Airport company BAA will have to sell one of its Scottish airports before it sells Stansted.
Earlier this year, the Competition Commission (CC) ruled that Stansted Airport in Essex would be sold first, followed by either Edinburgh or Glasgow.
The sales had been ordered following a lengthy investigation into whether BAA’s ownership of UK airports was anti-competitive.
But in the latest of a series of legal challenges, BAA has appealed against the Stansted sale.
This led to the commission ruling that the disposal of one of the Scottish airports would be brought forward, with the sale process expected to begin shortly.
Laura Carstensen, chairman of the commission’s BAA remedies implementation group, said: “We feel this is the best approach in view of the further delay caused to the Stansted sale by this second appeal.”
BAA chief executive Colin Matthews said the company was pleased with the latest decision.
The sale would leave BAA with Heathrow, Stansted, Southampton, Aberdeen, and either Edinburgh or Glasgow.