PU 502 then IB 1137 at Madrid
Buenos Aires → Madrid → Santiago de Compostela
Timetable, Madrid time
06:30PU 502 from Buenos Aires at the gate
19:40IB 1137 to Santiago de Compostela leaves the gatealso LA 1841, AY 5605, VY 5735, AV 6122, QR 6963, BA 7216, PC 7737
13 h 10 apart on the timetable
IB 1137 leaves 13 h 10 after PU 502 arrives on the timetable: more than half a day, so not a connection we count.