UA 5192 then AA 3610 at O'Hare
Jacksonville → Chicago → Toronto Pearson
Timetable, Chicago time
17:30UA 5192 from Jacksonville at the gate
14:50AA 3610 to Toronto Pearson leaves the gate
21 h 20 apart on the timetable, overnight
AA 3610 leaves 21 h 20 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.