CV 251 then AA 3436 at O'Hare
Anchorage → Chicago → Rochester (ROC)
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
11:55AA 3436 to Rochester (ROC) leaves the gate
16 h 55 apart on the timetable, overnight
AA 3436 leaves 16 h 55 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.