There are several daily flights from Copenhagen to cities around Denmark. SAS have direct flights from Copenhagen to Aarhus, Aalborg, Billund, Karup, Rønne (Bornholm) and Sønderborg. Alsie Express flies from Copenhagen to Sønderborg, and from Sønderborg to Rønne (Bornholm). Norwegian flies direct from Copenhagen to Aalborg. Not sure where to fly to in Denmark? Here's a handy list of airports in Denmark to help you decide!