Air Canada flight AC 4451: Dulles, Washington - Chicago O'Hare

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 08:20 Dulles, Washington (IAD) 09:36 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737 MAX 9 (7M9) 2:16 Effective 2025-08-19 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 2401)
Sat 08:23 Dulles, Washington (IAD) 09:37 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-900 (739) 2:14 Effective 2025-05-03 through 2025-05-17
Codeshare flight, operated by United Airlines.(UA 2440)
Thu 08:25 Dulles, Washington (IAD) 09:38 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-900 (739) 2:13 Operates only on 2025-05-22
Codeshare flight, operated by United Airlines.(UA 2440)
Daily 08:25 Dulles, Washington (IAD) 09:38 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Airbus A321neo (32Q) 2:13 Effective 2025-05-23 through 2025-06-25
Codeshare flight, operated by United Airlines.(UA 2440)
Mon,Tue,Thu,Fri,Sun 08:30 Dulles, Washington (IAD) 09:44 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-900 (739) 2:14 Valid until 2025-05-08
Codeshare flight, operated by United Airlines.(UA 2440)
Wed 08:30 Dulles, Washington (IAD) 09:44 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737 MAX 8 (7M8) 2:14 Operates only on 2025-05-07
Codeshare flight, operated by United Airlines.(UA 2440)
Fri 08:30 Dulles, Washington (IAD) 09:44 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-800 (738) 2:14 Operates only on 2025-05-09
Codeshare flight, operated by United Airlines.(UA 2440)
Mon-Fri,Sun 08:30 Dulles, Washington (IAD) 09:44 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-900 (739) 2:14 Effective 2025-05-11 through 2025-05-21
Codeshare flight, operated by United Airlines.(UA 2440)
Thu 08:30 Dulles, Washington (IAD) 09:41 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Airbus A321neo (32Q) 2:11 Operates only on 2025-06-26
Codeshare flight, operated by United Airlines.(UA 1909)
Daily 08:30 Dulles, Washington (IAD) 09:43 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737 MAX 9 (7M9) 2:13 Effective 2025-06-27 through 2025-07-04
Codeshare flight, operated by United Airlines.(UA 1909)
Sat 08:30 Dulles, Washington (IAD) 09:43 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-700 (73G) 2:13 Operates only on 2025-07-05
Codeshare flight, operated by United Airlines.(UA 1909)
Daily 08:30 Dulles, Washington (IAD) 09:43 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737 MAX 9 (7M9) 2:13 Effective 2025-07-06 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 1909)
Daily 08:35 Dulles, Washington (IAD) 09:39 Chicago O'Hare (ORD) 1
AC 4451 Non-stop Boeing 737-800 (738) 2:04 Effective from 2025-10-26
Codeshare flight, operated by United Airlines.(UA 2401)
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Air Canada flight AC 4451:
Dulles, Washington - Chicago O'Hare
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air Canada AC4451
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2401)
Duration: 2:16, non-stop
Boeing 737 MAX 9 (7M9)

Air Canada AC4451
Effective 2025-05-03 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:14, non-stop
Boeing 737-900 (739)

Air Canada AC4451
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:13, non-stop
Boeing 737-900 (739)

Air Canada AC4451
Effective 2025-05-23 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:13, non-stop
Airbus A321neo (32Q)

Air Canada AC4451
Valid until 2025-05-08
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:14, non-stop
Boeing 737-900 (739)

Air Canada AC4451
Operates only on 2025-05-07
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:14, non-stop
Boeing 737 MAX 8 (7M8)

Air Canada AC4451
Operates only on 2025-05-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:14, non-stop
Boeing 737-800 (738)

Air Canada AC4451
Effective 2025-05-11 through 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2440)
Duration: 2:14, non-stop
Boeing 737-900 (739)

Air Canada AC4451
Operates only on 2025-06-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1909)
Duration: 2:11, non-stop
Airbus A321neo (32Q)

Air Canada AC4451
Effective 2025-06-27 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1909)
Duration: 2:13, non-stop
Boeing 737 MAX 9 (7M9)

Air Canada AC4451
Operates only on 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1909)
Duration: 2:13, non-stop
Boeing 737-700 (73G)

Air Canada AC4451
Effective 2025-07-06 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1909)
Duration: 2:13, non-stop
Boeing 737 MAX 9 (7M9)

Air Canada AC4451
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2401)
Duration: 2:04, non-stop
Boeing 737-800 (738)
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  • AC 4451 is a domestic flight departing from the Dulles, Washington airport (IAD) and arriving at Chicago O'Hare airport (ORD).
  • The flight distance is 587 miles, or 945 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-6 . 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 2:04 and 2:16.