I used Greenlandair (now Air Greenland) on the Kangerlussuaq to Copenhagen route twice. The flight was nice and on time. The Boeing 757-200 (which will now be changed to an Airbus A330 model) was very clean. I've also taken SAS Scandinavian Airlines on this flight and Air Greenland had a more "traditional" feeling to it probably because it is Greenlandic. I will definitely use them again on this route.