K4 537 then AA 4992 at O'Hare
Anchorage → Chicago → Milwaukee
Timetable, Chicago time
23:39K4 537 from Anchorage at the gate
21:35AA 4992 to Milwaukee leaves the gate
21 h 56 apart on the timetable, overnight
AA 4992 leaves 21 h 56 after K4 537 arrives on the timetable: more than half a day, so not a connection we count.