AA 2079 then AA 457 at Miami
Phoenix → Miami → San Juan
Timetable, Miami time
06:32AA 2079 from Phoenix at the gate
13:00AA 457 to San Juan leaves the gate
6 h 28 apart on the timetable
The last days
AA 2079 and AA 457 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.