The capital is often empty in summer. It's an opportunity to take full advantage of the many summer events the capital has to offer. But the long school vacations are also the time chosen by RATP and SNCF to carry out major works. At this time of year, public transport is less frequented by users.
Work is planned on four metro lines, almost all RER lines, and one tram line. After years of work to automate the line, line 4continuesto experience occasional service interruptions, particularly between Les Halles and Vavin stations for 19 days this summer, from July 6 to 24, 2026.
Running between Porte de Clignancourt and Bagneux – Lucie Aubrac station in Hauts-de-Seine, line 4 is one of the busiest lines on the Paris metro. It is worth noting that this line serves the Gare du Nord, Gare de l'Est, and Gare Montparnasse train stations, as well as Châtelet, Saint-Germain-des-Prés, and Denfert-Rochereau.
This summer, users of this line who are stuck in Paris will have to adapt and find alternative routes. Ten stations will be closed, including major transfer points such as Châtelet and Montparnasse station. The stations affected are: Les Halles, Châtelet, Cité, Saint-Michel, Odéon, Saint-Germain-des-Prés, Saint-Sulpice, Saint-Placide, Montparnasse-Bienvenüe, and Vavin.
RATP Line 4: service disrupted or suspended, real-time updates for the Paris metro
Are you a regular rider on Paris's Line 4? We’re sharing real-time traffic updates for this branch of the RATP public transport network. [Read more]
Public transport in Paris and the Île-de-France region remains disrupted from July 6 to 12, 2026, with the Paris metro's Line 4 cut between Montparnasse-Bienvenüe and Les Halles and Line 13 partially closed, in the midst of summer works, according to RATP and SNCF. [Read more]
Dates and Opening Time
From July 6, 2026 to July 24, 2026
RATP Line 4: service disrupted or suspended, real-time updates for the Paris metro
Transports Paris Île-de-France: Metro and RER disruptions from July 6 to 12, 2026
