SK 7 then SK 722 at Arlanda
Lulea → Stockholm → Helsinki
Timetable, Stockholm time
20:25SK 7 from Lulea at the gate
15:30SK 722 to Helsinki leaves the gate
19 h 05 apart on the timetable, overnight
SK 722 leaves 19 h 05 after SK 7 arrives on the timetable: more than half a day, so not a connection we count.