AC 8477 then FX 9791 at O'Hare
Montréal → Chicago → Anchorage
Timetable, Chicago time
11:07AC 8477 from Montréal at the gate
04:00FX 9791 to Anchorage leaves the gate
16 h 53 apart on the timetable, overnight
FX 9791 leaves 16 h 53 after AC 8477 arrives on the timetable: more than half a day, so not a connection we count.