AA 5159 then AA 3119 at Charlotte
Knoxville → Charlotte → Louisville
Timetable, Charlotte time
18:15AA 5159 from Knoxville at the gate
21:48AA 3119 to Louisville leaves the gate
3 h 33 apart on the timetable
The last days
AA 5159 and AA 3119 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.