AA 4029 then AA 6238 at DFW
Lexington → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
17:32AA 4029 from Lexington at the gate
08:25AA 6238 to Amarillo leaves the gate
14 h 53 apart on the timetable, overnight
AA 6238 leaves 14 h 53 after AA 4029 arrives on the timetable: more than half a day, so not a connection we count.