Air Canada flight AC 4122: San Francisco - Ontario, Los Angeles

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Tue,Thu-Sun 21:10 San Francisco (SFO) 3 22:41 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Embraer EMB 175 (E7W) 1:31 Valid until 2026-01-05
Codeshare flight, operated by United Airlines.(UA 5613)
Daily 21:16 San Francisco (SFO) 3 22:52 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 9 (7M9) 1:36 Effective 2026-04-30 through 2026-05-20
Codeshare flight, operated by United Airlines.(UA 552)
Tue-Fri,Sun 21:30 San Francisco (SFO) 3 22:53 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 9 (7M9) 1:23 Effective 2026-01-06 through 2026-02-10
Codeshare flight, operated by United Airlines.(UA 552)
Mon,Sat 21:30 San Francisco (SFO) 3 22:53 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 8 (7M8) 1:23 Effective 2026-01-10 through 2026-02-09
Codeshare flight, operated by United Airlines.(UA 552)
Mon,Wed-Fri,Sun 21:30 San Francisco (SFO) 3 22:57 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 8 (7M8) 1:27 Effective 2026-02-12 through 2026-03-04
Codeshare flight, operated by United Airlines.(UA 552)
Daily 21:30 San Francisco (SFO) 3 22:57 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 9 (7M9) 1:27 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 552)
Daily 21:30 San Francisco (SFO) 3 23:06 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 9 (7M9) 1:36 Effective 2026-03-29 through 2026-04-29
Codeshare flight, operated by United Airlines.(UA 552)
Daily 21:30 San Francisco (SFO) 3 23:06 Ontario, Los Angeles (ONT) 2
AC 4122 Non-stop Boeing 737 MAX 9 (7M9) 1:36 Effective from 2026-05-21
Codeshare flight, operated by United Airlines.(UA 552)


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Air Canada flight AC 4122:
San Francisco - Ontario, Los Angeles
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4122
21:10
San Francisco (SFO) 3

22:41
Ontario, Los Angeles (ONT) 2
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 5613)
Duration: 1:31, non-stop
Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4122
21:16
San Francisco (SFO) 3

22:52
Ontario, Los Angeles (ONT) 2
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:36, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

22:53
Ontario, Los Angeles (ONT) 2
Effective 2026-01-06 through 2026-02-10
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:23, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

22:53
Ontario, Los Angeles (ONT) 2
Effective 2026-01-10 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:23, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

22:57
Ontario, Los Angeles (ONT) 2
Effective 2026-02-12 through 2026-03-04
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:27, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

22:57
Ontario, Los Angeles (ONT) 2
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:27, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

23:06
Ontario, Los Angeles (ONT) 2
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:36, non-stop
Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4122
21:30
San Francisco (SFO) 3

23:06
Ontario, Los Angeles (ONT) 2
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 552)
Duration: 1:36, non-stop
Boeing 737 MAX 9 (7M9)
  • AC 4122 is a domestic flight departing from the San Francisco airport (SFO) and arriving at Ontario, Los Angeles airport (ONT).
  • The flight distance is 363 miles, or 584 km.
  • The timezone of both the departure and the arrival airports is UTC-8 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 1:23 and 1:36.
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