UA 2420 then CA 1020 at O'Hare
Fort Myers → Chicago → Shanghai
Timetable, Chicago time
20:37UA 2420 from Fort Myers at the gate
09:10CA 1020 to Shanghai leaves the gate
12 h 33 apart on the timetable, overnight
CA 1020 leaves 12 h 33 after UA 2420 arrives on the timetable: more than half a day, so not a connection we count.