FR 5694 then FR 255 at Dublin
Tallinn → Dublin → London Stansted
Timetable, Dublin time
14:55FR 5694 from Tallinn at the gate
09:00FR 255 to London Stansted leaves the gate
18 h 05 apart on the timetable, overnight
FR 255 leaves 18 h 05 after FR 5694 arrives on the timetable: more than half a day, so not a connection we count.