DL 4903 then K4 810 at O'Hare
New York JFK → Chicago → Anchorage
Timetable, Chicago time
09:27DL 4903 from New York JFK at the gate
04:00K4 810 to Anchorage leaves the gate
18 h 33 apart on the timetable, overnight
K4 810 leaves 18 h 33 after DL 4903 arrives on the timetable: more than half a day, so not a connection we count.