DL 1716 then AC 8550 at O'Hare
Detroit → Chicago → Toronto (YTZ)
Timetable, Chicago time
13:59DL 1716 from Detroit at the gate
13:55AC 8550 to Toronto (YTZ) leaves the gate
23 h 56 apart on the timetable, overnight
AC 8550 leaves 23 h 56 after DL 1716 arrives on the timetable: more than half a day, so not a connection we count.