All airlines flying from Saint Louis (STL) to Washington Dulles (IAD).

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 12:15 Saint Louis (STL) 1 15:27 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-02-12 through 2026-03-28
Daily 12:15 Saint Louis (STL) 1 15:23 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Daily 12:44 Saint Louis (STL) 1 15:55 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:11 Effective 2026-01-07 through 2026-02-11
Daily 13:00 Saint Louis (STL) 1 16:06 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Daily 13:05 Saint Louis (STL) 1 16:11 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:06 Valid until 2026-01-05
Tue 13:12 Saint Louis (STL) 1 16:23 Washington Dulles (IAD)
United Airlines UA 4454 Non-stop Canadair CRJ 550 (CR5) 2:11 Operates only on 2026-01-06
Daily 08:15 Saint Louis (STL) 1 11:24 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:09 Valid until 2026-01-05
Daily 08:25 Saint Louis (STL) 1 11:31 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-01-06 through 2026-02-03
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-02-05 through 2026-03-04
Daily 08:30 Saint Louis (STL) 1 11:42 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-03-05 through 2026-03-28
Daily 08:30 Saint Louis (STL) 1 11:38 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Wed 08:45 Saint Louis (STL) 1 11:55 Washington Dulles (IAD)
United Airlines UA 4506 Non-stop Canadair CRJ 550 (CR5) 2:10 Operates only on 2026-02-04
Direct Codeshare Flights:
Daily 08:15 Saint Louis (STL) 1 11:24 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:09 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:25 Saint Louis (STL) 1 11:31 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-01-06 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-02-05 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:42 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:38 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4506)
Wed 08:45 Saint Louis (STL) 1 11:55 Washington Dulles (IAD)
Avianca AV 2337 Non-stop Canadair CRJ 550 (CR5) 2:10 Operates only on 2026-02-04
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:15 Saint Louis (STL) 1 11:24 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:09 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:25 Saint Louis (STL) 1 11:31 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-01-06 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:40 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:10 Effective 2026-02-05 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:42 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 08:30 Saint Louis (STL) 1 11:38 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4506)
Wed 08:45 Saint Louis (STL) 1 11:55 Washington Dulles (IAD)
Copa Airlines CM 2684 Non-stop Canadair CRJ 550 (CR5) 2:10 Operates only on 2026-02-04
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 12:15 Saint Louis (STL) 1 15:27 Washington Dulles (IAD)
Copa Airlines CM 2685 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:15 Saint Louis (STL) 1 15:23 Washington Dulles (IAD)
Copa Airlines CM 2685 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 08:25 Saint Louis (STL) 1 11:31 Washington Dulles (IAD)
Lufthansa LH 7749 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective 2026-05-21 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 4506)
Mon-Wed,Sat,Sun 08:30 Saint Louis (STL) 1 11:38 Washington Dulles (IAD)
Lufthansa LH 7749 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-05-16 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4506)
Daily 12:15 Saint Louis (STL) 1 15:27 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-02-12 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:15 Saint Louis (STL) 1 15:23 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:44 Saint Louis (STL) 1 15:55 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:11 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 13:00 Saint Louis (STL) 1 16:06 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 13:05 Saint Louis (STL) 1 16:11 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:06 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4454)
Tue 13:12 Saint Louis (STL) 1 16:23 Washington Dulles (IAD)
Lufthansa LH 8585 Non-stop Canadair CRJ 550 (CR5) 2:11 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:15 Saint Louis (STL) 1 15:27 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:12 Effective 2026-02-12 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:15 Saint Louis (STL) 1 15:23 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:08 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 12:44 Saint Louis (STL) 1 15:55 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:11 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 13:00 Saint Louis (STL) 1 16:06 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:06 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 4454)
Daily 13:05 Saint Louis (STL) 1 16:11 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:06 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4454)
Tue 13:12 Saint Louis (STL) 1 16:23 Washington Dulles (IAD)
Brussels Airlines SN 9013 Non-stop Canadair CRJ 550 (CR5) 2:11 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 4454)
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All airlines flying from Saint Louis (STL) to Washington Dulles (IAD).
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4454
12:15
Saint Louis (STL) 1

15:27
Washington Dulles (IAD)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4454
12:15
Saint Louis (STL) 1

15:23
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4454
12:44
Saint Louis (STL) 1

15:55
Washington Dulles (IAD)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4454
13:00
Saint Louis (STL) 1

16:06
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4454
13:05
Saint Louis (STL) 1

16:11
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4454
13:12
Saint Louis (STL) 1

16:23
Washington Dulles (IAD)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:15
Saint Louis (STL) 1

11:24
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:25
Saint Louis (STL) 1

11:31
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-02-05 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:30
Saint Louis (STL) 1

11:42
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:30
Saint Louis (STL) 1

11:38
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Flights:
United Airlines UA4506
08:45
Saint Louis (STL) 1

11:55
Washington Dulles (IAD)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:15
Saint Louis (STL) 1

11:24
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:25
Saint Louis (STL) 1

11:31
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-02-05 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:30
Saint Louis (STL) 1

11:42
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:30
Saint Louis (STL) 1

11:38
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Avianca AV2337
08:45
Saint Louis (STL) 1

11:55
Washington Dulles (IAD)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:15
Saint Louis (STL) 1

11:24
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:09, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:25
Saint Louis (STL) 1

11:31
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:30
Saint Louis (STL) 1

11:40
Washington Dulles (IAD)
Effective 2026-02-05 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:30
Saint Louis (STL) 1

11:42
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:30
Saint Louis (STL) 1

11:38
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2684
08:45
Saint Louis (STL) 1

11:55
Washington Dulles (IAD)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:10, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2685
12:15
Saint Louis (STL) 1

15:27
Washington Dulles (IAD)
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Copa Airlines CM2685
12:15
Saint Louis (STL) 1

15:23
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH7749
08:25
Saint Louis (STL) 1

11:31
Washington Dulles (IAD)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH7749
08:30
Saint Louis (STL) 1

11:38
Washington Dulles (IAD)
Effective 2026-05-16 through 2026-05-20
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4506)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
12:15
Saint Louis (STL) 1

15:27
Washington Dulles (IAD)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
12:15
Saint Louis (STL) 1

15:23
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
12:44
Saint Louis (STL) 1

15:55
Washington Dulles (IAD)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
13:00
Saint Louis (STL) 1

16:06
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
13:05
Saint Louis (STL) 1

16:11
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Lufthansa LH8585
13:12
Saint Louis (STL) 1

16:23
Washington Dulles (IAD)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
12:15
Saint Louis (STL) 1

15:27
Washington Dulles (IAD)
Effective 2026-02-12 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:12, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
12:15
Saint Louis (STL) 1

15:23
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:08, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
12:44
Saint Louis (STL) 1

15:55
Washington Dulles (IAD)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
13:00
Saint Louis (STL) 1

16:06
Washington Dulles (IAD)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
13:05
Saint Louis (STL) 1

16:11
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:06, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Brussels Airlines SN9013
13:12
Saint Louis (STL) 1

16:23
Washington Dulles (IAD)
Operates only on 2026-01-06
Mon
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Tue
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Thu
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Fri
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Codeshare flight, operated by United Airlines. (UA 4454)
Duration: 2:11, non-stop
Canadair CRJ 550 (CR5)
Ad mobi box here (300x250px) 6815354179 M FlightInfo Bottom Box
Parallax here STL-IAD
  • A domestic route departing from the Saint Louis airport (STL) and arriving at Washington Dulles airport (IAD).
  • The flight distance is 694 miles, or 1117 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 2:06 and 2:12.
Return (IAD-STL) flights
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