AA 4485 then QF 7552 at O'Hare
Dayton → Chicago → Los Angeles
Timetable, Chicago time
19:18AA 4485 from Dayton at the gate
18:50QF 7552 to Los Angeles leaves the gate
23 h 32 apart on the timetable, overnight
QF 7552 leaves 23 h 32 after AA 4485 arrives on the timetable: more than half a day, so not a connection we count.