AA 3274 then ET 3511 at O'Hare
Fort Lauderdale → Chicago → Muscat
Timetable, Chicago time
12:29AA 3274 from Fort Lauderdale at the gate
09:05ET 3511 to Muscat leaves the gate
20 h 36 apart on the timetable, overnight
ET 3511 leaves 20 h 36 after AA 3274 arrives on the timetable: more than half a day, so not a connection we count.