Aalborg is a regional start for northern Jutland. Avoid a same-day drive from Copenhagen merely to reach this region.
The airport locates rental companies to the right of the main entrance towards Arrivals Hall 2. Check the booked desk and the separate vehicle-return instructions.
A rental car helps link Jutland beaches, smaller islands reached by road or ferry, and rural accommodation. Copenhagen is easy to separate into a city stay before collection. Compare parking and the number of days you actually need the vehicle.
Compare airport collection with a later collection if you start with a city stay. Include the transport to a different rental branch and any extra parking nights when comparing the total cost.