K4 221 then AA 3544 at O'Hare
Anchorage → Chicago → Detroit
Timetable, Chicago time
19:17K4 221 from Anchorage at the gate
13:28AA 3544 to Detroit leaves the gate
18 h 11 apart on the timetable, overnight
AA 3544 leaves 18 h 11 after K4 221 arrives on the timetable: more than half a day, so not a connection we count.