Air Canada flight AC 5237: Chicago O'Hare - Denver

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon 17:50 Chicago O'Hare (ORD) 1 19:46 Denver (DEN)
AC 5237 Non-stop Boeing 757-300 (753) 2:56 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2494)
Daily 17:50 Chicago O'Hare (ORD) 1 19:48 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-02-12 through 2026-02-20
Codeshare flight, operated by United Airlines.(UA 2494)
Daily 17:50 Chicago O'Hare (ORD) 1 19:48 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-02-22 through 2026-03-07
Codeshare flight, operated by United Airlines.(UA 2494)
Mon-Fri,Sun 17:50 Chicago O'Hare (ORD) 1 19:48 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-03-08 through 2026-03-27
Codeshare flight, operated by United Airlines.(UA 2494)
Sat 17:50 Chicago O'Hare (ORD) 1 19:48 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Operates only on 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2494)
Tue,Wed,Sun 17:52 Chicago O'Hare (ORD) 1 19:31 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:39 Effective 2026-03-29 through 2026-04-01
Codeshare flight, operated by United Airlines.(UA 2494)
Mon-Wed 17:52 Chicago O'Hare (ORD) 1 19:31 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:39 Effective 2026-04-06 through 2026-04-08
Codeshare flight, operated by United Airlines.(UA 2494)
Tue,Wed 17:52 Chicago O'Hare (ORD) 1 19:31 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:39 Effective 2026-04-14 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 2494)
Mon-Fri,Sun 17:52 Chicago O'Hare (ORD) 1 19:31 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:39 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 511)
Daily 17:52 Chicago O'Hare (ORD) 1 19:31 Denver (DEN)
AC 5237 Non-stop Boeing 737-900 (739) 2:39 Effective 2026-05-21 through 2026-10-24
Codeshare flight, operated by United Airlines.(UA 2202)
Mon-Fri,Sun 18:15 Chicago O'Hare (ORD) 1 20:13 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 1027)
Sat 18:15 Chicago O'Hare (ORD) 1 20:12 Denver (DEN)
AC 5237 Non-stop Boeing 737 MAX 9 (7M9) 2:57 Effective 2026-01-10 through 2026-02-07
Codeshare flight, operated by United Airlines.(UA 1027)
Daily 18:15 Chicago O'Hare (ORD) 1 19:54 Denver (DEN)
AC 5237 Non-stop Boeing 737-900 (739) 2:39 Effective from 2026-10-25
Codeshare flight, operated by United Airlines.(UA 2202)
Mon,Thu-Sun 19:39 Chicago O'Hare (ORD) 1 21:25 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:46 Effective 2026-03-30 through 2026-04-05
Codeshare flight, operated by United Airlines.(UA 329)
Mon,Thu-Sun 19:39 Chicago O'Hare (ORD) 1 21:25 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:46 Effective 2026-04-09 through 2026-04-27
Codeshare flight, operated by United Airlines.(UA 329)
Sat 19:39 Chicago O'Hare (ORD) 1 21:25 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:46 Effective 2026-05-02 through 2026-05-16
Codeshare flight, operated by United Airlines.(UA 329)
Sat 19:57 Chicago O'Hare (ORD) 1 21:55 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-03-14 through 2026-03-21
Codeshare flight, operated by United Airlines.(UA 767)
Sat 20:07 Chicago O'Hare (ORD) 1 22:05 Denver (DEN)
AC 5237 Non-stop Airbus A321neo (32Q) 2:58 Operates only on 2026-02-21
Codeshare flight, operated by United Airlines.(UA 767)


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Air Canada flight AC 5237:
Chicago O'Hare - Denver
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC5237
17:50
Chicago O'Hare (ORD) 1

19:46
Denver (DEN)
Valid until 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:56, non-stop
Boeing 757-300 (753)
Direct Codeshare Flights:
Air Canada AC5237
17:50
Chicago O'Hare (ORD) 1

19:48
Denver (DEN)
Effective 2026-02-12 through 2026-02-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:50
Chicago O'Hare (ORD) 1

19:48
Denver (DEN)
Effective 2026-02-22 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:50
Chicago O'Hare (ORD) 1

19:48
Denver (DEN)
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:50
Chicago O'Hare (ORD) 1

19:48
Denver (DEN)
Operates only on 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:52
Chicago O'Hare (ORD) 1

19:31
Denver (DEN)
Effective 2026-03-29 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:39, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:52
Chicago O'Hare (ORD) 1

19:31
Denver (DEN)
Effective 2026-04-06 through 2026-04-08
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:39, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:52
Chicago O'Hare (ORD) 1

19:31
Denver (DEN)
Effective 2026-04-14 through 2026-04-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2494)
Duration: 2:39, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:52
Chicago O'Hare (ORD) 1

19:31
Denver (DEN)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 511)
Duration: 2:39, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
17:52
Chicago O'Hare (ORD) 1

19:31
Denver (DEN)
Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2202)
Duration: 2:39, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC5237
18:15
Chicago O'Hare (ORD) 1

20:13
Denver (DEN)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1027)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
18:15
Chicago O'Hare (ORD) 1

20:12
Denver (DEN)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1027)
Duration: 2:57, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5237
18:15
Chicago O'Hare (ORD) 1

19:54
Denver (DEN)
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2202)
Duration: 2:39, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC5237
19:39
Chicago O'Hare (ORD) 1

21:25
Denver (DEN)
Effective 2026-03-30 through 2026-04-05
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 329)
Duration: 2:46, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
19:39
Chicago O'Hare (ORD) 1

21:25
Denver (DEN)
Effective 2026-04-09 through 2026-04-27
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 329)
Duration: 2:46, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
19:39
Chicago O'Hare (ORD) 1

21:25
Denver (DEN)
Effective 2026-05-02 through 2026-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 329)
Duration: 2:46, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
19:57
Chicago O'Hare (ORD) 1

21:55
Denver (DEN)
Effective 2026-03-14 through 2026-03-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 767)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC5237
20:07
Chicago O'Hare (ORD) 1

22:05
Denver (DEN)
Operates only on 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 767)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
  • AC 5237 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Denver airport (DEN).
  • The flight distance is 885 miles, or 1425 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-7 . 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 2:39 and 2:58.
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