What are the four Copenhagen Metro lines M1, M2, M3 and M4?
Four lines, two pairs
Short answer
The Copenhagen Metro has four lines. M1 runs from Vanløse to Vestamager through Ørestad, and M2 runs from Vanløse to Copenhagen Airport through Amager; the two share the stretch from Vanløse to Christianshavn. M3, called Cityringen, is a loop under the city centre, Østerbro, Nørrebro, Vesterbro and Frederiksberg. M4 runs from Orientkaj in Nordhavn through the centre to København Syd in Sydhavnen and Valby and shares stations and tracks with M3.
Why
- M1 and M2 share the western and central stretch.
- M3 is a closed loop.
- M4 uses part of the M3 tracks.
Details
You change between M1/M2 and M3/M4 at Kongens Nytorv and Frederiksberg.
Tip
Check the line number and the end station on the platform sign, as M1 and M2 leave from the same platforms in the centre.
What may differ
A new line M5 and an extension of M4 are planned, so the network map will change in the coming years.
Common misconception
Many think Cityringen (M3) also goes to the airport.
What actually happens
Only M2 goes to Copenhagen Airport; from M3 you change at Kongens Nytorv or Frederiksberg.
People also ask
- Which metro line goes to Copenhagen Airport?
- What is Cityringen in Copenhagen?
- Where does the M4 metro go?
Sources
- The Copenhagen Metro: Welcome to the Copenhagen MetroChecked at:
- The Copenhagen Metro: M1 Vanløse - VestamagerChecked at:
- The Copenhagen Metro: M2 Vanløse - Københavns LufthavnChecked at:
- The Copenhagen Metro: M3 CityringChecked at:
- The Copenhagen Metro: M4 Orientkaj - København SydChecked at:
This answer is for reference only. Timetables, routes and fares change, so check the operator before you travel.
Copenhagen guideRelated questions
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Who are the Natteravne you see at train stations in Denmark at night?
Natteravne (night ravens) are adult volunteers who walk the streets at night where young people gather, including stations and trains.
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Are there security guards on S-trains in Copenhagen?
Yes, security guards (tryghedsvagter) work on the S-trains in Copenhagen to help passengers feel safe, as of November 2026.
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What do you do if you leave something on a city bus in Denmark?
If you leave something on a bus in Denmark, contact the bus company that runs the route, as of November 2026.
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Is there a companion discount for disabled travellers on Danish buses?
Yes, a person with a disability can travel with a companion at a reduced price on Danish public transport in 2026.

