Air Canada flight AC 4937: Saint Louis - Chicago O'Hare

FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon 07:40 Saint Louis (STL) 1 09:09 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-900 (739) 1:29 Operates only on 2026-03-09 Codeshare flight, operated by United Airlines.(UA 2138)
Mon,Tue 07:40 Saint Louis (STL) 1 09:09 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-900 (739) 1:29 Effective 2026-03-17 through 2026-03-23 Codeshare flight, operated by United Airlines.(UA 2138)
Wed 07:40 Saint Louis (STL) 1 09:09 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-900 (739) 1:29 Operates only on 2026-03-25 Codeshare flight, operated by United Airlines.(UA 2138)
Thu 07:41 Saint Louis (STL) 1 09:14 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Operates only on 2026-02-12 Codeshare flight, operated by United Airlines.(UA 4608)
Tue-Thu 07:41 Saint Louis (STL) 1 09:10 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Airbus A319 (319) 1:29 Effective 2026-02-17 through 2026-02-19 Codeshare flight, operated by United Airlines.(UA 1612)
Wed-Sun 07:41 Saint Louis (STL) 1 09:10 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Airbus A319 (319) 1:29 Effective 2026-02-25 through 2026-03-01 Codeshare flight, operated by United Airlines.(UA 1612)
Fri,Sat 07:41 Saint Louis (STL) 1 09:10 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-900 (739) 1:29 Effective 2026-03-07 through 2026-03-14 Codeshare flight, operated by United Airlines.(UA 2138)
Sun 07:41 Saint Louis (STL) 1 09:10 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-700 (73G) 1:29 Effective 2026-03-15 through 2026-03-22 Codeshare flight, operated by United Airlines.(UA 2138)
Sat 07:41 Saint Louis (STL) 1 09:10 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Boeing 737-900 (739) 1:29 Operates only on 2026-03-21 Codeshare flight, operated by United Airlines.(UA 2138)
Fri,Sun 07:45 Saint Louis (STL) 1 09:11 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Airbus A319 (319) 1:26 Effective 2026-04-03 through 2026-04-05 Codeshare flight, operated by United Airlines.(UA 473)
Mon,Sat 07:45 Saint Louis (STL) 1 09:11 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Airbus A319 (319) 1:26 Effective 2026-04-11 through 2026-04-13 Codeshare flight, operated by United Airlines.(UA 473)
Tue 07:45 Saint Louis (STL) 1 09:11 Chicago O'Hare (ORD) 1 AC 4937 Non-stop Airbus A319 (319) 1:26 Operates only on 2026-04-21 Codeshare flight, operated by United Airlines.(UA 473)
Mon,Fri-Sun 08:17 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-13 through 2026-02-23 Codeshare flight, operated by United Airlines.(UA 4608)
Mon,Tue 08:17 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-24 through 2026-03-03 Codeshare flight, operated by United Airlines.(UA 4608)
Tue-Fri 08:17 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-03-04 through 2026-03-12 Codeshare flight, operated by United Airlines.(UA 4608)
Mon,Wed-Fri 08:17 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-03-16 through 2026-03-20 Codeshare flight, operated by United Airlines.(UA 4608)
Tue,Thu-Sat 08:17 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-03-24 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 4608)
Sun 08:19 Saint Louis (STL) 1 09:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:31 Operates only on 2026-03-08 Codeshare flight, operated by United Airlines.(UA 4608)
Mon,Wed,Sun 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-29 through 2026-04-01 Codeshare flight, operated by United Airlines.(UA 4608)
Sat 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Operates only on 2026-04-18 Codeshare flight, operated by United Airlines.(UA 4608)
Tue,Sun 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-26 through 2026-04-28 Codeshare flight, operated by United Airlines.(UA 4608)
Mon,Tue,Thu,Sat 13:14 Saint Louis (STL) 1 14:43 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-03-31 through 2026-04-07 Codeshare flight, operated by United Airlines.(UA 4592)
Tue-Fri,Sun 13:14 Saint Louis (STL) 1 14:43 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-08 through 2026-04-19 Codeshare flight, operated by United Airlines.(UA 4592)
Mon,Wed-Sat 13:14 Saint Louis (STL) 1 14:43 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-20 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 4592)
Tue,Wed,Fri 13:15 Saint Louis (STL) 1 14:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-07 through 2026-01-13 Codeshare flight, operated by United Airlines.(UA 4437)
Mon,Wed,Thu,Sat 13:15 Saint Louis (STL) 1 14:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-15 through 2026-01-21 Codeshare flight, operated by United Airlines.(UA 4437)
Tue,Fri,Sun 13:15 Saint Louis (STL) 1 14:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-23 through 2026-01-27 Codeshare flight, operated by United Airlines.(UA 4437)
Mon,Thu,Sat 13:15 Saint Louis (STL) 1 14:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:35 Effective 2026-01-31 through 2026-02-09 Codeshare flight, operated by United Airlines.(UA 4437)
Tue 13:15 Saint Louis (STL) 1 14:50 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:35 Operates only on 2026-02-10 Codeshare flight, operated by United Airlines.(UA 4437)
Daily 18:35 Saint Louis (STL) 1 20:19 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Embraer EMB 175 (E7W) 1:44 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 5523)
Mon,Tue,Thu,Sun 18:40 Saint Louis (STL) 1 20:23 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-06 through 2026-01-12 Codeshare flight, operated by United Airlines.(UA 4559)
Tue,Wed,Fri 18:40 Saint Louis (STL) 1 20:23 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-14 through 2026-01-20 Codeshare flight, operated by United Airlines.(UA 4559)
Mon,Wed,Thu 18:40 Saint Louis (STL) 1 20:23 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-22 through 2026-01-29 Codeshare flight, operated by United Airlines.(UA 4559)
Tue,Wed,Fri,Sun 18:40 Saint Louis (STL) 1 20:23 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-30 through 2026-02-08 Codeshare flight, operated by United Airlines.(UA 4559)
Wed 18:40 Saint Louis (STL) 1 20:23 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Canadair CRJ 550 (CR5) 1:43 Operates only on 2026-02-11 Codeshare flight, operated by United Airlines.(UA 4559)
Daily 18:49 Saint Louis (STL) 1 20:17 Chicago O'Hare (ORD) 2 AC 4937 Non-stop Embraer EMB 175 (E7W) 1:28 Effective 2026-04-30 through 2026-10-24 Codeshare flight, operated by United Airlines.(UA 5684)

