Air Canada
flight
AC 4251:
Denver - San Jose
Denver - San Jose
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4251
Valid until 2026-01-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 728)
Duration: 2:49, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4251
Operates only on 2026-01-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 728)
Duration: 2:49, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Air Canada AC4251
Effective from 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:41, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-01-06 through 2026-02-05
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:49, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-01-10 through 2026-02-07
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:48, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-02-06 through 2026-02-09
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:48, non-stop Boeing 737 MAX 9 (7M9)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-02-08 through 2026-02-11
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:49, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:51, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-03-08 through 2026-03-28
Mon
-
-
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:51, non-stop Airbus A320 (320)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-03-09 through 2026-03-24
Mon
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:50, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Air Canada AC4251
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 670)
Duration: 2:45, non-stop Airbus A319 (319)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here DEN-SJC
- AC 4251 is a domestic flight departing from the Denver airport (DEN) and arriving at San Jose airport (SJC).
- The flight distance is 945 miles, or 1521 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 2:41 and 2:51.