AA 250 then G7 3376 at O'Hare
Mexico City → Chicago → St Louis
Timetable, Chicago time
18:59AA 250 from Mexico City at the gate
11:00G7 3376 to St Louis leaves the gate
16 h 01 apart on the timetable, overnight
G7 3376 leaves 16 h 01 after AA 250 arrives on the timetable: more than half a day, so not a connection we count.