K4 537 then UA 2202 at O'Hare
Anchorage → Chicago → Washington
Timetable, Chicago time
23:39K4 537 from Anchorage at the gate
18:07UA 2202 to Washington leaves the gate
18 h 28 apart on the timetable, overnight
UA 2202 leaves 18 h 28 after K4 537 arrives on the timetable: more than half a day, so not a connection we count.