CV 12 then UA 3395 at O'Hare
Anchorage → Chicago → St Louis
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
13:00UA 3395 to St Louis leaves the gate
17 h 49 apart on the timetable, overnight
UA 3395 leaves 17 h 49 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.