Valencia defeated Real Betis 1-0 on Thursday to qualify for the first time in 11 years for the final of the Copa del Rey, where they will face reigning champions Barcelona.
The home team won with a goal in the second half by Rodrigo Moreno that gave them a 3-2 victory in the aggregate scoreboard.
Valencia, who won the title in 2008, will clash with 30-times winners Barcelona in this competition on 25 May at the Benito Villamarín del Betis stadium.
Valencia coach Marcelino has reached a major final at last after losing three Copa semi-finals and one Europa League semi while in charge of Racing Santander, Villarreal, and Valencia.
He said it was rewarded for a difficult season for his side, who are ninth in La Liga after drawing 15 of their 25 games.
“This is dedicated to our extraordinary squad which has suffered so much and deserved this prize,” Marcelino told reporters.
“We have had some tough times, a lot of draws and a few defeats but we have always been a competitive team.
Barcelona, who won the last four editions of the Copa del Rey, beat Real Madrid 3-0 away on Wednesday for a 4-1 aggregate victory in the other semi-final.