Guide for Metro & RER
Find helpful information for tourists and visitors on using public transportation in Paris and at CDG Airport.
The Paris public transport network serves the entire city and all its suburbs.
Metro & RER operate 7 days a week, including public holidays from around 5:30am to 12:30am.
Metro
The Paris Metro is the quickest and easiest way to travel around the city, as well as the best value.
Paris Metro has 16 lines, numbered from 1 to 14.
Its network covers the city’s central area thoroughly with more than 300 stops, and its service is reliable and frequent.
RER
The RER is a regional express train network serving Paris and its suburbs. It connects central Paris with outlying areas, including airports such as Charles de Gaulle and popular destinations like Versailles and Disneyland Paris.
There are 5 RER lines, labeled A, B, C, D, and E. Each line has multiple stops across the region. All RER trains call at Paris stations then split into several branches. Faster than the Metro because stops are less frequent, you can cross Paris in 15 minutes.
RER trains have different branches. Be sure to check the electronic boards or platform signs for the correct direction (final destination).
Ticket and fares
Since January 1, 2025, there are now three flat-rate tickets for occasional travelers (non-subscribers), regardless of distance, origin, or destination.
- Metro-Train-RER Ticket ➔ €2.50
Valid on all regional rail network lines, except airport services.
- Bus-Tram Ticket ➔ €2
Valid on all tramways, buses (except Roissybus), coaches, Noctilien night buses, long-distance buses, and on-demand transport services.
- Paris Region–Airports Ticket ➔ €13
This ticket covers travel between the airports and all locations within Île-de-France.
Paris Visite pass
Whether you’re sightseeing, shopping, or exploring, enjoy unlimited travel on the metro, buses, trams, RER, and suburban trains across Paris and the Île-de-France region with the Paris Visite pass. It’s the perfect choice for tourists seeking hassle-free, flexible, and cost-effective transportation during their stay – plus discounts on select museums, attractions, and tours.
How to buy tickets
➔ You’ll need a ′Paris Région-Airports Ticket′ for your trip to and from the airport.
The standard ′Metro-Train-RER Ticket′ is not valid.
Skip the queues – buy and store your tickets directly on your smartphone or connected watch via the Île-de-France Mobilités app.
Tickets purchased at vending machines or ticket counters are loaded onto a reusable, contactless Navigo Easy pass -if you have one- or you can buy a preloaded Navigo Easy pass with your ticket already loaded.
The Navigo Easy card costs €2, plus the fare for any tickets you load onto it. No photo or personal details are needed.
Note : The Paris Region-Airports Ticket cannot be loaded onto a Navigo Easy pass that already contains a Metro-Train-RER Ticket.
Validate your journeys with a simple tap.
Children under 4 years old travel for free, as long as they do not occupy a seat.
Children under 10 and other eligible groups travel at a reduced fare.