FX 988 then ET 3511 at O'Hare
Memphis → Chicago → Muscat
Timetable, Chicago time
18:31FX 988 from Memphis at the gate
09:05ET 3511 to Muscat leaves the gate
14 h 34 apart on the timetable, overnight
ET 3511 leaves 14 h 34 after FX 988 arrives on the timetable: more than half a day, so not a connection we count.