AA 3525 then AA 1484 at DFW
Columbia Regional → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
08:50AA 3525 from Columbia Regional at the gate
21:00AA 1484 to Nashville leaves the gate
12 h 10 apart on the timetable
AA 1484 leaves 12 h 10 after AA 3525 arrives on the timetable: more than half a day, so not a connection we count.