DL 1029 then DL 1889 at Atlanta
New York JFK → Atlanta → Boston
Timetable, Atlanta time
14:08DL 1029 from New York JFK at the gate
19:20DL 1889 to Boston leaves the gate
5 h 12 apart on the timetable
The last days
DL 1029 and DL 1889 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.