EI 661 then FR 5203 at Dublin
Vienna → Dublin → Sofia
Timetable, Dublin time
13:30EI 661 from Vienna at the gate
11:25FR 5203 to Sofia leaves the gate
21 h 55 apart on the timetable, overnight
FR 5203 leaves 21 h 55 after EI 661 arrives on the timetable: more than half a day, so not a connection we count.