AA 4454 then FX 1247 at O'Hare
Indianapolis → Chicago → Memphis
Timetable, Chicago time
06:00AA 4454 from Indianapolis at the gate
22:50FX 1247 to Memphis leaves the gate
16 h 50 apart on the timetable
FX 1247 leaves 16 h 50 after AA 4454 arrives on the timetable: more than half a day, so not a connection we count.