CZ 435 then AC 8478 at O'Hare
Anchorage → Chicago → Montréal
Timetable, Chicago time
15:58CZ 435 from Anchorage at the gate
07:05AC 8478 to Montréal leaves the gate
15 h 07 apart on the timetable, overnight
AC 8478 leaves 15 h 07 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.