AA 2327 then ET 3511 at O'Hare
Washington National → Chicago → Muscat
Timetable, Chicago time
18:33AA 2327 from Washington National at the gate
09:05ET 3511 to Muscat leaves the gate
14 h 32 apart on the timetable, overnight
ET 3511 leaves 14 h 32 after AA 2327 arrives on the timetable: more than half a day, so not a connection we count.