FR 3008 then IB 721 at Madrid
Milan → Madrid → London Heathrow
Timetable, Madrid time
19:55FR 3008 from Milan at the gate
15:50IB 721 to London Heathrow leaves the gatealso LA 1701, VY 5176, DT 6160, QR 6906, BA 7068, AA 8652
19 h 55 apart on the timetable, overnight
IB 721 leaves 19 h 55 after FR 3008 arrives on the timetable: more than half a day, so not a connection we count.