9K 212 then 9K 5111 at Boston
Islip → Boston → Nantucket
Timetable, Boston time
11:199K 212 from Islip at the gate
14:309K 5111 to Nantucket leaves the gate
3 h 11 apart on the timetable
The last days
9K 212 and 9K 5111 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.