Air Canada flight AC 4771: Chicago O'Hare - Denver

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed,Thu,Sat,Sun 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by United Airlines.(UA 1484)
Tue,Sun 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Effective 2025-11-02 through 2025-11-09
Codeshare flight, operated by United Airlines.(UA 1484)
Mon,Wed 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Effective 2025-11-10 through 2025-11-19
Codeshare flight, operated by United Airlines.(UA 1484)
Tue,Thu 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Effective 2025-11-20 through 2025-11-27
Codeshare flight, operated by United Airlines.(UA 1484)
Sat 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Operates only on 2025-11-29
Codeshare flight, operated by United Airlines.(UA 1484)
Fri,Sat 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:38 Effective 2025-12-19 through 2025-12-20
Codeshare flight, operated by United Airlines.(UA 1484)
Mon,Tue 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Effective 2025-10-27 through 2025-10-28
Codeshare flight, operated by United Airlines.(UA 1245)
Wed-Fri 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Effective 2025-11-05 through 2025-11-07
Codeshare flight, operated by United Airlines.(UA 1245)
Thu-Sat 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Effective 2025-11-13 through 2025-11-15
Codeshare flight, operated by United Airlines.(UA 1245)
Fri-Sun 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Effective 2025-11-21 through 2025-11-23
Codeshare flight, operated by United Airlines.(UA 1245)
Sun 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Operates only on 2025-11-30
Codeshare flight, operated by United Airlines.(UA 1245)
Sun 13:20 Chicago O'Hare (ORD) 1 14:57 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:37 Operates only on 2025-12-21
Codeshare flight, operated by United Airlines.(UA 1245)
Mon,Tue,Sat 13:58 Chicago O'Hare (ORD) 1 15:39 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:41 Effective 2025-08-19 through 2025-08-25
Codeshare flight, operated by United Airlines.(UA 503)
Wed,Fri,Sun 13:58 Chicago O'Hare (ORD) 1 15:39 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:41 Effective 2025-08-27 through 2025-09-07
Codeshare flight, operated by United Airlines.(UA 503)
Mon,Tue,Thu,Sat 13:58 Chicago O'Hare (ORD) 1 15:39 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:41 Effective 2025-09-09 through 2025-09-15
Codeshare flight, operated by United Airlines.(UA 503)
Tue,Wed,Fri,Sun 13:58 Chicago O'Hare (ORD) 1 15:39 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:41 Effective 2025-09-17 through 2025-09-23
Codeshare flight, operated by United Airlines.(UA 503)
Daily 14:18 Chicago O'Hare (ORD) 1 15:56 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:38 Effective 2025-12-02 through 2025-12-17
Codeshare flight, operated by United Airlines.(UA 503)
Daily 14:18 Chicago O'Hare (ORD) 1 15:56 Denver (DEN)
AC 4771 Non-stop Boeing 737-900 (739) 2:38 Effective from 2025-12-22
Codeshare flight, operated by United Airlines.(UA 503)
Mon,Tue,Thu-Sun 14:33 Chicago O'Hare (ORD) 1 16:26 Denver (DEN)
AC 4771 Non-stop Airbus A321neo (32Q) 2:53 Effective 2025-05-22 through 2025-06-03
Codeshare flight, operated by United Airlines.(UA 503)
Wed 14:33 Chicago O'Hare (ORD) 1 16:25 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:52 Operates only on 2025-05-28
Codeshare flight, operated by United Airlines.(UA 503)
Daily 14:33 Chicago O'Hare (ORD) 1 16:26 Denver (DEN)
AC 4771 Non-stop Airbus A321neo (32Q) 2:53 Effective 2025-06-04 through 2025-06-24
Codeshare flight, operated by United Airlines.(UA 503)
Wed 14:33 Chicago O'Hare (ORD) 1 16:26 Denver (DEN)
AC 4771 Non-stop Boeing 737 MAX 9 (7M9) 2:53 Operates only on 2025-06-25
Codeshare flight, operated by United Airlines.(UA 503)
Daily 14:35 Chicago O'Hare (ORD) 1 16:30 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:55 Valid until 2025-05-21
Codeshare flight, operated by United Airlines.(UA 1588)
Daily 14:35 Chicago O'Hare (ORD) 1 16:27 Denver (DEN)
AC 4771 Non-stop Boeing 757-300 (753) 2:52 Effective 2025-06-26 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 503)
Tue-Fri,Sun 14:53 Chicago O'Hare (ORD) 1 16:35 Denver (DEN)
AC 4771 Non-stop Boeing 777 (777) 2:42 Effective 2025-08-20 through 2025-08-26
Codeshare flight, operated by United Airlines.(UA 2048)
Mon,Tue,Thu,Sat 14:53 Chicago O'Hare (ORD) 1 16:35 Denver (DEN)
AC 4771 Non-stop Boeing 777 (777) 2:42 Effective 2025-08-28 through 2025-09-08
Codeshare flight, operated by United Airlines.(UA 2048)
Tue,Wed,Fri,Sun 14:53 Chicago O'Hare (ORD) 1 16:35 Denver (DEN)
AC 4771 Non-stop Boeing 777 (777) 2:42 Effective 2025-09-10 through 2025-09-16
Codeshare flight, operated by United Airlines.(UA 2048)
Mon,Wed,Thu,Sat 14:53 Chicago O'Hare (ORD) 1 16:35 Denver (DEN)
AC 4771 Non-stop Boeing 777 (777) 2:42 Effective 2025-09-18 through 2025-09-24
Codeshare flight, operated by United Airlines.(UA 2048)
Daily 14:53 Chicago O'Hare (ORD) 1 16:35 Denver (DEN)
AC 4771 Non-stop Boeing 777 (777) 2:42 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 664)
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Air Canada flight AC 4771:
Chicago O'Hare - Denver
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air Canada AC4771
Effective 2025-10-26 through 2025-11-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-11-02 through 2025-11-09
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-11-10 through 2025-11-19
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-11-20 through 2025-11-27
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Operates only on 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-12-19 through 2025-12-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1484)
Duration: 2:38, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-10-27 through 2025-10-28
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-11-05 through 2025-11-07
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-11-13 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-11-21 through 2025-11-23
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Operates only on 2025-12-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1245)
Duration: 2:37, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-08-19 through 2025-08-25
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:41, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-08-27 through 2025-09-07
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:41, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-09-09 through 2025-09-15
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:41, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-09-17 through 2025-09-23
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:41, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-12-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:38, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective from 2025-12-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:38, non-stop
Boeing 737-900 (739)

