DL 2755 then DL 2193 at Atlanta
Norfolk → Atlanta → Columbia
Timetable, Atlanta time
15:30DL 2755 from Norfolk at the gate
17:33DL 2193 to Columbia leaves the gate
2 h 03 apart on the timetable
The last days
DL 2755 and DL 2193 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.