DL 1622 then LF 8154 at O'Hare
Detroit → Chicago → Charlotte
Timetable, Chicago time
07:41DL 1622 from Detroit at the gate
10:05LF 8154 to Charlotte leaves the gate
2 h 24 apart on the timetable
The last days
DL 1622 and LF 8154 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.