Air Canada flight AC 4021: San Francisco - Calgary

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon-Sat 08:29 San Francisco (SFO) 3 12:19 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:50 Valid until 2025-05-03
Codeshare flight, operated by United Airlines.(UA 1547)
Daily 08:29 San Francisco (SFO) 3 12:19 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:50 Effective 2025-05-04 through 2025-05-21
Codeshare flight, operated by United Airlines.(UA 1547)
Daily 08:37 San Francisco (SFO) 3 12:19 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:42 Effective 2025-09-25 through 2025-10-25
Codeshare flight, operated by United Airlines.(UA 1719)
Daily 08:40 San Francisco (SFO) 3 12:29 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:49 Effective 2025-10-26 through 2025-12-17
Codeshare flight, operated by United Airlines.(UA 1041)
Daily 08:40 San Francisco (SFO) 3 12:31 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:51 Effective 2025-12-18 through 2026-02-11
Codeshare flight, operated by United Airlines.(UA 1041)
Daily 08:40 San Francisco (SFO) 3 12:24 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:44 Effective from 2026-02-12
Codeshare flight, operated by United Airlines.(UA 1719)
Daily 08:41 San Francisco (SFO) 3 12:19 Calgary (YYC)
AC 4021 Non-stop Boeing 737-800 (738) 2:38 Effective 2025-05-22 through 2025-06-25
Codeshare flight, operated by United Airlines.(UA 1041)
Daily 18:46 San Francisco (SFO) 3 22:26 Calgary (YYC)
AC 4021 Non-stop Airbus A319 (319) 2:40 Effective 2025-06-26 through 2025-07-03
Codeshare flight, operated by United Airlines.(UA 1187)
Daily 18:46 San Francisco (SFO) 3 22:26 Calgary (YYC)
AC 4021 Non-stop Airbus A319 (319) 2:40 Effective 2025-07-05 through 2025-08-18
Codeshare flight, operated by United Airlines.(UA 1187)
Fri 18:47 San Francisco (SFO) 3 22:26 Calgary (YYC)
AC 4021 Non-stop Boeing 737 MAX 9 (7M9) 2:39 Operates only on 2025-07-04
Codeshare flight, operated by United Airlines.(UA 1187)
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Air Canada flight AC 4021:
San Francisco - Calgary
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air Canada AC4021
Valid until 2025-05-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by United Airlines. (UA 1547)
Duration: 2:50, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-05-04 through 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1547)
Duration: 2:50, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1719)
Duration: 2:42, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1041)
Duration: 2:49, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-12-18 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1041)
Duration: 2:51, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1719)
Duration: 2:44, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1041)
Duration: 2:38, non-stop
Boeing 737-800 (738)

Air Canada AC4021
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1187)
Duration: 2:40, non-stop
Airbus A319 (319)

Air Canada AC4021
Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1187)
Duration: 2:40, non-stop
Airbus A319 (319)

Air Canada AC4021
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 1187)
Duration: 2:39, non-stop
Boeing 737 MAX 9 (7M9)
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  • AC 4021 is an international flight departing from San Francisco airport, United States (SFO) and arriving at Calgary airport, Canada (YYC).
  • The flight distance is 1017 miles, or 1637 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 2:38 and 2:51.