Both teams already said they want to play at Santiago Bernabeu
The Spanish Football Federation will hold a meeting next 25th of March to decide the venue of the Copa del Rey final. Albert Soler, sporting director of Football Club Barcelona, will represent the Catalan club in the meeting.
Both clubs, Barcelona and Athletic Club, already said they want to play the final at el Santiago Bernabeu, but Real Madrid doesn't agree with it.
Other options are Mestalla (Valencia) or La Cartuja (Sevilla), but Barça would say no tot this last option.