9K5431 BostonBOS · 18:50 NantucketACK
9K5431 by Cape Air flies from Boston (BOS) to Nantucket (ACK) for the Thu, Nov 5 departure.
departs BOS · on schedule
board checked 34m ago · checking again in 45s
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 boardsTomorrow at Boston
ForecastFri 6 Nov, local date
- 97% chance of rain
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Boston to Nantucket flights today
same route · Cape AirIf 9K5431 is cancelled, these are the other Cape Air nonstop flights from Boston to Nantucket on the same day, with scheduled departure times in BOS 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 9K5431 actually runs
Pro Flight Search has tracked every published board update for 9K5431 across the BOS and ACK boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: departed -8 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how 9K5431 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 BOS and ACK published them.
Planning around 9K5431? 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: 9K5431 Boston to Nantucket on-time performance, measured from the BOS and ACK airport boards.
https://proflightsearch.com/flight/9K5431
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