DL 155 then B6 9003 at Boston
Dublin → Boston → New York JFK
Timetable, Boston time
14:09DL 155 from Dublin at the gate
20:25B6 9003 to New York JFK leaves the gate
6 h 16 apart on the timetable
Boston’s board gives an arrival time for only about 59% of its flights, so many days show no gate time.
The last days
DL 155 and B6 9003 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.