AA 6471 then QF 7552 at O'Hare
Dayton → Chicago → Los Angeles
Timetable, Chicago time
19:42AA 6471 from Dayton at the gate
18:50QF 7552 to Los Angeles leaves the gate
23 h 08 apart on the timetable, overnight
QF 7552 leaves 23 h 08 after AA 6471 arrives on the timetable: more than half a day, so not a connection we count.