UA4491 New YorkEWR · 13:40 NantucketACK
UA4491 by United Airlines flies from New York (EWR) to Nantucket (ACK) for the Sat, Sep 5 departure.
en route from EWR to ACK
board checked 234m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:33 · typical taxi-out at EWR ≈ 10.8 min.
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 operation1 cancelled · 14 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other New York to Nantucket flights today
same route · United AirlinesIf UA4491 is cancelled, this is the other United Airlines nonstop flight from New York to Nantucket on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4491 actually runs
Pro Flight Search has tracked every published board update for UA4491 across the EWR and ACK boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 13 confirmed departures · 11/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4491 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 EWR and ACK published them.
Planning around UA4491? 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 — UA4491 New York to Nantucket on-time performance, measured from the EWR and ACK airport boards.
https://proflightsearch.com/flight/UA4491
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