UA 3501 then AA 5393 at O'Hare
Kansas City → Chicago → Dayton
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
09:19AA 5393 to Dayton leaves the gate
16 h 14 apart on the timetable, overnight
AA 5393 leaves 16 h 14 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.