EI 165 then FR 6875 at Dublin
London Heathrow → Dublin → Barcelona
Timetable, Dublin time
15:40EI 165 from London Heathrow at the gate
06:40FR 6875 to Barcelona leaves the gate
15 h apart on the timetable, overnight
FR 6875 leaves 15 h after EI 165 arrives on the timetable: more than half a day, so not a connection we count.