B6 811 then ET 3511 at O'Hare
Boston → Chicago → Muscat
Timetable, Chicago time
19:17B6 811 from Boston at the gate
09:05ET 3511 to Muscat leaves the gate
13 h 48 apart on the timetable, overnight
ET 3511 leaves 13 h 48 after B6 811 arrives on the timetable: more than half a day, so not a connection we count.