AA 2343 then ET 3511 at O'Hare
San Diego → Chicago → Muscat
Timetable, Chicago time
16:29AA 2343 from San Diego at the gate
09:05ET 3511 to Muscat leaves the gate
16 h 36 apart on the timetable, overnight
ET 3511 leaves 16 h 36 after AA 2343 arrives on the timetable: more than half a day, so not a connection we count.