9K5031 BostonBOS · 10:55 NantucketACK
9K5031 by Cape Air flies from Boston (BOS) to Nantucket (ACK) for the Sat, Sep 19 departure.
en route from BOS to ACK
board checked 15m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 10:40 · typical taxi-out at BOS ≈ 10 min.
Where the minutes go
last 4 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 boardsWhen 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 9K5031 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 posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How 9K5031 actually runs
Pro Flight Search has tracked every published board update for 9K5031 across the BOS and ACK boards: schedule changes, gate pushes and actual clocks. Usually departs ~42 min late. Based on 4 confirmed departures · 2/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how 9K5031 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 9K5031? 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 — 9K5031 Boston to Nantucket on-time performance, measured from the BOS and ACK airport boards.
https://proflightsearch.com/flight/9K5031
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