Taxis are available at the airport. As in any city the prices of these taxis are variable and negotiable. Before the commencement of the ride we strongly advise that you agree to the price beforehand. The price should not be more than 20 EUR.
Alternatively you can call a local cab which will use a taximeter, but this entails waiting for them near the ramps in the parking lot of the airport.
There is a bus that drives between the airport and the downtown. It stops on all the regular city bus stops along the way. The price of the bus is 5 KM (~2,5 EUR) single and 8 KM (~4 EUR) return payable in KM only. A Sparkasse Bank ATM at the airport has money conversion capabilities. The bus takes about 20 minutes to downtown, but this is dependent on traffic, and this time will be longer during rush hour (3-6 PM).
One piece of hand luggage and one piece of checked luggage are free of charge. Each additional item is charged extra.