DL 5799 then DL 2194 at Boston
Charlotte → Boston → Nashville
Timetable, Boston time
14:16DL 5799 from Charlotte at the gate
14:50DL 2194 to Nashville leaves the gate
34 min apart on the timetable
The last days
DL 5799 and DL 2194 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.