EI 661 then FR 6921 at Dublin
Vienna → Dublin → Barcelona
Timetable, Dublin time
13:30EI 661 from Vienna at the gate
12:50FR 6921 to Barcelona leaves the gate
23 h 20 apart on the timetable, overnight
FR 6921 leaves 23 h 20 after EI 661 arrives on the timetable: more than half a day, so not a connection we count.