UA 3501 then AA 2305 at O'Hare
Kansas City → Chicago → Washington National
Timetable, Chicago time
17:05UA 3501 from Kansas City at the gate
12:59AA 2305 to Washington National leaves the gate
19 h 54 apart on the timetable, overnight
AA 2305 leaves 19 h 54 after UA 3501 arrives on the timetable: more than half a day, so not a connection we count.