UA 762 then ET 3511 at O'Hare
Burlington (BTV) → Chicago → Muscat
Timetable, Chicago time
10:45UA 762 from Burlington (BTV) at the gate
09:05ET 3511 to Muscat leaves the gate
22 h 20 apart on the timetable, overnight
ET 3511 leaves 22 h 20 after UA 762 arrives on the timetable: more than half a day, so not a connection we count.