Trains depart from København H (Copenhagen Central Station) every 20 minutes and the travel time is only 35 minutes to the centre of Malmö. You can also take a direct train to Malmö from Copenhagen Airport. You can get to Copenhagen Airport by both train and metro. Find train tickets here.
Please note that border authorities carry out ID inspection at Copenhagen Airport for travelers going to or from Malmö (or elsewhere in Sweden).
Tickets from the capital area to Southern Sweden are available for purchase at DSB Sales & Service within the capital area, 7-eleven stations or ticket machines.
Take The Øresunds Bridge. From central Copenhagen to central Malmö this is ride takes about 45 - 60 minutes depending on the traffic. A one-way toll fee is about DKK 360.See the exact prices here.
In Ingerslevsgade, right off Copenhagen Central Station, you’ll find buses like Flixbus taking you back and forth.