Public transport in Île-de-France: disruptions and works this weekend, September 26–27, 2026.

This weekend, the public transport in Paris and in Île-de-France will operate in two tempos. On one side, the works scheduled by the RATP and the SNCF will close several RER and Transilien lines on Saturday 26 and Sunday 27 September 2026. On the other, the Mass of Pope Leo XIV will lead to the closure of six metro stations in the 8th arrondissement and numerous bus stops in the 7th.

Paris isn't the only area affected. The disruptions also hit Essonne, the Seine-et-Marne, the Val-de-Marne, the Hauts-de-Seine, the Seine-Saint-Denis and the Val-d'Oise. We’ve sorted them by mode of transport to spare you any nasty surprises on the platform.

Before you head out, a quick check of the Île-de-France Mobilités site, or of the RATP site, or of Transilien SNCF remains the safest move. Forecasts can change from one day to the next.

Metro: which stations and lines will be closed this weekend?

The Paris metro is this weekend facing closures linked to the grand Mass of Pope Leo XIV, scheduled Saturday at 3 p.m. between Place de la Concorde and the Champs-Élysées, along with several renovation works.

• Charles de Gaulle–Étoile, George V, Franklin D. Roosevelt, Champs-Élysées – Clemenceau, Concorde and Alma‑Marceau stations: closed from Friday, September 25 at 22:00 to Saturday, September 26 at 20:00, due to the pope’s mass.
  
  
• Line 13: on Sunday, September 27, service on the entire line will be suspended until 12:00 noon due to modernization work.
  
  
• Line 4: Saint-Michel station will not be served until December 19, 2026 inclusive. Here’s an explanation of this closure.
  
  
• Line 8: République station remains closed until April 22, 2027 inclusive. All the details of this long-running project.

Sunday morning, the disruption on Line 13 is felt most on trips to Saint-Denis, Clichy or Châtillon. To the north, Line 14 serves Saint-Denis Pleyel. At Saint-Michel, both Odéon and Cité stations remain open on Line 4. At République, Lines 3, 5, 9 and 11 continue to stop. Aren’t you coming for Mass? We’ve listed the neighborhoods to avoid when going out in Paris, and the Grand Palais is also closing its doors this weekend.

RER: which lines will be closed on September 26 and 27, 2026?

Three RER lines are affected by works. The RER E is the most affected, with a large portion of the line out of service for two days. On the pope’s Mass side, no RER station is announced closed at this stage.

• RER C : Saturday, September 26 and Sunday, September 27, until 5 p.m., service is suspended between Invalides and Juvisy, and between Invalides and Massy-Palaiseau. Juvisy becomes the terminus for trains from Dourdan and Saint-Martin-d'Étampes.
  
  
• RER C : Sunday, September 27 from 5 p.m., service resumes, notably calling at Musée d'Orsay, Saint-Michel Notre-Dame, Paris-Austerlitz and Bibliothèque François Mitterrand.
  
  
• RER C : Sunday, September 27 from 11 p.m., traffic is once again interrupted between Paris-Austerlitz and Dourdan-la-Forêt.
  
  
• RER D : Saturday, September 26 and Sunday, September 27 from 11:15 p.m., service is interrupted between Gare de Lyon and Juvisy, as well as towards Combs-la-Ville - Quincy.
  
  
• RER E : Saturday, September 26 and Sunday, September 27, all day, service is suspended between Nanterre-La Folie and Tournan. This arrangement repeats every weekend until November 1 inclusively.
  
  
• RER E : Saturday, September 26 and Sunday, September 27 from 10:45 p.m., service is also interrupted between Nanterre-La Folie and Chelles-Gournay. This pattern repeats each weekend through October 24 inclusively.

To work around the RER C shutdown, RATP recommends taking the RER B, metro lines 7 and 14, tramways T7 and T9, or city buses. To reach Orly Airport from central Paris, line 14 remains the most straightforward option. The day-by-day details are available on the interactive RER C works calendar. On the RER E, the RER A can help you reach the eastern Île-de-France, but it’s wise to check substitution buses on the Île-de-France Mobilités app.

Transilien: Lines N, P and R affected this weekend

Transilien trains also face their fair share of outages, especially in Seine-et-Marne. A consideration to bear in mind if you’re planning a getaway to Provins, Coulommiers, or Montereau.

