UA8477 DetroitDTW · 14:00 MontréalYUL
UA8477 by United Airlines flies from Detroit (DTW) to Montréal (YUL) for the Tue, Sep 8 departure.
departs DTW · on schedule
board checked 29m ago · checking again in 45s
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 operation2 cancelled · 9 operations tracked
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.
How UA8477 actually runs
Pro Flight Search has tracked every published board update for UA8477 across the DTW and YUL boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 7 confirmed departures · 7/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA8477 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as DTW and YUL published them.
Planning around UA8477? 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 — UA8477 Detroit to Montréal on-time performance, measured from the DTW and YUL airport boards.
https://proflightsearch.com/flight/UA8477
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