I took a long walk from one side of Kangerlussuaq to the other. Basically, this means I walked around the airport as there are sort of two parts of town on either side of the runway. This road runs "behind" the airport if you will, as it's on the opposite side as the terminal.
In general, getting on/off flights is a pretty casual affair, with only international flights seeming to resemble a normal boarding process. Flying domestic? No need for going through security - just hand your ticket to the gate agent and walk out onto the tarmac and up the steps to the plane. Easy peasy!
An icy road behind the airport.