AA 4976 then AA 6238 at DFW
Lincoln → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
16:56AA 4976 from Lincoln at the gate
08:25AA 6238 to Amarillo leaves the gate
15 h 29 apart on the timetable, overnight
AA 6238 leaves 15 h 29 after AA 4976 arrives on the timetable: more than half a day, so not a connection we count.