FR 183 then OS 7 at Vienna
Sofia → Vienna → Bangkok
Timetable, Vienna time
11:15FR 183 from Sofia at the gate
23:25OS 7 to Bangkok leaves the gate
12 h 10 apart on the timetable
OS 7 leaves 12 h 10 after FR 183 arrives on the timetable: more than half a day, so not a connection we count.