IB 796 then CX 1751 at Madrid
Vienna → Madrid → Buenos Aires
Timetable, Madrid time
22:55IB 796 from Vienna at the gatealso LA 1637, VY 5077, AA 8842
12:20CX 1751 to Buenos Aires leaves the gatealso BA 4255, AY 5375
13 h 25 apart on the timetable, overnight
CX 1751 leaves 13 h 25 after IB 796 arrives on the timetable: more than half a day, so not a connection we count.