F9 2791 then FX 1388 at O'Hare
Orlando → Chicago → Memphis
Timetable, Chicago time
08:46F9 2791 from Orlando at the gate
22:00FX 1388 to Memphis leaves the gate
13 h 14 apart on the timetable
FX 1388 leaves 13 h 14 after F9 2791 arrives on the timetable: more than half a day, so not a connection we count.