Originally Posted by
airhumberside
That scenario won't happen. I'm pretty sure - though can't find a recent document to confirm - that the UK-Russia bilateral restricts the number of UK airlines allowed to links the countries to two.
However there are already three Russian carriers operating to the UK, Aeroflot, Transaero and Rossiya. As these things are always kept very balanced with Russian bilaterals, if there are three from Russia there are likely to be three available from the UK.