FR 5817 then BA 563 at Fiumicino
Bari → Rome → London Heathrow
Timetable, Rome time
17:10FR 5817 from Bari at the gate
08:40BA 563 to London Heathrow leaves the gate
15 h 30 apart on the timetable, overnight
BA 563 leaves 15 h 30 after FR 5817 arrives on the timetable: more than half a day, so not a connection we count.