CV 12 then UA 4481 at O'Hare
Anchorage → Chicago → Tulsa
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
15:35UA 4481 to Tulsa leaves the gate
20 h 24 apart on the timetable, overnight
UA 4481 leaves 20 h 24 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.