Well I've taken the plunge and booked the flights for next May. £208 plus taxes and everything. Complete bargain!
But here's a question. Since we're going via Zurich, I checked how much a return flight to Zurich would cost by itself. Always fancied going to Switzerland for a city break. So went back on the Swiss website - and did a return jouney, same flight as the Moscow one.The cost was £395 for 2 people! How can this be? How can they charge double for going half way? And what would happen if I booked another Moscow return, but stayed in Zurich and didn't bother with the Moscow section? Is this possible?