Air Canada flight AC 4234: Chicago O'Hare - Washington Dulles

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 21:13 Chicago O'Hare (ORD) 1 23:57 Washington Dulles (IAD)
AC 4234 Non-stop Boeing 737-800 (738) 1:44 Effective from 2026-05-01
Codeshare flight, operated by United Airlines.(UA 1922)
Mon,Wed-Fri 21:15 Chicago O'Hare (ORD) 1 00:15 Washington Dulles (IAD)
AC 4234 Non-stop Boeing 737-900 (739) 2:00 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 1023)
The flight arrives 1 day after departure.
Sat 21:15 Chicago O'Hare (ORD) 1 00:15 Washington Dulles (IAD)
AC 4234 Non-stop Airbus A320 (320) 2:00 Operates only on 2026-01-03
Codeshare flight, operated by United Airlines.(UA 1023)
The flight arrives 1 day after departure.
Sun 21:15 Chicago O'Hare (ORD) 1 00:15 Washington Dulles (IAD)
AC 4234 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Operates only on 2026-01-04
Codeshare flight, operated by United Airlines.(UA 1023)
The flight arrives 1 day after departure.
Wed-Fri,Sun 21:15 Chicago O'Hare (ORD) 1 00:05 Washington Dulles (IAD)
AC 4234 Non-stop Airbus A321neo (32Q) 1:50 Effective 2026-03-05 through 2026-03-27
Codeshare flight, operated by United Airlines.(UA 488)
The flight arrives 1 day after departure.
Sat 21:15 Chicago O'Hare (ORD) 1 00:04 Washington Dulles (IAD)
AC 4234 Non-stop Boeing 757-300 (753) 1:49 Operates only on 2026-03-07
Codeshare flight, operated by United Airlines.(UA 488)
The flight arrives 1 day after departure.
Daily 21:15 Chicago O'Hare (ORD) 1 00:12 Washington Dulles (IAD)
AC 4234 Non-stop Airbus A321neo (32Q) 1:57 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 1922)
The flight arrives 1 day after departure.
Sat 21:32 Chicago O'Hare (ORD) 1 00:21 Washington Dulles (IAD)
AC 4234 Non-stop Boeing 737-900 (739) 1:49 Effective 2026-03-14 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 488)
The flight arrives 1 day after departure.


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Air Canada flight AC 4234:
Chicago O'Hare - Washington Dulles
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4234
21:13
Chicago O'Hare (ORD) 1

23:57
Washington Dulles (IAD)
Effective from 2026-05-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1922)
Duration: 1:44, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:15(+1)
Washington Dulles (IAD)
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1023)
Duration: 2:00, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:15(+1)
Washington Dulles (IAD)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1023)
Duration: 2:00, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:15(+1)
Washington Dulles (IAD)
Operates only on 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 1023)
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:05(+1)
Washington Dulles (IAD)
Effective 2026-03-05 through 2026-03-27
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 488)
Duration: 1:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:04(+1)
Washington Dulles (IAD)
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 488)
Duration: 1:49, non-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:15
Chicago O'Hare (ORD) 1

00:12(+1)
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1922)
Duration: 1:57, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Canada AC4234
21:32
Chicago O'Hare (ORD) 1

00:21(+1)
Washington Dulles (IAD)
Effective 2026-03-14 through 2026-03-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 488)
Duration: 1:49, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
  • AC 4234 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Washington Dulles airport (IAD).
  • The flight distance is 587 miles, or 945 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . 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 1:44 and 2:00.
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