Live tracking not available yet
AC4021 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
SFO
San Francisco International Airport
San Francisco
T2 Gate F13 Scheduled 8:39 AM
Actual 8:39 AM
YYC
Calgary International Airport
Calgary
Gate D89 Scheduled 12:26 PM
Actual 12:26 PM
2h 47m flight time
Daily
Recent Flights
No flight history yet
History builds as this flight gets tracked
Schedule
Operates
Daily
Departure
8:39 AM
Arrival
12:26 PM
Duration
2h 47m
Aircraft
Boeing 737-800
Terminal
T2
Gate
F13
D89
Actual
08:39
12:26
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Wed, Mar 18
Thu, Mar 19
Fri, Mar 20
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
Schedule valid
Mar 02 —
Jun 03, 2026