AC 4937 is a domestic flight 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 1:26 and 1:44.

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Air Canada flight AC 4937:
Saint Louis - Chicago O'Hare

FLIGHT SCHEDULE

Direct Codeshare Flights:

Air Canada AC4937

07:40

Saint Louis (STL) 1

09:09

Chicago O'Hare (ORD) 1

Operates only on 2026-03-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC4937

07:40

Saint Louis (STL) 1

09:09

Chicago O'Hare (ORD) 1

Effective 2026-03-17 through 2026-03-23

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC4937

07:40

Saint Louis (STL) 1

09:09

Chicago O'Hare (ORD) 1

Operates only on 2026-03-25

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:14

Chicago O'Hare (ORD) 2

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:10

Chicago O'Hare (ORD) 1

Effective 2026-02-17 through 2026-02-19

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1612)

Duration: 1:29, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:10

Chicago O'Hare (ORD) 1

Effective 2026-02-25 through 2026-03-01

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1612)

Duration: 1:29, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:10

Chicago O'Hare (ORD) 1

Effective 2026-03-07 through 2026-03-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:10

Chicago O'Hare (ORD) 1

Effective 2026-03-15 through 2026-03-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-700 (73G)

Direct Codeshare Flights:

Air Canada AC4937

07:41

Saint Louis (STL) 1

09:10

Chicago O'Hare (ORD) 1

Operates only on 2026-03-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2138)

Duration: 1:29, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Air Canada AC4937

07:45

Saint Louis (STL) 1

09:11

Chicago O'Hare (ORD) 1

Effective 2026-04-03 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 473)

