5X 5602 then AA 4993 at O'Hare
Louisville → Chicago → Milwaukee
Timetable, Chicago time
18:075X 5602 from Louisville at the gate
17:24AA 4993 to Milwaukee leaves the gate
23 h 17 apart on the timetable, overnight
AA 4993 leaves 23 h 17 after 5X 5602 arrives on the timetable: more than half a day, so not a connection we count.