AA 1623 then AA 545 at Charlotte
Denver → Charlotte → Tampa
Timetable, Charlotte time
12:17AA 1623 from Denver at the gate
15:28AA 545 to Tampa leaves the gate
3 h 11 apart on the timetable
The last days
AA 1623 and AA 545 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.