Four teams made it through to the final stage, where they will play-off for the two remaining promotion spots. Alcorcón had finished third in their regional group so they will play the remaining group champions Real Unión, and the two second-placed sides Real Jaén and Villarreal B will meet over two legs in the other final. (08.06.09)
Real Unión and Villarreal B are promoted after winning their second leg ties. (21.06.09)
| 21 Jun | Real Unión Goikoetxea (2), Juan Domíngez |
3-1 | Alcorcón Cristian |
| 21 Jun | Jaén Esparza |
1-2 | Villarreal B Cristobal, Chando |