FR 677 then FR 8660 at Dublin
Cardiff → Dublin → Rovaniemi
Timetable, Dublin time
00:50FR 677 from Cardiff at the gate
17:25FR 8660 to Rovaniemi leaves the gate
16 h 35 apart on the timetable
FR 8660 leaves 16 h 35 after FR 677 arrives on the timetable: more than half a day, so not a connection we count.