AA 5375 then AA 1284 at Charlotte
Cleveland → Charlotte → Denver
Timetable, Charlotte time
10:05AA 5375 from Cleveland at the gate
18:33AA 1284 to Denver leaves the gate
8 h 28 apart on the timetable
The last days
AA 5375 and AA 1284 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.