The Royal Danish Academy of Sciences and Letters is located across from Tivoli, a five-minute walk from Copenhagen Central Station (Københavns Hovedbanegård).
FLIGHT Coming from abroad the easiest would be to book a flight arriving in Copenhagen Airport (CPH), Kastrup. Trains to Copenhagen Central Station departs frequently and is only a 15-minute ride. Alternative airports are Billund Airport (BLL), Billund and Aarhus Airport (AAR), Tirstrup. There are buses from Billund Airport and Aarhus Airport to Copenhagen.
See TRAIN schedule here.
See BUS schedule from Aarhus & Billund here. You would have to combine the bus with the train also from, for example, Aarhus city to Copenhagen.
For public transport in Copenhagen use buses 1A, 2A, 11A, 15, 40 or 65E, they all stop at “Glyptoteket” in Tietgensgade, a two-minute walk from the main entrance of the Royal Academy at H.C. Andersens Boulevard.
ADDRESS The Royal Danish Academy of Sciences and Letters, H.C. Andersens Boulevard 35, DK-1553 København V.