Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Villach (29% of total searches to Carinthia). The next most popular destinations are Velden am Wörthersee (29%) and Klagenfurt (21%). Searches for hotels in Mallnitz (21%) are also popular.
KAYAK users have found double rooms in Carinthia for as cheap as $188 (Velden am Wörthersee) in the last 3 days. The average price is $407.