UA 3501 then UA 297 at O'Hare
Kansas City → Chicago → Nashville
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
15:43UA 297 to Nashville leaves the gate
22 h 38 apart on the timetable, overnight
UA 297 leaves 22 h 38 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.