9K 210 then 9K 5151 at Boston
Islip → Boston → Nantucket
Timetable, Boston time
09:049K 210 from Islip at the gate
14:189K 5151 to Nantucket leaves the gate
5 h 14 apart on the timetable
The last days
9K 210 and 9K 5151 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.