F9 2791 then CA 3174 at O'Hare
Orlando → Chicago → Guangzhou
Timetable, Chicago time
17:07F9 2791 from Orlando at the gate
13:40CA 3174 to Guangzhou leaves the gate
20 h 33 apart on the timetable, overnight
CA 3174 leaves 20 h 33 after F9 2791 arrives on the timetable: more than half a day, so not a connection we count.