Hi
In March 2014, the first elected Spanish Prime Minister after the dictadure died in Madrid. The main airport (Madrid-Barajas [LEMD/MAD]) was then re-named "Adolfo Suárez Madrid-Barajas".
I don't know if these changes are to be reflected in the game, but I tell you, just in case ;D
This is the web of the Spanish airport operator, where you will find some useful information: http://www.aena-aeropuertos.es/csee/Satellite/HomeAenaAeropuertos