AA 618 then AA 6238 at DFW
Chicago O'Hare → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
14:53AA 618 from Chicago O'Hare at the gate
08:25AA 6238 to Amarillo leaves the gate
17 h 32 apart on the timetable, overnight
AA 6238 leaves 17 h 32 after AA 618 arrives on the timetable: more than half a day, so not a connection we count.