The Copa del Rey final between Atletico Madrid and Real Madrid will take place at the Santiago Bernabeu on Friday, May 17.
The decision to play the match on the Friday is to avoid television scheduling problems with the Eurovision Song Contest which is being hosted in Malmo, Sweden, on the following day.
Each team will have an allocation of 35,000 tickets to distribute to their supporters, leaving just over 10,000 in the hands of the Royal Spanish Football Federation (RFEF).
The final will be the third meeting between the two sides this season. The last time they did battle at the Bernabeu was in December when Real ran out a comfortable 2-0 winner. The return Liga match takes place at the end of April.
On their way to the final los Blancos knocked out Barcelona, Valencia and Celta while Atletico came through tests against Sevilla, Betis and Getafe.