BA 1368 then FR 7542 at Manchester
London Heathrow → Manchester → Barcelona
Timetable, Manchester time
14:00BA 1368 from London Heathrow at the gate
07:40FR 7542 to Barcelona leaves the gate
17 h 40 apart on the timetable, overnight
FR 7542 leaves 17 h 40 after BA 1368 arrives on the timetable: more than half a day, so not a connection we count.