DY 5502 then AY 814 at Arlanda
Barcelona → Stockholm → Helsinki
Timetable, Stockholm time
18:25DY 5502 from Barcelona at the gate
16:55AY 814 to Helsinki leaves the gate
22 h 30 apart on the timetable, overnight
AY 814 leaves 22 h 30 after DY 5502 arrives on the timetable: more than half a day, so not a connection we count.