Live tracking not available yet
AC851 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
LHR
London Heathrow Airport
London
T2 Gate B36 Scheduled 3:00 PM
Actual 3:00 PM
YYC
Calgary International Airport
Calgary
Gate D78 Scheduled 6:00 PM
Actual 5:49 PM
Baggage claim D
9h 0m flight time
Daily
Recent Flights
Last 1 observedMar 10
Tue
LHR
YYC
Dep 15:00:00
(actual 15:21:00)
788
In Air
Schedule
Operates
Daily
Departure
3:00 PM
Arrival
6:00 PM
Duration
9h 0m
Aircraft
Boeing 787-8 Dreamliner
Terminal
T2
Gate
B36
D78
Actual
15:00
17:49
Baggage
Carousel D
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 13 —
Jun 12, 2026