FR 5078 then FR 6875 at Dublin
Tarbes → Dublin → Barcelona
Timetable, Dublin time
15:00FR 5078 from Tarbes at the gate
06:40FR 6875 to Barcelona leaves the gate
15 h 40 apart on the timetable, overnight
FR 6875 leaves 15 h 40 after FR 5078 arrives on the timetable: more than half a day, so not a connection we count.