38
----
----
----
----
The timetable & schedule information was updated at 2026-04-22
Via Atlanta with Delta Air Lines
-
Total flight time: 4h 27m - 6h 56m.
-
Sky Team Alliance
-
164 flights per week
IAD
Via ATL
STL
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL2127
DL1400
DL1400
06:00
06:00
06:00
06:00
06:00
----
06:00
DL1354
DL566
DL566
08:27
08:27
08:27
08:27
08:27
----
08:27
DL2127
DL566
DL566
----
----
----
----
----
08:27
----
DL1324
DL2700
DL2700
10:16
10:16
10:16
10:16
10:16
10:58
10:16
DL1444
DL543
DL543
12:37
12:37
12:37
12:37
12:37
----
12:39
DL1444
DL1393
DL1393
----
----
----
----
----
12:47
----
DL1695
DL2833
DL2833
17:51
----
17:51
17:51
17:51
----
17:51
DL2902
DL1403
DL1403
19:39
19:39
19:39
19:39
19:39
----
19:39
The timetable & schedule information was updated at 2026-04-22
Via Atlanta with Frontier