DL 1846 then DL 1630 at Atlanta
Newark → Atlanta → Savannah
Timetable, Atlanta time
14:26DL 1846 from Newark at the gate
18:23DL 1630 to Savannah leaves the gate
3 h 57 apart on the timetable
The last days
DL 1846 and DL 1630 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.