CX 80 then UA 4481 at O'Hare
Anchorage → Chicago → Tulsa
Timetable, Chicago time
19:15CX 80 from Anchorage at the gate
15:35UA 4481 to Tulsa leaves the gate
20 h 20 apart on the timetable, overnight
UA 4481 leaves 20 h 20 after CX 80 arrives on the timetable: more than half a day, so not a connection we count.