K4 221 then UA 752 at O'Hare
Anchorage → Chicago → Washington National
Timetable, Chicago time
13:41K4 221 from Anchorage at the gate
12:29UA 752 to Washington National leaves the gate
22 h 48 apart on the timetable, overnight
UA 752 leaves 22 h 48 after K4 221 arrives on the timetable: more than half a day, so not a connection we count.