AA 2263 then AA 4104 at Phoenix
Miami → Phoenix → Denver
Timetable, Phoenix time
10:21AA 2263 from Miami at the gate
12:15AA 4104 to Denver leaves the gate
1 h 54 apart on the timetable
The last days
AA 2263 and AA 4104 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.