A 4-2 victory over Malaga in the first leg did the heavy lifting as Deportivo La Coruna progressed to the final of the Segunda play-offs.
Deportivo La Coruna qualified for the Segunda Division play-off final with a 5-2 aggregate defeat of Malaga thanks to Saturday's 1-0 win at La Rosaleda.
Carlos Fernandez scored twice as Deportivo came from behind in the first leg to establish a dominant position in the tie.
And, despite Malaga recording 25 shots in the return match, Jose Luis Marti's side held firm to secure a spot in the final.
Malaga had their chances, with winger Javi Ontiveros – the scorer of a delightful goal in Galicia – twice denied by the woodwork in a frantic first half, but goalkeeper Dani Gimenez remained unbeaten.
His opposite number Munir Mohamedi handed Depor victory in the second leg by allowing a speculative Alex Bergantinos drive slip out of his grasp in the 82nd minute, though a comeback already looked beyond Malaga.
Depor will face either Real Mallorca or Albacete for a place in LaLiga next season, with the former holding a 2-0 lead from the first leg at Son Moix.