Bassat beat Weber Shandwick in the final of a pitch involving two phases and eight other agencies in Spain.
Under the one-year brief Bassat, part of the Ogilvy advertising network, will handle press and events for the launch of the airport in early 2006. The agency is currently putting together publicity for the placing of the project's first stone in Ciudad Real next month.
Bassat will dedicate a six-strong team to the account, led by CEO Borja Puig, who will report to Jose Cano and Luis Llorens, president and press chief respectively for CR Aeropuertos.
Don Quijote's privately-owned developer CR Aeropuertos is hoping to position the airport as an alternative for low-cost and other airlines flying to Barajas, Madrid's main airport. A new station will connect passengers to Madrid and Seville by rail.
The one-runway airport is partly-funded by EU and Spanish government subsidies. Other investors include Spanish power giant Iberdrola and electricity multinational Isolux Wat.