AA 2576 then ET 3511 at O'Hare
Charlotte → Chicago → Muscat
Timetable, Chicago time
19:36AA 2576 from Charlotte at the gate
09:05ET 3511 to Muscat leaves the gate
13 h 29 apart on the timetable, overnight
ET 3511 leaves 13 h 29 after AA 2576 arrives on the timetable: more than half a day, so not a connection we count.