DL 8844 then DL 5647 at Boston
Orlando → Boston → Savannah
Timetable, Boston time
10:59DL 8844 from Orlando at the gate
11:06DL 5647 to Savannah leaves the gate
7 min apart on the timetable
The last days
DL 8844 and DL 5647 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.