Norwegian is a different breed than the main stream LOCO carriers since it is possible to get transit tickets and it is therefore possible to get ticket from MAN to 85 of 105 destinations Norwegian fly
Yes this is one thing I like about Norwegian. I had to research LGW-Oulu for someone and Norwegian was the main option (pretty sure it was via OSL but memory fails me).
If only easyjet or Ryanir, with such an extensive covering of Europe from various bases could do this.