MADRID, May 14 (Reuters) - Ferrovial could join its partner, Australian financial group Macquarie, in the latter's potential sale of stakes in three British airports in Aberdeen, Glasgow and Southampton, the construction company's CFO Ernesto Lopez said on Tuesday.

No final decision has yet been made regarding AGS Airports, as their joint operation is known, Lopez told analysts in a call.

In December, sources told Reuters AGS Airports could be up for sale as infrastructure investors around Europe are working on the sale of their stakes in airports, leveraging on the recovery of travel in the wake of the COVID-19 pandemic.

Ferrovial, which is building a new terminal at New York's John F. Kennedy airport, expects to sell a 25% stake in London Heathrow - Britain's busiest airport - by the end of 2024, CEO Ignacio Madridejos told Reuters last week.

Ferrovial reported an 8.4% year-on-year increase in traffic at these terminals in the first quarter, while Heathrow's passenger numbers grew by 9.5% over the same period.

Dealmaking in the European airport sector is picking up. Vinci Airports recently bought a 50.1% stake in Edinburgh Airport.

(Reporting by Corina Pons; Writing by David Latona; Editing by Andrei Khalip)