AC8421 Fort McMurrayYMM CalgaryYYC · 13:35
AC8421 by Air Canada flies from Fort McMurray (YMM) to Calgary (YYC) for the Wed, Sep 9 departure.
arrival expected at YYC · on schedule
board checked 32m ago · checking again in 45s
Where the minutes go
last 5 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 −10 min · 1 cancelled · 5 operations tracked
The route today
live boardsHow AC8421 actually runs
Pro Flight Search has tracked every published board update for AC8421 across the YMM and YYC boards: schedule changes, gate pushes and actual clocks. Usually lands ~10 min early. Based on 4 confirmed landings · 3/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how AC8421 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: CGJZG, CGGNY, CGGMQ, CGJZX.
Board clocks recorded as YMM and YYC published them.
Planning around AC8421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AC8421 Fort McMurray to Calgary on-time performance, measured from the YMM and YYC airport boards.
https://proflightsearch.com/flight/AC8421
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