Iceland Air is not making its money on people going to Iceland. Flights come in from several airports in the US arriving at roughly the same time. There is a big mix in the Reykjavik Airport and flights depart for various European cities. Paris and London don't want them, but they do serve the Scandinavian capitols and Luxembourg. Fly Detroit-Reykjavik change to Reykjavik-Luxembourg and you are right in the center of the European rail net. Going home, do the same in reverse. They really have some great rates US to Europe and return.