IB 672 then EC 4796 at Madrid
Milan → Madrid → Nantes
Timetable, Madrid time
12:50IB 672 from Milan at the gatealso VY 5277, LA 5422, QR 6520, AA 8662
12:45EC 4796 to Nantes leaves the gate
23 h 55 apart on the timetable, overnight
EC 4796 leaves 23 h 55 after IB 672 arrives on the timetable: more than half a day, so not a connection we count.