AA 1340 then WN 1774 at Miami
Memphis → Miami → Austin
Timetable, Miami time
09:03AA 1340 from Memphis at the gate
12:55WN 1774 to Austin leaves the gate
3 h 52 apart on the timetable
The last days
AA 1340 and WN 1774 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.