Air Canada flight AC 3971: Chicago O'Hare - Denver

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 12:45 Chicago O'Hare (ORD) 1 14:43 Denver (DEN)
AC 3971 Non-stop Airbus A321neo (32Q) 2:58 Operates only on 2026-01-06
Codeshare flight, operated by United Airlines.(UA 2616)
Daily 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 3971 Non-stop Airbus A321neo (32Q) 2:38 Effective 2026-03-29 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 1113)
Daily 12:45 Chicago O'Hare (ORD) 1 14:23 Denver (DEN)
AC 3971 Non-stop Boeing 757-300 (753) 2:38 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 1113)
Daily 12:50 Chicago O'Hare (ORD) 1 14:48 Denver (DEN)
AC 3971 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-02-12 through 2026-03-07
Codeshare flight, operated by United Airlines.(UA 2616)
Sun 12:50 Chicago O'Hare (ORD) 1 14:47 Denver (DEN)
AC 3971 Non-stop Boeing 737-900 (739) 2:57 Effective 2026-03-08 through 2026-03-22
Codeshare flight, operated by United Airlines.(UA 1113)
Mon-Sat 12:50 Chicago O'Hare (ORD) 1 14:48 Denver (DEN)
AC 3971 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-03-09 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2616)
Daily 12:53 Chicago O'Hare (ORD) 1 14:51 Denver (DEN)
AC 3971 Non-stop Airbus A321neo (32Q) 2:58 Effective 2026-01-07 through 2026-02-10
Codeshare flight, operated by United Airlines.(UA 2616)
Wed 12:53 Chicago O'Hare (ORD) 1 14:50 Denver (DEN)
AC 3971 Non-stop Boeing 737-900 (739) 2:57 Operates only on 2026-02-11
Codeshare flight, operated by United Airlines.(UA 2616)


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Air Canada flight AC 3971:
Chicago O'Hare - Denver
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC3971
12:45
Chicago O'Hare (ORD) 1

14:43
Denver (DEN)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2616)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3971
12:45
Chicago O'Hare (ORD) 1

14:23
Denver (DEN)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1113)
Duration: 2:38, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3971
12:45
Chicago O'Hare (ORD) 1

14:23
Denver (DEN)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1113)
Duration: 2:38, non-stop
Boeing 757-300 (753)
Direct Codeshare Flights:
Air Canada AC3971
12:50
Chicago O'Hare (ORD) 1

14:48
Denver (DEN)
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2616)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3971
12:50
Chicago O'Hare (ORD) 1

14:47
Denver (DEN)
Effective 2026-03-08 through 2026-03-22
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1113)
Duration: 2:57, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC3971
12:50
Chicago O'Hare (ORD) 1

14:48
Denver (DEN)
Effective 2026-03-09 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2616)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3971
12:53
Chicago O'Hare (ORD) 1

14:51
Denver (DEN)
Effective 2026-01-07 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2616)
Duration: 2:58, non-stop
Airbus A321neo (32Q)
Direct Codeshare Flights:
Air Canada AC3971
12:53
Chicago O'Hare (ORD) 1

14:50
Denver (DEN)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2616)
Duration: 2:57, non-stop
Boeing 737-900 (739)
  • AC 3971 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 2:38 and 2:58.
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