EI 3403 then FR 6875 at Dublin
Donegal → Dublin → Barcelona
Timetable, Dublin time
15:30EI 3403 from Donegal at the gate
06:40FR 6875 to Barcelona leaves the gate
15 h 10 apart on the timetable, overnight
FR 6875 leaves 15 h 10 after EI 3403 arrives on the timetable: more than half a day, so not a connection we count.