F9 4307 then ET 3511 at O'Hare
Baltimore → Chicago → Muscat
Timetable, Chicago time
11:23F9 4307 from Baltimore at the gate
09:05ET 3511 to Muscat leaves the gate
21 h 42 apart on the timetable, overnight
ET 3511 leaves 21 h 42 after F9 4307 arrives on the timetable: more than half a day, so not a connection we count.