Luton Airport looks set to be sold for around £400m.
The airport handled 9.6 million passengers last year and will be, subject to regulatory approval, Aena's fifth largest airport.
Aena executive chairman Jose Manuel Vargas said: "We aim to substantially build up Luton in consultation with all its stakeholders."
More top news
The Met Office has issued an early storm warning for strong winds forecast to hit the Anglia region on Thursday.
Traffic congestion in towns and cities in the Anglia region are delaying drivers for hours and costing the economy millions.
Cambridge Table Football Club will be taking on the best in Europe after qualifying for the European Championships.