5X 5602 then AC 8906 at O'Hare
Louisville → Chicago → Toronto Pearson
Timetable, Chicago time
18:075X 5602 from Louisville at the gate
16:35AC 8906 to Toronto Pearson leaves the gate
22 h 28 apart on the timetable, overnight
AC 8906 leaves 22 h 28 after 5X 5602 arrives on the timetable: more than half a day, so not a connection we count.