The RER Paris takes the same tickets and the same passes as the Metro — within central Paris. That's an important distinction, because if you want to go outside of central Paris, you will need a different ticket. (The same applies to Metro tickets.)
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Paris RER TicketsWhen taking a RER train strictly within central Paris Zone 1 (visible in the first RER Map), you can use basic Paris Metro tickets for travel on the RER. Travel beyond Paris Zone 1 on the RER requires a special ticket: a Billet Ile-de-France.
Single tickets (t+ ticket) and carnets or books of ten tickets. The RATP run the Metro, RER, buses and trams within Paris and a single ticket can be used on any of the four modes for a single journey.
The RER Paris is a rapid-transit train system that runs beneath the Metro. It has fewer stops, but the time between stations is only literally a few minutes — travel from Charles de Gaulle-Etoile all the way across town to Vincennes in just 15 minutes.
With the t+ ticket, travellers will be able to travel on the Metro and the RER express train (zone 1), or connect a bus line with another bus line or with any tram (except T4). However, travellers won't be able to change from the metro to the bus or use the same bus line twice using the t+ ticket.
Metro. The Paris Metro is our preferred way to get around the city when we travel around central Paris. This is because it is fast, affordable, has a regular service, and it covers the majority of the attractions in the city centre. The Paris metro system is currently made up of 16 lines and 302 stations.
How Much do the RER Train Tickets Cost from Paris CDG Airport? A one-way ticket for RER B trains costs 11.40€/11.40$ for adult passengers, while an airport ticket for children between 4 and 9 is 8€/8$. Younger children travel for free. Tickets are available at the station's automatic machines and ticket offices.
Paris Metro tickets have no expiry; You can use them at any time in the future. Tickets can be purchased from ticket windows inside stations or through automated ticket vending machines accepting Euro coins and smart chip credit cards. The single ticket price as of Jan. 1, 2023 is 2.10€.
The RER B line is a direct rail link between Paris (Denfert-Rochereau, Saint-Michel-Notre-Dame, Châtelet-Les-Halles, Gare du Nord) and Paris-Charles de Gaulle Airport. A free CDGVAL shuttle connects the stations with the airport terminals.
Tickets purchased individually or in packages of 10 are permanently valid for single use and are issued without an expiration date. Single tickets can be purchased from metro/RER stations, some bus terminals, and registered retailers, usually tobacconists and bookshops, displaying the RATP sign.
Only multi-use Paris Metro/RER passes can be purchased online ahead of time. Single use RER tickets such as for the RER B from CDG to Paris, can only be purchased at ticket windows, offices and vending machines within Paris.
Paris RER tickets and fares 2023Adult fare €11.45 walk-up price/€12.40 online with additional booking fee. Child 4-9 €8 walk-up/€8.80 online. CDG Airport is in zone 5 of the Paris public transport system. There are a number of Paris public transport passes (see below).
You can buy the ticket you need from the kiosks (or vending machines) right at the entrance to the airport RER station. The line is RER B. Current cost is €10.30 per ticket, one way. Similarly, if you want to take the RER back to CDG on your departure day, buy your ticket at the RER B station.
According to the calendar shared by the French PM, you will have to wait until February 16, 2022, to be allowed to drink and eat “normally” again on public transit.