What I have is a group of people leaving South America, up through Central America, to the US, then to Canada, around the Arctic to Norway, then down along the Norwegian coast. And I need to know how far that is (and I have the specific route marked). But I can't find anything that might let me plot that trip, and find out how far these people have to travel.
Edit: thanks to gal_montag I now have a route, and a rough estimate of distance. Now to be completely unimpress the characters.