There are a number of busy rail stations in Copenhagen, the two main ones being Copenhagen Central Station and Nørreport. From Copenhagen Central Station trains arrive and depart to and from all over Denmark and Europe. Nørreport has some international departures and arrivals, mainly to and from Sweden, but the station is chiefly busy because of the domestic traffic in and out of the capital. The characteristic red “S-trains”, operated by Danish Railways (DSB), service the greater Copenhagen area and beyond. In addition to their metropolitan service, DSB also offer routes to the rest of Denmark.
The other major cities in Denmark are also well-connected to the rest of Europe. Contact you rail operator to find out where you can go.