CM 228 then UA 3376 at O'Hare
Tocumen → Chicago → St Louis
Timetable, Chicago time
12:46CM 228 from Tocumen at the gate
11:00UA 3376 to St Louis leaves the gate
22 h 14 apart on the timetable, overnight
UA 3376 leaves 22 h 14 after CM 228 arrives on the timetable: more than half a day, so not a connection we count.