BA 1372 then FR 7542 at Manchester
London Heathrow → Manchester → Barcelona
Timetable, Manchester time
16:25BA 1372 from London Heathrow at the gate
07:40FR 7542 to Barcelona leaves the gate
15 h 15 apart on the timetable, overnight
FR 7542 leaves 15 h 15 after BA 1372 arrives on the timetable: more than half a day, so not a connection we count.