Madrid does not necessarily = Barajas!
Quite. These are excerpts from Air Transport Intelligence, I've highlighted an interesting paragraph:
Spain clears way for completion of Don Quijote Airport
David Kaminski-Morrow, Warsaw (23May06, 11:06 GMT, 404 words)
Spanish authorities have given the go-ahead for construction to resume on the country’s first private airport, Don Quijote outside Cuidad Real, after several months’ dormancy prompted by environmental investigations.
...
Don Quijote Airport is being marketed as a potential low-cost airline base for Madrid despite being some 200km south of the capital.
....
While no customers have yet been formally signed to serve the airport, [Don Quijote marketing director] Rafael Echevarne says that discussions have been held with carriers including Irish budget airline Ryanair.
“Low-cost carriers are going to be our main target,” he states. “Airlines in major alliances are still going to go to Madrid Barajas.”