BA 893 then VY 7643 at Heathrow
Sofia → London → Barcelona
Timetable, London time
22:30BA 893 from Sofia at the gate
20:50VY 7643 to Barcelona leaves the gate
22 h 20 apart on the timetable, overnight
VY 7643 leaves 22 h 20 after BA 893 arrives on the timetable: more than half a day, so not a connection we count.