K4 551 then UA 786 at O'Hare
Anchorage → Chicago → Raleigh-Durham
Timetable, Chicago time
16:28K4 551 from Anchorage at the gate
12:50UA 786 to Raleigh-Durham leaves the gate
20 h 22 apart on the timetable, overnight
UA 786 leaves 20 h 22 after K4 551 arrives on the timetable: more than half a day, so not a connection we count.