AA 1974 then UA 3306 at Charlotte
Tampa → Charlotte → Rochester
Timetable, Charlotte time
14:00AA 1974 from Tampa at the gate
18:15UA 3306 to Rochester leaves the gate
4 h 15 apart on the timetable
The last days
AA 1974 and UA 3306 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.