AC857 LondonLHR · 14:10 TorontoYYZ · 17:20
AC857 by Air Canada Jetz flies from London (LHR) to Toronto (YYZ) for the Thu, Sep 17 departure.
estimated arrival at YYZ · local time · ~81 min from now
board checked 28m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 14:35 · typical taxi-out at LHR ≈ 11 min. No receiver coverage over open ocean.
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −11 min · 1 cancelled · 11 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LHR and YYZ are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other London to Toronto flights today
same route · Air Canada JetzIf AC857 is cancelled, these are the other Air Canada Jetz nonstop flights from London to Toronto on the same day, with scheduled departure times in LHR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AC857 actually runs
Pro Flight Search has tracked every published board update for AC857 across the LHR and YYZ boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 10 confirmed landings · 9/10 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how AC857 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: C-GHKX, C-GHKW, C-GOFW, C-GEGI.
Board clocks recorded as LHR and YYZ published them.
Planning around AC857? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AC857 London to Toronto on-time performance, measured from the LHR and YYZ airport boards.
https://proflightsearch.com/flight/AC857
.