AA 913 then JA 9257 at Bogotá
Miami → Bogota → Medellín
Timetable, Bogota time
13:05AA 913 from Miami at the gate
17:20JA 9257 to Medellín leaves the gate
4 h 15 apart on the timetable
The last days
AA 913 and JA 9257 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.