AA 2621 then AA 1974 at DFW
Milwaukee → Dallas-Fort Worth → Chicago O'Hare
Timetable, Dallas-Fort Worth time
09:57AA 2621 from Milwaukee at the gate
06:12AA 1974 to Chicago O'Hare leaves the gate
20 h 15 apart on the timetable, overnight
AA 1974 leaves 20 h 15 after AA 2621 arrives on the timetable: more than half a day, so not a connection we count.