AA 1185 then AA 4638 at Miami
Cancún → Miami → Tampa
Timetable, Miami time
14:19AA 1185 from Cancún at the gate
17:51AA 4638 to Tampa leaves the gate
3 h 32 apart on the timetable
The last days
AA 1185 and AA 4638 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.