AA 2353 then CI 5239 at O'Hare
Boise → Chicago → Anchorage
Timetable, Chicago time
20:11AA 2353 from Boise at the gate
16:50CI 5239 to Anchorage leaves the gate
20 h 39 apart on the timetable, overnight
CI 5239 leaves 20 h 39 after AA 2353 arrives on the timetable: more than half a day, so not a connection we count.