UK airports operator BAA has lost its appeal against the Competition Commission's ruling that it must sell London Stansted.
The UK Competition Appeal Tribunal today dismissed BAA's appeal, meaning that the operator will have to sell Stansted alongside Edinburgh Airport.
BAA has already sold London Gatwick and has opted to sell Edinburgh after being told to sell either Edinburgh or Glasgow.
In September, BAA announced that it would fight the decision that it should sell Stansted through a judicial review.
It argued that there had been "material changes to circumstances" since the Competition Commission's original ruling that it should sell two more airports.
But the Competition Appeal Tribunal today ruled that "an adverse effect on competition with very substantial impact arose from the common ownership by BAA of [London] Heathrow and Stansted".