AA 3894 then ET 3511 at O'Hare
Cincinnati Northern Kentucky → Chicago → Muscat
Timetable, Chicago time
09:32AA 3894 from Cincinnati Northern Kentucky at the gate
09:05ET 3511 to Muscat leaves the gate
23 h 33 apart on the timetable, overnight
ET 3511 leaves 23 h 33 after AA 3894 arrives on the timetable: more than half a day, so not a connection we count.