Duration: 1:26, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4937

07:45

Saint Louis (STL) 1

09:11

Chicago O'Hare (ORD) 1

Effective 2026-04-11 through 2026-04-13

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 473)

Duration: 1:26, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4937

07:45

Saint Louis (STL) 1

09:11

Chicago O'Hare (ORD) 1

Operates only on 2026-04-21

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 473)

Duration: 1:26, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Air Canada AC4937

08:17

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Effective 2026-02-13 through 2026-02-23

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:17

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Effective 2026-02-24 through 2026-03-03

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:17

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Effective 2026-03-04 through 2026-03-12

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:17

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Effective 2026-03-16 through 2026-03-20

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:17

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Effective 2026-03-24 through 2026-03-28

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:19

Saint Louis (STL) 1

09:50

Chicago O'Hare (ORD) 2

Operates only on 2026-03-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:31, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:26

Saint Louis (STL) 1

09:55

Chicago O'Hare (ORD) 2

Effective 2026-03-29 through 2026-04-01

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:26

Saint Louis (STL) 1

09:55

Chicago O'Hare (ORD) 2

Operates only on 2026-04-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

08:26

Saint Louis (STL) 1

09:55

Chicago O'Hare (ORD) 2

Effective 2026-04-26 through 2026-04-28

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4608)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:14

Saint Louis (STL) 1

14:43

Chicago O'Hare (ORD) 2

Effective 2026-03-31 through 2026-04-07

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4592)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:14

Saint Louis (STL) 1

14:43

Chicago O'Hare (ORD) 2

Effective 2026-04-08 through 2026-04-19

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4592)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:14

Saint Louis (STL) 1

14:43

Chicago O'Hare (ORD) 2

Effective 2026-04-20 through 2026-04-29

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4592)

Duration: 1:29, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:15

Saint Louis (STL) 1

14:50

Chicago O'Hare (ORD) 2

Effective 2026-01-07 through 2026-01-13

Mon
-

Tue

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4437)

Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:15

Saint Louis (STL) 1

14:50

Chicago O'Hare (ORD) 2

Effective 2026-01-15 through 2026-01-21

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4437)

Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:15

Saint Louis (STL) 1

14:50

Chicago O'Hare (ORD) 2

Effective 2026-01-23 through 2026-01-27

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4437)

Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:15

Saint Louis (STL) 1

14:50

Chicago O'Hare (ORD) 2

Effective 2026-01-31 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 4437)

Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

13:15

Saint Louis (STL) 1

14:50

Chicago O'Hare (ORD) 2

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4437)

Duration: 1:35, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:35

Saint Louis (STL) 1

20:19

Chicago O'Hare (ORD) 2

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 5523)

Duration: 1:44, non-stop
Embraer EMB 175 (E7W)

Direct Codeshare Flights:

Air Canada AC4937

18:40

Saint Louis (STL) 1

20:23

Chicago O'Hare (ORD) 2

Effective 2026-01-06 through 2026-01-12

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4559)

Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:40

Saint Louis (STL) 1

20:23

Chicago O'Hare (ORD) 2

Effective 2026-01-14 through 2026-01-20

Mon
-

Tue

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4559)

Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:40

Saint Louis (STL) 1

20:23

Chicago O'Hare (ORD) 2

Effective 2026-01-22 through 2026-01-29

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4559)

Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:40

Saint Louis (STL) 1

20:23

Chicago O'Hare (ORD) 2

Effective 2026-01-30 through 2026-02-08

Mon
-

Tue

Wed

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 4559)

Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:40

Saint Louis (STL) 1

20:23

Chicago O'Hare (ORD) 2

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 4559)

Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)

Direct Codeshare Flights:

Air Canada AC4937

18:49

Saint Louis (STL) 1

20:17

Chicago O'Hare (ORD) 2

Effective 2026-04-30 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 5684)

Duration: 1:28, non-stop
Embraer EMB 175 (E7W)

AC 4937 is a domestic flight 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 1:26 and 1:44.

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