Copenhagen is served by Copenhagen Airport (CPH). A list of all flights to Copenhagen Airport (CPH) can be seen on their website. Take the Metro (look for the big M) from the Airport to Nørreport Station (approx. 15 minutes).
Train connections within Europe can be seen on the website of German railways DB Bahn. For most Inter-City trains to Copenhagen, the end stop is the central station København H; take one of the very frequent local trains (S-trains) to Nørreport station (2 stops by S-train).
Nørreport Station is in central Copenhagen; most hotels are nearby, and Universitetsparken/HCØ is easily reached by bus. Locate the bus stop of the busses 184, 185, 150S and 173E (in northern part of the station area) they all have Nørreport as their end stop, so there is no question of direction. Ask the driver to drop you off at Universitetsparken. The H.C. Ørsted Institute (HCØ) is the big building across the street to your left. Walking to Universitetsparken from Nørreport Station takes approximately 35 minutes. Taking a taxi from the airport to the H.C. Ørsted Institute (HCØ) or hotels costs approx 300 DKK (40 EUR). A taxi from Nørreport Station to the H.C. Ørsted Institute or hotels costs less than 100DKK. For general information about public transportation use the route planner.