FR 2752 then IB 839 at Madrid
Milan → Madrid → Athens
Timetable, Madrid time
21:50FR 2752 from Milan at the gate
19:55IB 839 to Athens leaves the gatealso LA 1829, VY 5465
22 h 05 apart on the timetable, overnight
IB 839 leaves 22 h 05 after FR 2752 arrives on the timetable: more than half a day, so not a connection we count.