UA 3501 then AA 2700 at O'Hare
Kansas City → Chicago → Washington National
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
08:52AA 2700 to Washington National leaves the gate
15 h 47 apart on the timetable, overnight
AA 2700 leaves 15 h 47 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.