Air Canada flight AC 4919: Saint Louis - Chicago O'Hare

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue-Sun 05:00 Saint Louis (STL) 1 06:30 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:30 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 4537)
Tue,Thu 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-07 through 2026-04-09
Codeshare flight, operated by United Airlines.(UA 4608)
Wed,Fri 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-15 through 2026-04-17
Codeshare flight, operated by United Airlines.(UA 4608)
Thu,Sat 08:26 Saint Louis (STL) 1 09:55 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:29 Effective 2026-04-23 through 2026-04-25
Codeshare flight, operated by United Airlines.(UA 4608)
Daily 16:49 Saint Louis (STL) 1 18:32 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:43 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 4494)
Mon-Fri,Sun 16:49 Saint Louis (STL) 1 18:22 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:33 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 4487)
Daily 17:02 Saint Louis (STL) 1 18:45 Chicago O'Hare (ORD) 2
AC 4919 Non-stop Canadair CRJ 550 (CR5) 1:43 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 4526)
Daily 17:18 Saint Louis (STL) 1 18:34 Chicago O'Hare (ORD) 1
AC 4919 Non-stop Airbus A319 (319) 1:16 Effective from 2026-04-30
Codeshare flight, operated by United Airlines.(UA 1744)


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Air Canada flight AC 4919:
Saint Louis - Chicago O'Hare
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4919
05:00
Saint Louis (STL) 1

06:30
Chicago O'Hare (ORD) 2
Effective 2026-03-05 through 2026-03-28
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4537)
Duration: 1:30, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4919
08:26
Saint Louis (STL) 1

09:55
Chicago O'Hare (ORD) 2
Effective 2026-04-07 through 2026-04-09
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 AC4919
08:26
Saint Louis (STL) 1

09:55
Chicago O'Hare (ORD) 2
Effective 2026-04-15 through 2026-04-17
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 AC4919
08:26
Saint Louis (STL) 1

09:55
Chicago O'Hare (ORD) 2
Effective 2026-04-23 through 2026-04-25
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 AC4919
16:49
Saint Louis (STL) 1

18:32
Chicago O'Hare (ORD) 2
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4494)
Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4919
16:49
Saint Louis (STL) 1

18:22
Chicago O'Hare (ORD) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 4487)
Duration: 1:33, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4919
17:02
Saint Louis (STL) 1

18:45
Chicago O'Hare (ORD) 2
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 4526)
Duration: 1:43, non-stop
Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4919
17:18
Saint Louis (STL) 1

18:34
Chicago O'Hare (ORD) 1
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1744)
Duration: 1:16, non-stop
Airbus A319 (319)
  • AC 4919 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 1:16 and 1:43.
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