DL 3176 then DL 1071 at Atlanta
Mobile → Atlanta → Pittsburgh
Timetable, Atlanta time
14:24DL 3176 from Mobile at the gate
19:10DL 1071 to Pittsburgh leaves the gate
4 h 46 apart on the timetable
The last days
DL 3176 and DL 1071 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.