AC859Air Canada · LHR → YYZ
live · 6m ago
Route confirmed Air Canada

AC859 LondonLHR · 18:00 TorontoYYZ · 22:05

AC859 by Air Canada flies from London (LHR) to Toronto (YYZ) for the Thu, Oct 29 departure.

Right nowExpected · today
18:00

departs LHR · on schedule

⚖ AC859 typically leaves +27 and lands −7. The air wins minutes back.
Typical gate push+27 minmedian posted departure
Typical arrival−7 minmedian over 12 operations
Wins back in air~34 minmedian gate push vs arrival · how planes make up time → Cancellation3 in 15tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-29
−39 arrival
10-28
+19 gate · −39 arrival
10-27
+20 gate · −29 arrival
10-26
+30 gate · −9 arrival
10-25
+17 gate · −6 arrival
10-24
+21 gate · −15 arrival
10-23
+43 gate · +8 arrival

The 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 operation

median arrival −7 min · 3 cancelled · 15 operations tracked

The route today

live boards
LHRLondonModerate riskLHR delay board →
YYZTorontoOn-time likelyYYZ delay board →
LHR→YYZevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
36%Chance of 15+ min delay
6.5%Chance of cancellation
+9 minTypical airport delay in this weather

Driven mainly by YYZ (Toronto), currently flying MVFR (marginal visual). These figures come from both airports' records 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 →

Tomorrow on this route

Forecast

London to Toronto with Air Canada · Fri 30 Oct, local date

Outlook: about usual
Chance a departure is cancelled
2.3%1.1× usual
Chance a departure leaves 60+ min late
9.1%0.7× usual

Forecast weather: 28% chance of fog at London

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other London to Toronto flights today

same route · Air Canada
AC853departs 08:30
AC2359departs 11:10
AC2365departs 11:30
AC2429departs 11:30
AC855departs 12:05
AC857departs 14:10

If AC859 is cancelled, these are the other Air Canada nonstop flights from London to Toronto on the same day, with scheduled departure times in LHR local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How AC859 actually runs

Pro Flight Search has tracked every published board update for AC859 across the LHR and YYZ boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 14 confirmed landings · 13/14 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 AC859 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-29LHR 18:00YYZ 22:05 21:26 (−39)
10-28LHR 18:00 18:19 (+19)YYZ 22:05 21:26 (−39)
10-27LHR 18:00 18:20 (+20)YYZ 22:05 21:36 (−29)
10-26LHR 18:00 18:30 (+30)YYZ 22:05 21:56 (−9)
10-25LHR 18:00 18:17 (+17)YYZ 22:05 21:59 (−6)
10-24LHR 17:40 18:01 (+21)YYZ 20:30 20:15 (−15)
10-23LHR 17:40 18:23 (+43)YYZ 20:30 20:38 (+8)
10-22LHR 17:40 18:23 (+43)YYZ 20:30 20:36 (+6)
10-21LHR 17:40 18:05 (+25)YYZ 20:30 20:22 (−8)
10-20LHR 17:40 18:40 (+60)YYZ 20:30 20:55 (+25)
10-19CANCELLED
10-18LHR 17:40 18:16 (+36)YYZ 20:30 (+0)
10-17CANCELLED
10-16CANCELLED
10-15LHR 17:40 18:07 (+27)YYZ 20:30 20:32 (+2)

Aircraft

Recent tails: C-FIUL, C-FIUW, C-FITW, C-FIVS.

Board clocks recorded as LHR and YYZ published them.

Planning around AC859? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: AC859 London to Toronto on-time performance, measured from the LHR and YYZ airport boards.

Canonical URL
https://proflightsearch.com/flight/AC859
How we measure this →