There are planes from Copenhagen, Oslo, London, Málaga, Tórshavn and Reykjavik to Aalborg Airport.
There are trains from Copenhagen, Aarhus, Randers, Odense, Esbjerg and other cities to Northern Jutland.
There are ferries from Sweden and Norway to Hirtshals and Frederikshavn in North Jutland.
From Copenhagen or Aarhus: Take the 888 bus to Aalborg, and from there take another bus to your destination