AA 1869 then AA 4638 at Miami
Houston → Miami → Tampa
Timetable, Miami time
16:55AA 1869 from Houston at the gate
17:51AA 4638 to Tampa leaves the gate
56 min apart on the timetable
The last days
AA 1869 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.