Air Canada flight AC 3451: Denver - San Francisco

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 19:40 Denver (DEN) 21:31 San Francisco (SFO) 3
AC 3451 Non-stop Boeing 757-300 (753) 2:51 Effective 2026-03-29 through 2026-04-19
Codeshare flight, operated by United Airlines.(UA 1389)
Wed-Sun 20:51 Denver (DEN) 22:47 San Francisco (SFO) 3
AC 3451 Non-stop Airbus A321neo (32Q) 2:56 Effective 2026-03-05 through 2026-03-28
Codeshare flight, operated by United Airlines.(UA 2123)
Mon,Tue 20:51 Denver (DEN) 22:47 San Francisco (SFO) 3
AC 3451 Non-stop Boeing 757-200 (752) 2:56 Effective 2026-03-09 through 2026-03-24
Codeshare flight, operated by United Airlines.(UA 2123)
Daily 20:51 Denver (DEN) 22:43 San Francisco (SFO) 3
AC 3451 Non-stop Boeing 737 MAX 8 (7M8) 2:52 Effective from 2026-04-20
Codeshare flight, operated by United Airlines.(UA 2123)
Air Canada flight AC 3451:
Denver - San Francisco
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Air Canada AC3451
Effective 2026-03-29 through 2026-04-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 1389)
Duration: 2:51, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Air Canada AC3451
Effective 2026-03-05 through 2026-03-28
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2123)
Duration: 2:56, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Air Canada AC3451
Effective 2026-03-09 through 2026-03-24
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by United Airlines. (UA 2123)
Duration: 2:56, non-stop
Boeing 757-200 (752)

Direct Codeshare Flights:

Air Canada AC3451
Effective from 2026-04-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines. (UA 2123)
Duration: 2:52, non-stop
Boeing 737 MAX 8 (7M8)
  • AC 3451 is a domestic flight departing from the Denver airport (DEN) and arriving at San Francisco airport (SFO).
  • The flight distance is 964 miles, or 1552 km.
  • The timezone of the departure airport is UTC-7 , 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 2:51 and 2:56.