UA 602 then ET 3511 at O'Hare
Miami → Chicago → Muscat
Timetable, Chicago time
19:04UA 602 from Miami at the gate
09:05ET 3511 to Muscat leaves the gate
14 h 01 apart on the timetable, overnight
ET 3511 leaves 14 h 01 after UA 602 arrives on the timetable: more than half a day, so not a connection we count.