AA 1238 then ET 3511 at O'Hare
Fort Myers → Chicago → Muscat
Timetable, Chicago time
19:46AA 1238 from Fort Myers at the gate
09:05ET 3511 to Muscat leaves the gate
13 h 19 apart on the timetable, overnight
ET 3511 leaves 13 h 19 after AA 1238 arrives on the timetable: more than half a day, so not a connection we count.