UA 5424 then AA 1349 at O'Hare
Washington National → Chicago → Los Angeles
Timetable, Chicago time
14:33UA 5424 from Washington National at the gate
13:40AA 1349 to Los Angeles leaves the gate
23 h 07 apart on the timetable, overnight
AA 1349 leaves 23 h 07 after UA 5424 arrives on the timetable: more than half a day, so not a connection we count.