Sonderjyske put up a great fight throughout the match, but Aalborg kept their nerves in a dramatic finish and advanced to the cup final.
Aalborg were in trouble for long periods of Saturday's cup semi-final against Sonderjyske, but in the end Aalborg's greater experience made the difference.
It all ended with a 24-22 win for Aalborg, who in Sunday's final will meet Bjerringbro-Silkeborg, who earlier on Saturday secured a comfortable win against Grindsted in the second semi-final.
There was far more excitement in Saturday's late semi-final, where Sonderjyske reduced the score to 21-22 with six minutes remaining.
However, Aalborg remained cool in the final phase, while Sonderjyske squandered several great opportunities.
Sonderjyske keeper Julius Sten attempted to score in an empty net at the other end with the score at 22-21 in Aalborgs favor, but his shot was blocked by Simon Hald, who scored himself to make it 23-21 a minute later.
Aalborg winger Kristian Bjørnsen made it 24-21 with less than four minutes left. Aalborg then followingly failed to add further goals to their lead but it also proved unnecessary anyway.
Sonderjyske were only able to reduce once through August Wiger to 22-24 and it proved costly that the outsiders wasted two penalties in the final two minutes.
The final will take place Sunday afternoon.