AA 2191 then AA 1788 at Miami
Charlotte → Miami → Dallas-Fort Worth
Timetable, Miami time
09:09AA 2191 from Charlotte at the gate
12:15AA 1788 to Dallas-Fort Worth leaves the gate
3 h 06 apart on the timetable
The last days
AA 2191 and AA 1788 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.