TO 4756 then BA 481 at Barcelona
Paris Orly → Barcelona → London Heathrow
Timetable, Barcelona time
18:40TO 4756 from Paris Orly at the gate
14:45BA 481 to London Heathrow leaves the gatealso IB 3663, AA 6819, VY 9559, QR 9800
20 h 05 apart on the timetable, overnight
BA 481 leaves 20 h 05 after TO 4756 arrives on the timetable: more than half a day, so not a connection we count.