WN 548 then AA 3060 at Charlotte
Dallas → Charlotte → St Louis
Timetable, Charlotte time
10:55WN 548 from Dallas at the gate
14:55AA 3060 to St Louis leaves the gate
4 h apart on the timetable
The last days
WN 548 and AA 3060 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.