AA 3879 then AA 1805 at Phoenix
Memphis → Phoenix → Austin
Timetable, Phoenix time
09:18AA 3879 from Memphis at the gate
20:39AA 1805 to Austin leaves the gate
11 h 21 apart on the timetable
The last days
AA 3879 and AA 1805 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.