How Public Transport Works in Denmark

Overview

Danish public transport is operated by several companies but coordinated under one zone and ticketing system. In the Capital Region, DOT (Din Offentlige Transport) coordinates Metro, S-tog, buses, and regional trains. For national travel, DSB runs intercity trains. A single Rejsekort works on almost everything.

Rejsekort — your travel card

The Rejsekort is a contactless smart card you tap on at the start and end of each journey. The system automatically calculates the cheapest fare based on the zones you travel through. Types:

• Rejsekort Personal: Registered to you (requires CPR). Best rates. Can be set to auto-top-up. ~75 DKK to purchase.
• Rejsekort Anonymous: No registration needed. Slightly higher fares. Good for visitors. ~80 DKK.

Order at rejsekort.dk or buy at DSB stations and 7-Eleven.

Zone system

Fares are based on zones. The more zones you cross, the more you pay. Copenhagen city centre is zones 1–2. A 2-zone journey costs ~17 DKK with Rejsekort, ~24 DKK with a single ticket. The DOT app and Rejsekort always calculate the cheapest combination.

Copenhagen transport

• Metro: 4 lines, runs 24/7. Fast, frequent (every 2–4 minutes in peak), driverless. Covers city centre, airport, Nordhavn, and Sydhavn.
• S-tog: Regional rail. 7 lines covering Greater Copenhagen. Runs ~5am–12:30am (all night on Fri/Sat). Similar to a commuter rail system.
• Buses: Extensive network. The “A” buses (1A, 2A, etc.) are high-frequency lines running every 3–7 minutes.
• Harbour buses: Free ferry boats crossing Copenhagen harbour. Part of the DOT network.

National trains (DSB)

DSB operates intercity trains: Copenhagen → Aarhus (~3 hours), Copenhagen → Odense (~1.5 hours), Copenhagen → Aalborg (~4.5 hours). Book via the DSB app or dsb.dk. Orange tickets (advance purchase) are significantly cheaper than standard tickets — often 50–70% off.

Tickets and passes

• Rejsekort: Best per-journey rate. Tap on/off.
• Single ticket: From DOT app or machines. More expensive than Rejsekort.
• Pendlerkort (commuter pass): Monthly pass for specific zones. Worth it if you commute daily (break-even at ~40 journeys/month). Also available as a tax deduction — see the commuter tax calculator.
• Copenhagen Card: Tourist card including unlimited transport + museum entry. Not useful for residents.

Bikes on public transport

You can bring a bike on S-tog (free, dedicated carriages), Metro (allowed outside peak hours and on weekends), and many regional trains (sometimes requires a bike ticket). Buses generally do not allow bikes.

Common problems

I forgot to tap out

You are charged the maximum zone fare. Contact Rejsekort customer service to dispute — they sometimes refund first-time mistakes. Check your balance regularly in the app.

My Rejsekort has insufficient balance

Minimum balance to tap on is ~70 DKK. Top up at machines, 7-Eleven, or set up auto-top-up through rejsekort.dk (requires NemID/MitID). If you are stranded, buy a single ticket from the DOT app.

Questions and answers

Is public transport good outside Copenhagen?

Aarhus, Odense, and Aalborg have good bus networks and Aarhus has a light rail. Rural areas are less well-served — a car becomes more practical.

Do children pay?

Children under 12 travel free with a paying adult (max 2 children). Ages 12–15 pay a reduced fare.

Is there a student discount?

Danish students with SU (student grants) get a free commuter pass (ungdomskort). International students should check with their university.