DL 1147 then FX 1388 at O'Hare
Atlanta → Chicago → Memphis
Timetable, Chicago time
09:22DL 1147 from Atlanta at the gate
22:00FX 1388 to Memphis leaves the gate
12 h 38 apart on the timetable
FX 1388 leaves 12 h 38 after DL 1147 arrives on the timetable: more than half a day, so not a connection we count.