TS521 TorontoYYZ · 18:00 MontréalYUL · 19:20
TS521 by Air Transat flies from Toronto (YYZ) to Montréal (YUL).
scheduled from YYZ
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by YUL (Montréal), currently flying MVFR (marginal visual). 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 Toronto to Montréal flights today
same route · Air TransatIf TS521 is cancelled, these are the other Air Transat nonstop flights from Toronto to Montréal on the same day, with scheduled departure times in YYZ local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How TS521 actually runs
Pro Flight Search has tracked every published board update for TS521 across the YYZ and YUL boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left right on schedule but landed about 14 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how TS521 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-GUBA.
Board clocks recorded as YYZ and YUL published them.
Planning around TS521? 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 — TS521 Toronto to Montréal on-time performance, measured from the YYZ and YUL airport boards.
https://proflightsearch.com/flight/TS521
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