Search-form presets - search for 'economy' and 'compact' car at the rental location 'Billund - Airport'.
Address: Billund Airport, Billund, Dk-7190, Billund, Denmark. International Airport Code - BLL.
You can also change the search presets to other inexpensive car classes - 'Mini' or 'Compact'.
If your budget is limited, it is better to book a car in advance, since rental rates increase with decayed availability of vehicles. Quite often, the cheapest options of golf-class cars in Denmark can be found in airports.