LH 2 then UA 3376 at O'Hare
Munich → Chicago → St Louis
Timetable, Chicago time
17:54LH 2 from Munich at the gate
11:00UA 3376 to St Louis leaves the gate
17 h 06 apart on the timetable, overnight
UA 3376 leaves 17 h 06 after LH 2 arrives on the timetable: more than half a day, so not a connection we count.