CV 12 then UA 4393 at O'Hare
Anchorage → Chicago → Tulsa
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
12:45UA 4393 to Tulsa leaves the gate
17 h 34 apart on the timetable, overnight
UA 4393 leaves 17 h 34 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.