Paris is served by six train stations situated in the centre of the capital. From these, you can take a metro or one of the taxis parked in front of every station.
If you are arriving by plane, then there are several ways of getting to the city centre.
The Orlybus links Orly airport to place Denfert-Rochereau in the south of Paris, in around 30 minutes (fare: €7.20). Orlyval, a special metro, transports travellers to Antony RER station; from here, RER line B takes travellers on to the city centre (fare Orly-Paris: €11.30 /adult; €5.65 /child 4-10 yrs). From Roissy-Charles-De-Gaulle airport (Terminal 1), RER line B takes you to the city centre Les Halles) in 36 minutes for €9.50. The Roissybus service takes travellers to the Opéra district, in less than an hour (fare: €10).
You can also opt for a taxi: the current charge for transfers between Roissy-Charles-de-Gaulle and central Paris is at least €50, with a 15% increase at night, on Sunday and public holidays, and around €35 from Orly. A cheaper alternative is the shared taxi system. Wecab, a service provided by Taxis G7, enables you to reduce the cost of a journey by booking in advance.
The cars Air France offer several airport shuttle transport services to and from several central points in Paris (one-way: from €9 for adults and €5.50 for children; round-trip: from €18 for adults. Fares vary according to itinerary). Finally, some companie like Le Transport Smart, Uber or different private shuttle services can be pre-booked at a fixed fare. According to the number of people travelling, you can choose a people carrier, minivan or minibus.