> I'm also not familiar enough with air-traffic control rules in the area to be sure, but it looks like you'd have to either pass through Icelandic or Scottish

> I'm also not familiar enough with air-traffic control rules in the area to be sure, but it looks like you'd have to either pass through Icelandic or Scottish airspace to get to Scandinavia. There's two separate issues there: there's airspace controlled by the Iceland and the UK and there's sovereign airspace. In the case of the UK and Iceland, the airspace they control goes far beyond the sovereign airspace.