FR 689 then IB 833 at Madrid
Vienna → Madrid → Athens
Timetable, Madrid time
19:00FR 689 from Vienna at the gate
10:35IB 833 to Athens leaves the gatealso VY 5174, AA 8611
15 h 35 apart on the timetable, overnight
IB 833 leaves 15 h 35 after FR 689 arrives on the timetable: more than half a day, so not a connection we count.