WN 3774 then AA 3104 at Miami
Austin → Miami → Charlotte
Timetable, Miami time
13:00WN 3774 from Austin at the gate
13:40AA 3104 to Charlotte leaves the gate
40 min apart on the timetable
The last days
WN 3774 and AA 3104 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.