K4 221 then UA 5877 at O'Hare
Anchorage → Chicago → Omaha
Timetable, Chicago time
19:17K4 221 from Anchorage at the gate
10:29UA 5877 to Omaha leaves the gate
15 h 12 apart on the timetable, overnight
UA 5877 leaves 15 h 12 after K4 221 arrives on the timetable: more than half a day, so not a connection we count.