CZ 435 then AA 3462 at O'Hare
Anchorage → Chicago → Hilton Head
Timetable, Chicago time
15:58CZ 435 from Anchorage at the gate
10:00AA 3462 to Hilton Head leaves the gate
18 h 02 apart on the timetable, overnight
AA 3462 leaves 18 h 02 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.