CV 12 then UA 1239 at O'Hare
Anchorage → Chicago → Rochester (ROC)
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
13:55UA 1239 to Rochester (ROC) leaves the gate
18 h 44 apart on the timetable, overnight
UA 1239 leaves 18 h 44 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.