On December 31st (New Year’s Eve), certain Paris Metro & RER lines stay open and operational all night long.
Paris Metro lines operating all night: 1, 2, 4, 6, 9 et 14 the evening of New Year’s eve (beginning at 02:15 until 05:30 when normal operations resume). Some stations will be closed completely along these lines and some entries/exits at operating stations will be closed. (Unfortunately RATP has not specified which stations in particular will be closed.)
Paris RER lines operating all night: RER A and RER B the night of 31 December, with frequency of one RER A & RER B train per 18 minutes throughout central Paris (Zone 1) and outside of central Paris Zone 1 expect 35-60 minutes per train. RER C, D, and E lines will also operate but at 60 minute intervals during the night.
Map of RER and Transilien New Years Eve trains running throughout the night on New Years Eve along with their frequency of operation after normal operating hours (which on a normal operating day end around 00:30 and start again at 05:30).
Paris Noctilien (night bus) will operate as per normal.
All Paris Metro, Buses, RER, Trams will operate free of charge from 17h (5pm) on Dec. 31 until 12:00 noon January 1.
Please keep in mind that not all Metro stations along the above noted lines will be served during the extended service hours, rather only the more popular stations and stations with connections to other lines.
Paris Metro & RER lines not mentioned above will operate as per normal with service ending at 00:30 for the Metro. For more information RER hours of operation see the Schedules page.
(Thanks to Didier Rouger of RATP for some of the above information).