BT 151 then DY 380 at Oslo
Riga → Oslo → Tromso
Timetable, Oslo time
07:40BT 151 from Riga at the gate
16:25DY 380 to Tromso leaves the gate
8 h 45 apart on the timetable
The last days
BT 151 and DY 380 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.