AA 4740 then ET 3511 at O'Hare
Norfolk → Chicago → Muscat
Timetable, Chicago time
19:55AA 4740 from Norfolk at the gate
09:05ET 3511 to Muscat leaves the gate
13 h 10 apart on the timetable, overnight
ET 3511 leaves 13 h 10 after AA 4740 arrives on the timetable: more than half a day, so not a connection we count.