4B865 MassenaMSS BostonBOS · 17:50
4B865 by Boutique Air flies from Massena (MSS) to Boston (BOS) for the Mon, Sep 21 departure.
arrival expected at BOS · 38 min late
board checked 40m ago · checking again in 45s
The route today
live boardsHow 4B865 actually runs
Pro Flight Search has tracked every published board update for 4B865 across the MSS and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +85 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how 4B865 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 MSS and BOS published them.
Planning around 4B865? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — 4B865 Massena to Boston on-time performance, measured from the MSS and BOS airport boards.
https://proflightsearch.com/flight/4B865
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