Heathrow Airport Holdings (HAH) is expected to sell-off Southampton, Glasgow and Aberdeen airports by the end of the year, according to reports.
If the sale goes through it would mean HAH, formerly BAA, would only own Heathrow airport.
Spanish firm Ferrovial are tipped to purchase Glasgow and Aberdeen, according to The Scotsman.
Staff are believed to have been told yesterday of the plans, and in a statement HAH said: “Over recent months Heathrow Airport Holdings group shareholders and management have been considering their strategic position in relation to our three airports, Aberdeen, Glasgow and Southampton.
"As a result the group is now formally entering a sale process. While there is currently no certainty that a sale will be concluded, the group intends to work towards completing a transaction by the end of the year."