UA 5575 then ET 3511 at O'Hare
Cincinnati Northern Kentucky → Chicago → Muscat
Timetable, Chicago time
18:43UA 5575 from Cincinnati Northern Kentucky at the gate
09:05ET 3511 to Muscat leaves the gate
14 h 22 apart on the timetable, overnight
ET 3511 leaves 14 h 22 after UA 5575 arrives on the timetable: more than half a day, so not a connection we count.