Pilot37 tuonopepper I did two back to backs last month HEL-AGP-HEL, each one a week apart (this was around a holiday in CPH and ARN in between!) which can price as low as $600-700 round trip.

If you start and end in OSL/CPH/ARN it can be about the same price as starting in HEL for 40tp extra. The seats aren’t that comfortable (Club Europe equivalent) but loads were light and you can pack the flights in. You might be able to get to 500 easily with a few extra business class segments like HEL-OUL-HEL as well as one AGP B2B.