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M4: passenger service information 

On this page you will find information on M4 Blue line, the new driverless metro connecting Linate airport with Milan city centre.

Stations and accessibility services – the map of the network

The new line operates among these stations: Linate Airport, Repetti, Stazione Forlanini, Argonne, Susa, Dateo, Tricolore and San Babila. All stations are equipped with lifts and escalators. People with disabilities can check out this page to find more information.


M4 service is operated every day from 6:00 to 00:30.
Check the timetables on this website and on ATM mobile app (Search > M4).

Planned closures due to technical tests

In the coming months we will carry out all the activities to open the entire line to passengers. During the testing time M4 trains are replaced by buses. More information on this page.

At San Babila station, touch out to transfer

The same ticket or credit card is accepted to transfer between metro lines 1 and 4.

From Linate to exhibition and congress venues

  • To Fieramilano exhibition district:
    • M4 to San Babila + M1 to Rho Fiera
    • M4 to Dateo + S trains to Rho Fiera railway station
  • To Allianz Mico congress centre:
    • M4 to San Babila + M1 to Lotto
    • M4 to San Babila + M1 to Lotto + M5 to Portello

Tickets and passes

You need a 2,20 € ticket (M1-Mi3 zones) to travel between Linate airport and Milan, as well as a urban pass.
Tickets and passes are also accepted to travel on S trains and the ATM network.
More information about fares and zones on this page.

Travel on the metro by paying with your contactless card

You can pay as you go with contactless credit and debit cards on all metro lines. Touch in and touch out at the orange gates and use the same device (how it works).

Cycles on public transport

All passengers can carry their own cycle on metro M4. Click here to find transport conditions.


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