Mirandés' dream of winning the Copa del Rey came to an abrupt end on Tuesday night as Athletic Bilbao put six goals past them in the second leg of their semi-final to end the club's fairytale cup run.

The 8-3 aggregate win for Athletic over their third-division opponents sets up a final date with either Barcelona or Valencia, who play the second leg of their semi-final on Wednesday night.

Athletic took a 2-1 lead into the second-leg and scored three goals in the opening 22 minutes to consolidate their advantage.

Mirandés, who eliminated Villarreal, Racing Santander and Espanyol on their way to the semi-finals, came out fighting to restore some pride at the start of the second half and managed to pull one back before Fernando Llorente netted twice in four minutes to put the result beyond any doubt.

Mirandés scored a second goal in the 86th minute after taking advantage of some slack defending at a set-piece, but it was far too late for a turnaround and Caneda's 88th minute own-goal made sure of Athletic's place in the final.