XZ 2426 then BA 557 at Fiumicino
Genova → Rome → London Heathrow
Timetable, Rome time
20:00XZ 2426 from Genova at the gate
17:55BA 557 to London Heathrow leaves the gate
21 h 55 apart on the timetable, overnight
BA 557 leaves 21 h 55 after XZ 2426 arrives on the timetable: more than half a day, so not a connection we count.