CV 21 then DL 4917 at O'Hare
Anchorage → Chicago → New York JFK
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
18:00DL 4917 to New York JFK leaves the gate
19 h 33 apart on the timetable, overnight
DL 4917 leaves 19 h 33 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.