CZ 435 then DL 2039 at O'Hare
Anchorage → Chicago → Detroit
Timetable, Chicago time
15:58CZ 435 from Anchorage at the gate
07:05DL 2039 to Detroit leaves the gate
15 h 07 apart on the timetable, overnight
DL 2039 leaves 15 h 07 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.