AA 3647 then AA 1974 at DFW
Abilene → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
06:14AA 3647 from Abilene at the gate
06:12AA 1974 to Chicago O'Hare leaves the gate
23 h 58 apart on the timetable, overnight
AA 1974 leaves 23 h 58 after AA 3647 arrives on the timetable: more than half a day, so not a connection we count.