AA 1200 then BR 658 at O'Hare
Washington National → Chicago → Toronto Pearson
Timetable, Chicago time
11:34AA 1200 from Washington National at the gate
11:30BR 658 to Toronto Pearson leaves the gate
23 h 56 apart on the timetable, overnight
BR 658 leaves 23 h 56 after AA 1200 arrives on the timetable: more than half a day, so not a connection we count.