METRO — The S-trains run between 05:00 in the morning and 00:30 at night. Line F runs every 4-5 minutes, line A, B, C and E run every 10 minutes, and line H and Bx run every 20 minutes. On Friday and Saturday the trains run once an hour between 01:00 and 05:00. However, line F runs every half hour during these hours.
Copenhagen card: With a Copenhagen card in hand, you can travel free of charge in the Copenhagen area (on that city’s metro and buses). There is also free entry to over 80 museums and attractions, and discounts on restaurants, car hire, shops and sights. Read more at www.copenhagencard.com
Citypass: the City Pass gives you unlimited access to Copenhagen’s public transportation (buses & metro) in zones 1 – 4, which includes the center of Copenhagen and to and from the airport. The City Pass is valid for 24, 48, 72 or 120 hours. You can buy your City Pass at the ticket vending machine at all stations and including at the airport, or online at: www.citypass.dk
Copenhagen Metro Map (web link): https://intl.m.dk/#!/about+the+metro/travel+information/maps