AA 3100 then AA 3990 at DFW
Louisville → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
08:50AA 3100 from Louisville at the gate
21:20AA 3990 to Amarillo leaves the gate
12 h 30 apart on the timetable
AA 3990 leaves 12 h 30 after AA 3100 arrives on the timetable: more than half a day, so not a connection we count.