Bicycle case/package for flight from Nordkapp,Norwary

Hi Everyone
This is Fu. I got a quiestion for bicycle luggage on flight.
I am cycling to Nordkapp Norway at early August 2017. After the Nordkapp, I will take SAS flight heading to Helsinki with my bicycle. The flight company mentioned my bicycle need to be in a hard case for the flight, and the airport seems not provding those packaging services yet. Need some information about bike packaing experience around Nordkapp area.
Thanks.