DL 862 then DL 1572 at Boston
Atlanta → Boston → Orlando
Timetable, Boston time
13:44DL 862 from Atlanta at the gate
17:40DL 1572 to Orlando leaves the gate
3 h 56 apart on the timetable
The last days
DL 862 and DL 1572 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.