Big things are underway with the new partnership between Alaska Airlines and Icelandair. This deal is good news: It gives members of Alaska Airlines Mileage Plan a way to earn miles when flying to Iceland. And to celebrate, you can earn double Mileage Plan miles on any Icelandair flight until December 15.

Like Singapore Airlines, Icelandair serves a small island nation, but it has a big international reputation. The airline has carved a niche for itself in the U.S.-Europe flight market by offering free stopovers in Iceland and frequently featuring super-low cash fares.