DL 1846 then DL 5097 at Atlanta
Newark → Atlanta → Columbia
Timetable, Atlanta time
14:26DL 1846 from Newark at the gate
18:00DL 5097 to Columbia leaves the gate
3 h 34 apart on the timetable
The last days
DL 1846 and DL 5097 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.