Thanks for your answer.
Alright, I understand the airline is great, so is the atmosphere and the surroundings of Bergen, no doubt about the friendly people in Norway. But it's maybe not a good idea to leave a job in France better paid than this job which is in Norway, in a country 30 to 40% more expensive.. I would go for the same salary I have right now, but relocating there for less money in a more expensive country is maybe not the smartest move..