EI 3391 then FR 288 at Dublin
Leeds → Dublin → London Stansted
Timetable, Dublin time
09:50EI 3391 from Leeds at the gate
21:55FR 288 to London Stansted leaves the gate
12 h 05 apart on the timetable
FR 288 leaves 12 h 05 after EI 3391 arrives on the timetable: more than half a day, so not a connection we count.