Air Canada flight AC 4373: Chicago O'Hare - San Francisco

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed-Fri 21:05 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Boeing 757-300 (753) 4:54 Valid until 2025-05-08
Codeshare flight, operated by United Airlines.(UA 2106)
Wed-Fri,Sun 21:05 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Boeing 757-300 (753) 4:54 Effective 2025-05-11 through 2025-05-18
Codeshare flight, operated by United Airlines.(UA 2106)
Mon,Wed-Fri 21:09 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-05-22 through 2025-05-28
Codeshare flight, operated by United Airlines.(UA 2106)
Mon,Fri,Sun 21:09 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-05-30 through 2025-06-02
Codeshare flight, operated by United Airlines.(UA 2106)
Mon,Wed 21:09 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-06-11 through 2025-06-18
Codeshare flight, operated by United Airlines.(UA 2106)
Wed 21:09 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Operates only on 2025-06-25
Codeshare flight, operated by United Airlines.(UA 2106)
Thu-Sun 21:10 Chicago O'Hare (ORD) 1 23:56 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-09-26 through 2025-10-05
Codeshare flight, operated by United Airlines.(UA 2106)
Mon-Wed,Sun 21:10 Chicago O'Hare (ORD) 1 23:56 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-10-06 through 2025-10-15
Codeshare flight, operated by United Airlines.(UA 2106)
Mon-Thu 21:10 Chicago O'Hare (ORD) 1 23:56 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-10-16 through 2025-10-23
Codeshare flight, operated by United Airlines.(UA 2106)
Fri,Sat 21:10 Chicago O'Hare (ORD) 1 23:56 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-10-24 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 2106)
Mon,Tue,Thu-Sun 21:13 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-08-19 through 2025-08-25
Codeshare flight, operated by United Airlines.(UA 2106)
Daily 21:13 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-08-30 through 2025-09-05
Codeshare flight, operated by United Airlines.(UA 2106)
Wed-Sat 21:13 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-09-10 through 2025-09-13
Codeshare flight, operated by United Airlines.(UA 2106)
Sat,Sun 21:13 Chicago O'Hare (ORD) 1 23:59 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:46 Effective 2025-09-20 through 2025-09-21
Codeshare flight, operated by United Airlines.(UA 2106)
Daily 21:21 Chicago O'Hare (ORD) 1 00:09 San Francisco (SFO) 3
AC 4373 Non-stop Boeing 737-900 (739) 4:48 Effective 2025-10-26 through 2025-12-01
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Daily 21:21 Chicago O'Hare (ORD) 1 00:09 San Francisco (SFO) 3
AC 4373 Non-stop Boeing 737-900 (739) 4:48 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Thu,Fri 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-06-26 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Mon,Wed,Fri,Sun 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-07-06 through 2025-07-16
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Mon,Wed,Thu,Sun 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-07-17 through 2025-07-24
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Wed-Fri 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-07-25 through 2025-07-31
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Mon,Wed-Fri,Sun 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-08-03 through 2025-08-08
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
Mon,Wed-Fri,Sun 21:40 Chicago O'Hare (ORD) 1 00:30 San Francisco (SFO) 3
AC 4373 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-08-11 through 2025-08-17
Codeshare flight, operated by United Airlines.(UA 2106)
The flight arrives 1 day after departure.
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Air Canada flight AC 4373:
Chicago O'Hare - San Francisco
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4373
21:05
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Valid until 2025-05-08
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:54, non-stop
Boeing 757-300 (753)
Air Canada AC4373
21:05
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-05-11 through 2025-05-18
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:54, non-stop
Boeing 757-300 (753)
Air Canada AC4373
21:09
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-05-22 through 2025-05-28
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:09
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-05-30 through 2025-06-02
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:09
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-06-11 through 2025-06-18
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:09
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Operates only on 2025-06-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:10
Chicago O'Hare (ORD) 1

23:56
San Francisco (SFO) 3
Effective 2025-09-26 through 2025-10-05
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:10
Chicago O'Hare (ORD) 1

23:56
San Francisco (SFO) 3
Effective 2025-10-06 through 2025-10-15
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:10
Chicago O'Hare (ORD) 1

23:56
San Francisco (SFO) 3
Effective 2025-10-16 through 2025-10-23
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:10
Chicago O'Hare (ORD) 1

23:56
San Francisco (SFO) 3
Effective 2025-10-24 through 2025-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:13
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-08-19 through 2025-08-25
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:13
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-08-30 through 2025-09-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:13
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-09-10 through 2025-09-13
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:13
Chicago O'Hare (ORD) 1

23:59
San Francisco (SFO) 3
Effective 2025-09-20 through 2025-09-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:46, non-stop
Airbus A321neo (32Q)
Air Canada AC4373
21:21
Chicago O'Hare (ORD) 1

00:09(+1)
San Francisco (SFO) 3
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:48, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Air Canada AC4373
21:21
Chicago O'Hare (ORD) 1

00:09(+1)
San Francisco (SFO) 3
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:48, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-06-26 through 2025-07-03
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-07-06 through 2025-07-16
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-07-17 through 2025-07-24
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-07-25 through 2025-07-31
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-08-03 through 2025-08-08
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Air Canada AC4373
21:40
Chicago O'Hare (ORD) 1

00:30(+1)
San Francisco (SFO) 3
Effective 2025-08-11 through 2025-08-17
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 2106)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
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Parallax here ORD-SFO
  • AC 4373 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at San Francisco airport (SFO).
  • The flight distance is 1840 miles, or 2962 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . 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 4:46 and 4:54.
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