you let me know when FR may be operating London to St. Petersburg for a fare, including all the extras including food and drink and going for a pee, of GBP52 (round trip)
Phileas - I know it's not quite the same, but FR don't fly to LED. As a close proxy I've flown round trips Stansted-Riga-Stansted for £33.26 in 2006 and Stansted-Tampere-Stansted for £38.89 in 2007, including all the miscellaneous charges stuff, with all flights being on a Saturday. And yes, it was all non-stop flights, with no need to go via somewhere else.
I suspect that as an Irish airline, Ryanair will have difficulty securing UK-Russia traffic rights any time soon, but I await the day when MOL pulls some kind of publicity stunt in central St Petersburg to advertise some new routes !