UX 42 then LA 1546 at Madrid
Buenos Aires → Madrid → Rome
Timetable, Madrid time
02:00UX 42 from Buenos Aires at the gate
17:05LA 1546 to Rome leaves the gatealso VY 5236, QR 8010, AA 8637
15 h 05 apart on the timetable
LA 1546 leaves 15 h 05 after UX 42 arrives on the timetable: more than half a day, so not a connection we count.