By train
Aalborg is on the Copenhagen, Roskilde, Odense, Aarhus Line. 4½ hours/DKK 402 to Copenhagen.
By bus
Aalborg Busterminal on John F Kennedy Plads The John F Kennedy square, phone: 98 12 87 13 right by the station is a large regional hub for long distance, regional and local buses. Express buses XBus (http://www.xbus.dk/) leaves several times per day towards Aarhus via Hadsund, Løgstør, Holstebro, Viborg via Silkeborg and Esbjerg. In addition regional buses locally known as rutebil connects to nearly every city of some size in North Eastern Jutland.
Abilskou
route 888 (http://www.abildskou.dk/g...) to Copenhagen takes 5 hours, DKK 250 DKK 430 return.
By ship
There are ferries from Norway/Sweden/UK coming to North Jutland Hirtshals or Frederikshavn. From there you can take bus or train to Aalborg.
By plane
Norwegian and SAS have flights from Copenhagen to Aalborg, while Norwegian also offers international direct flights from European cities. The airport is located north of the city. Take Bus no 2 or a taxi very expensive! to town. The bus is infrequent on weekends and evenings, and stops the service rather early around 23:00. If you arrive very late, have little luggage and small budget, you can walk ~2km until the Lindholm train station. Bus or train to the center should be still available after midnight.
By car
From Frederikshavn: Use the E45 southbound to Aalborg.From Hirtshals: Use the E39 southbound to Aalborg.From Aarhus: Use the E45 northbound to Aalborg