AA 670 then AA 1974 at DFW
Austin → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
11:35AA 670 from Austin at the gate
06:12AA 1974 to Chicago O'Hare leaves the gate
18 h 37 apart on the timetable, overnight
AA 1974 leaves 18 h 37 after AA 670 arrives on the timetable: more than half a day, so not a connection we count.