United Airlines flights from Saint Louis (STL) to Chicago O'Hare (ORD).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 10:10 Saint Louis (STL) 1 11:39 Chicago O'Hare (ORD) 2
United Airlines UA 4426 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2024-10-27 through 2024-11-27
Daily 10:10 Saint Louis (STL) 1 11:39 Chicago O'Hare (ORD) 2
United Airlines UA 4426 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2024-11-29 through 2024-12-18
Daily 10:30 Saint Louis (STL) 1 11:58 Chicago O'Hare (ORD) 2
United Airlines UA 4426 Non-stop Canadair CRJ 550 (CR5) 1:28 Effective from 2025-01-07
Daily 10:35 Saint Louis (STL) 1 12:05 Chicago O'Hare (ORD) 2
United Airlines UA 4426 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2024-12-19 through 2025-01-06
Daily 06:25 Saint Louis (STL) 1 08:00 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2024-12-19 through 2025-01-06
Daily 06:30 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2024-09-26 through 2024-10-26
Daily 06:30 Saint Louis (STL) 1 07:59 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2024-10-27 through 2024-11-28
Daily 06:30 Saint Louis (STL) 1 07:59 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2024-11-30 through 2024-12-18
Daily 06:34 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:31 Valid until 2024-09-25
Daily 06:45 Saint Louis (STL) 1 08:05 Chicago O'Hare (ORD) 2
United Airlines UA 4428 Non-stop Canadair CRJ 550 (CR5) 1:20 Effective from 2025-01-07
Sun 09:30 Saint Louis (STL) 1 10:59 Chicago O'Hare (ORD) 2
United Airlines UA 4468 Non-stop Canadair CRJ 550 (CR5) 1:29 Operates only on 2024-09-01
Thu 09:30 Saint Louis (STL) 1 10:59 Chicago O'Hare (ORD) 2
United Airlines UA 4468 Non-stop Canadair CRJ 550 (CR5) 1:29 Operates only on 2024-09-26
Mon,Fri-Sun 10:00 Saint Louis (STL) 1 11:29 Chicago O'Hare (ORD) 2
United Airlines UA 4468 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2024-09-27 through 2024-09-30
Daily 15:10 Saint Louis (STL) 1 16:44 Chicago O'Hare (ORD) 2
United Airlines UA 4570 Non-stop Canadair CRJ 550 (CR5) 1:34 Effective 2024-12-19 through 2025-01-06
Daily 15:15 Saint Louis (STL) 1 16:44 Chicago O'Hare (ORD) 2
United Airlines UA 4570 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2025-01-07 through 2025-02-12
Daily 15:20 Saint Louis (STL) 1 16:47 Chicago O'Hare (ORD) 2
United Airlines UA 4570 Non-stop Canadair CRJ 550 (CR5) 1:27 Effective 2024-10-27 through 2024-11-27
Daily 15:20 Saint Louis (STL) 1 16:47 Chicago O'Hare (ORD) 2
United Airlines UA 4570 Non-stop Canadair CRJ 550 (CR5) 1:27 Effective 2024-11-29 through 2024-12-18
Mon,Tue,Thu-Sun 05:00 Saint Louis (STL) 1 06:35 Chicago O'Hare (ORD) 2
United Airlines UA 4619 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2024-12-19 through 2025-01-06
Sat 11:09 Saint Louis (STL) 1 12:33 Chicago O'Hare (ORD) 2
United Airlines UA 5556 Non-stop Embraer EMB 175 (E7W) 1:24 Effective 2024-10-05 through 2024-10-26
Mon-Fri,Sun 15:35 Saint Louis (STL) 1 17:04 Chicago O'Hare (ORD) 2
United Airlines UA 5969 Non-stop Embraer EMB 175 (E7W) 1:29 Effective 2024-09-26 through 2024-10-25
Sat 15:35 Saint Louis (STL) 1 17:04 Chicago O'Hare (ORD) 2
United Airlines UA 5969 Non-stop Embraer EMB 175 (E7W) 1:29 Effective 2024-10-05 through 2024-10-26
Non-Direct Flights:
Sat,Sun 16:35 Saint Louis (STL) 1 06:02 Chicago O'Hare (ORD) 1
United Airlines UA 1875 2-stop Airbus A320 (320) 13:27 Effective 2024-11-30 through 2024-12-01
The flight arrives 1 day after departure.
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United Airlines flights from Saint Louis (STL) to Chicago O'Hare (ORD).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA4426
10:10
Saint Louis (STL) 1

11:39
Chicago O'Hare (ORD) 2
Effective 2024-10-27 through 2024-11-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4426
10:10
Saint Louis (STL) 1

11:39
Chicago O'Hare (ORD) 2
Effective 2024-11-29 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4426
10:30
Saint Louis (STL) 1

11:58
Chicago O'Hare (ORD) 2
Effective from 2025-01-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:28, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4426
10:35
Saint Louis (STL) 1

12:05
Chicago O'Hare (ORD) 2
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:25
Saint Louis (STL) 1

08:00
Chicago O'Hare (ORD) 2
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:30
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:30
Saint Louis (STL) 1

07:59
Chicago O'Hare (ORD) 2
Effective 2024-10-27 through 2024-11-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:30
Saint Louis (STL) 1

07:59
Chicago O'Hare (ORD) 2
Effective 2024-11-30 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:34
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Valid until 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4428
06:45
Saint Louis (STL) 1

08:05
Chicago O'Hare (ORD) 2
Effective from 2025-01-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:20, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4468
09:30
Saint Louis (STL) 1

10:59
Chicago O'Hare (ORD) 2
Operates only on 2024-09-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4468
09:30
Saint Louis (STL) 1

10:59
Chicago O'Hare (ORD) 2
Operates only on 2024-09-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4468
10:00
Saint Louis (STL) 1

11:29
Chicago O'Hare (ORD) 2
Effective 2024-09-27 through 2024-09-30
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4570
15:10
Saint Louis (STL) 1

16:44
Chicago O'Hare (ORD) 2
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:34, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4570
15:15
Saint Louis (STL) 1

16:44
Chicago O'Hare (ORD) 2
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4570
15:20
Saint Louis (STL) 1

16:47
Chicago O'Hare (ORD) 2
Effective 2024-10-27 through 2024-11-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4570
15:20
Saint Louis (STL) 1

16:47
Chicago O'Hare (ORD) 2
Effective 2024-11-29 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:27, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA4619
05:00
Saint Louis (STL) 1

06:35
Chicago O'Hare (ORD) 2
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)
United Airlines UA5556
11:09
Saint Louis (STL) 1

12:33
Chicago O'Hare (ORD) 2
Effective 2024-10-05 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:24, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5969
15:35
Saint Louis (STL) 1

17:04
Chicago O'Hare (ORD) 2
Effective 2024-09-26 through 2024-10-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:29, non-stop
Embraer EMB 175 (E7W)
United Airlines UA5969
15:35
Saint Louis (STL) 1

17:04
Chicago O'Hare (ORD) 2
Effective 2024-10-05 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:29, non-stop
Embraer EMB 175 (E7W)
Non-Direct Flights:
United Airlines UA1875
16:35
Saint Louis (STL) 1

06:02(+1)
Chicago O'Hare (ORD) 1
Effective 2024-11-30 through 2024-12-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 13:27, 2-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
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  • A domestic route departing from the Saint Louis airport (STL) and arriving at Chicago O'Hare airport (ORD).
  • The flight distance is 258 miles, or 415 km.
  • The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 1:11 and 1:36.
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