AA 9828 then K4 221 at O'Hare
South Bend → Chicago → Cincinnati Northern Kentucky
Timetable, Chicago time
17:25AA 9828 from South Bend at the gate
16:20K4 221 to Cincinnati Northern Kentucky leaves the gate
22 h 55 apart on the timetable, overnight
K4 221 leaves 22 h 55 after AA 9828 arrives on the timetable: more than half a day, so not a connection we count.