From Kastrup Airport to Hotel Copenhagen Island (12, 7 km)
From track No. 2 below airport terminal 3 you can take the train directly to the city. Get off at the Copenhagen Central Station. From here you can walk to the hotel in 12-15 minutes.
Alternatively to walking you can take the S-train from track 11 and 12 and get off at Dybbølsbro Station or you can take bus No. 30 from the Central Station to Fisketorvet Shopping Center. The ticket bought in the airport for the train is also valid in the S-train and the bus, provided that you continue directly.
The price for a one way adult ticket is DKK 30 or approx. € 4
If you take a taxi from the airport the price will be about DKK 280 or approx. €37,5. All taxies have a taxameter and they accept major international credit cards.
For more details, consult the maps on the Hotel webpage: (choose "location") http://www.copenhagenisland.com/