AA 2883 then G7 3376 at O'Hare
Salt Lake City → Chicago → St Louis
Timetable, Chicago time
11:54AA 2883 from Salt Lake City at the gate
11:00G7 3376 to St Louis leaves the gate
23 h 06 apart on the timetable, overnight
G7 3376 leaves 23 h 06 after AA 2883 arrives on the timetable: more than half a day, so not a connection we count.