There are very few private aircraft in Nunavut.  Over the years there have been a handfull of ultralights and Cessna 172s based in Iqaluit. But though we're fairly far north by southern Canadian standards, our home in Iqaluit is not the most northerly spot for private aviation in Nunavut.  Check out this blog from Larry in Kugluktuk CYCO (formerly known as Coppermine) on the Arctic Coast.

That's about 1100 nm northwest of Iqaluit, but still in Nunavut. We've never met Larry.  Nunavut's a big place.

Larry flew his Challenger ultralight from Montreal to Kugluktuk, and had himself a bit of an adventure in the process. He did the trip over two years (2005-2006). His blog tells the story in great detail. Good read and pictures. Part 1 is here; Part 2 is here; and Part 3 is here.