BT 153 then SK 4438 at Oslo
Riga → Oslo → Tromso
Timetable, Oslo time
19:45BT 153 from Riga at the gate
19:35SK 4438 to Tromso leaves the gate
23 h 50 apart on the timetable, overnight
SK 4438 leaves 23 h 50 after BT 153 arrives on the timetable: more than half a day, so not a connection we count.