To get to Aalborg Airport from the city, you can take bus number 2, which costs around 20 DKK ($3) and takes approximately 30 minutes. There is also a train service available, with a ticket costing around 35 DKK ($5) and a travel time of about 15 minutes. As for taxi rides, the usual cost from the city center to the airport is approximately 150-200 DKK ($22-$30), but prices may vary.