Air Canada flight AC 5423: Ontario, Los Angeles - Denver

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Thu 05:00 Ontario, Los Angeles (ONT) 2 08:16 Denver (DEN)
AC 5423 Non-stop Boeing 737 MAX 9 (7M9) 2:16 Operates only on 2026-02-12
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:00 Ontario, Los Angeles (ONT) 2 08:16 Denver (DEN)
AC 5423 Non-stop Boeing 737-800 (738) 2:16 Effective 2026-02-13 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:00 Ontario, Los Angeles (ONT) 2 08:11 Denver (DEN)
AC 5423 Non-stop Boeing 737-800 (738) 2:11 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 2446)
Mon,Thu 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737-900 (739) 2:19 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2446)
Tue,Wed,Fri-Sun 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737-800 (738) 2:19 Valid until 2026-01-06
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-01-07 through 2026-01-17
Codeshare flight, operated by United Airlines.(UA 2446)
Sun 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737-900 (739) 2:19 Operates only on 2026-01-18
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-01-19 through 2026-02-03
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:24 Denver (DEN)
AC 5423 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-02-05 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:27 Denver (DEN)
AC 5423 Non-stop Boeing 737-800 (738) 2:22 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:10 Ontario, Los Angeles (ONT) 2 08:32 Denver (DEN)
AC 5423 Non-stop Boeing 737 MAX 9 (7M9) 2:22 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 2446)
Daily 05:15 Ontario, Los Angeles (ONT) 2 08:32 Denver (DEN)
AC 5423 Non-stop Airbus A319 (319) 2:17 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2446)
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Air Canada flight AC 5423:
Ontario, Los Angeles - Denver
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC5423
05:00
Ontario, Los Angeles (ONT) 2

08:16
Denver (DEN)
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:16, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5423
05:00
Ontario, Los Angeles (ONT) 2

08:16
Denver (DEN)
Effective 2026-02-13 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:16, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC5423
05:00
Ontario, Los Angeles (ONT) 2

08:11
Denver (DEN)
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:11, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Valid until 2026-01-05
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Valid until 2026-01-06
Mon
-
Tue
Wed
Thu
-
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Effective 2026-01-07 through 2026-01-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737-900 (739)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Effective 2026-01-19 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:24
Denver (DEN)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:19, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5423
05:05
Ontario, Los Angeles (ONT) 2

08:27
Denver (DEN)
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:22, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC5423
05:10
Ontario, Los Angeles (ONT) 2

08:32
Denver (DEN)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:22, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC5423
05:15
Ontario, Los Angeles (ONT) 2

08:32
Denver (DEN)
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2446)
Duration: 2:17, non-stop
Airbus A319 (319)
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  • AC 5423 is a domestic flight departing from the Ontario, Los Angeles airport (ONT) and arriving at Denver airport (DEN).
  • The flight distance is 817 miles, or 1315 km.
  • The timezone of the departure airport is UTC-8 , 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 2:11 and 2:22.
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