EI 123 then G7 3376 at O'Hare
Dublin → Chicago → St Louis
Timetable, Chicago time
14:10EI 123 from Dublin at the gate
11:00G7 3376 to St Louis leaves the gate
20 h 50 apart on the timetable, overnight
G7 3376 leaves 20 h 50 after EI 123 arrives on the timetable: more than half a day, so not a connection we count.