FR 5204 then FR 30 at Dublin
Sofia → Dublin → London Stansted
Timetable, Dublin time
16:15FR 5204 from Sofia at the gate
14:30FR 30 to London Stansted leaves the gate
22 h 15 apart on the timetable, overnight
FR 30 leaves 22 h 15 after FR 5204 arrives on the timetable: more than half a day, so not a connection we count.