AA 1408 then F9 3059 at Miami
Phoenix → Miami → Atlanta
Timetable, Miami time
05:10AA 1408 from Phoenix at the gate
11:45F9 3059 to Atlanta leaves the gate
6 h 35 apart on the timetable
The last days
AA 1408 and F9 3059 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.