FR 8393 then OS 406 at Barcelona
Budapest → Barcelona → Vienna
Timetable, Barcelona time
00:50FR 8393 from Budapest at the gate
20:30OS 406 to Vienna leaves the gate
19 h 40 apart on the timetable
OS 406 leaves 19 h 40 after FR 8393 arrives on the timetable: more than half a day, so not a connection we count.