Spanish construction company Ferrovial, which owns BAA, has received three offers for London's Gatwick airport.
The deadline for submitting bids for Gatwick, Britain's second-busiest airport, passed on Monday, with operator BAA saying a winner could be announced in days.
The news of three bids was confirmed by the head of the company's airport division Inigo Meiras at the company's annual shareholder meeting.
The three likely bidders were: Global Infrastructure Partners (GIP), a fund with General Electric and Credit Suisse as founders that owns London City Airport; Lysander Gatwick Investment Group, comprising Citi Infrastructure Partners, Vancouver Airport Services and John Hancock Life Insurance Company; and Manchester Airports Group, Borealis and Greater Manchester Pension Fund.
In a final report last month, the UK's Competition Commission ordered BAA to sell three of its airports in Britain. BAA was told to dispose of Gatwick and Stansted airports as well as either Glasgow or Edinburgh airport within two years.
BAA, heavily criticised for the standard of services at its seven UK airports, had already put Gatwick up for sale.