AA 725 then G7 3376 at O'Hare
Los Angeles → Chicago → St Louis
Timetable, Chicago time
16:05AA 725 from Los Angeles at the gate
11:00G7 3376 to St Louis leaves the gate
18 h 55 apart on the timetable, overnight
G7 3376 leaves 18 h 55 after AA 725 arrives on the timetable: more than half a day, so not a connection we count.