Air Canada AC4771
Effective 2025-05-22 through 2025-06-03
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:53, non-stop
Airbus A321neo (32Q)

Air Canada AC4771
Operates only on 2025-05-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:52, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-06-04 through 2025-06-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:53, non-stop
Airbus A321neo (32Q)

Air Canada AC4771
Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:53, non-stop
Boeing 737 MAX 9 (7M9)

Air Canada AC4771
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1588)
Duration: 2:55, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 503)
Duration: 2:52, non-stop
Boeing 757-300 (753)

Air Canada AC4771
Effective 2025-08-20 through 2025-08-26
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2048)
Duration: 2:42, non-stop
Boeing 777 (777)

Air Canada AC4771
Effective 2025-08-28 through 2025-09-08
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2048)
Duration: 2:42, non-stop
Boeing 777 (777)

Air Canada AC4771
Effective 2025-09-10 through 2025-09-16
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2048)
Duration: 2:42, non-stop
Boeing 777 (777)

Air Canada AC4771
Effective 2025-09-18 through 2025-09-24
Mon
Tue
-
Wed
Thu
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2048)
Duration: 2:42, non-stop
Boeing 777 (777)

Air Canada AC4771
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 664)
Duration: 2:42, non-stop
Boeing 777 (777)
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  • AC 4771 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 2:37 and 2:55.