• To be read
• Weekend of September 25–27 in Paris: the lineup of outings you won’t want to miss
• Metro and RER updates: closures, work, and demonstrations in Paris this Thursday September 24, 2026
• This week’s best bets for Sept. 21–27, 2026 in Paris and Île-de-France

• Line N: Sunday, September 27, from 10:20 p.m., service is interrupted from Rambouillet to Gare Montparnasse.
  
  
• Line P: Saturday, September 26 and Sunday, September 27, service is interrupted between Gare de l'Est and Coulommiers, as well as between Gare de l'Est and Provins. This pattern repeats every weekend through October 11 inclusive.
  
  
• Line P: Sunday, September 27, from 10:45 p.m., service is interrupted between Gare de l'Est and Château-Thierry.
  
  
• Line R: Saturday, September 26, from 11:15 p.m., service is interrupted between Gare de Lyon and Melun.
  
  
• Line R: Saturday, September 26 and Sunday, September 27, service is interrupted between Melun and Montereau via Héricy.

Tramway: T5 and T7 disrupted

• T5 : Sunday, September 27, from 1:30 p.m. to 5:30 p.m., traffic will be suspended between Garges-Sarcelles and Les Cholettes due to a cultural event.
  
  
• T7 : Saturday, September 26, from 4:30 p.m. to 6:30 p.m., the Caroline Aigle stop will not be served for safety reasons.

Bus: stops suspended and replacement buses

At the request of the Police Prefecture, numerous bus stops are being suspended in the 7th arrondissement on Saturday, September 26, from 8 a.m. to 8 p.m., in both directions, for the pope's Mass. All the details are in our article on the stations and bus disruptions on September 26.

• Bus 28: Pont des Invalides to Place de Finlande; La Tour-Maubourg to Saint-Dominique.
• Bus 42: Bosquet to Rapp.
• Bus 63: Lille to Université; Pont de la Concorde; Pont Alexandre III; Pont des Invalides to Place de Finlande; Rue du Bac to René Char.
• Bus 68: Solférino to Bellechasse; Musée d'Orsay; Valéry Giscard d'Estaing.
• Bus 69: Valéry Giscard d'Estaing; Musée d'Orsay; Solférino to Bellechasse; Bosquet to Saint-Dominique; Saint-Pierre du Gros-Caillou; Esplanade des Invalides; Bourgogne.
• Bus 73: Assemblée nationale; Lille to Université; Musée d'Orsay.
• Bus 80: Bosquet to Rapp.
• Bus 83: Solférino to Bellechasse; Lille to Université; Pont de la Concorde; Invalides.
• Bus 84: Solférino to Bellechasse; Lille to Université; Assemblée nationale; Rue du Bac to René Char.
• Bus 87: Valéry Giscard d'Estaing; Assemblée nationale; Pont de la Concorde; Invalides.
• Bus 92: Bosquet to Rapp.
• Bus 93: Pont Alexandre III.
• Bus 94: Solférino to Bellechasse; Lille to Université; Assemblée nationale.
• Bus de remplacement RER C: a service operates between Pont de Rungis and Massy-Palaiseau during weekend closures, then between Paris-Austerlitz and Dourdan-la-Forêt on Sunday evening.
• Bus de remplacement RER D: intermediary stations between Gare de Lyon and Juvisy are served by bus on Saturday and Sunday evenings.

As during every phase of the project, the replacement buses take over on most disrupted sections. Their stops and timetables are listed in the Île-de-France Mobilités, RATP, and Transilien apps. A quick check before you head out beats a long detour once night falls.

RATP strike: what to expect after the weekend?

A quick heads-up for what’s ahead. The CGT-RATP has filed an unlimited strike notice unlimited strike notice effective from Monday, September 28, 2026 at 7 p.m.. The weekend isn’t affected, but the return to work could be complicated. Traffic forecasts are usually published the day before by the RATP.

How to get out and about despite the construction work?

For the weekly overview, our weekly snapshot of disruptions from September 21 to 27, 2026 covers all evening outages. To follow the network day by day, head to our metro, RER and Transilien traffic updates, continuously refreshed. Just passing through Paris? Our guide on transport passes since the end of the paper ticket helps you pick the right option.

And if these disruptions don’t put you off, our ideas for weekend outings in Paris and Île-de-France are here to spark your plans. On the western edge of Île-de-France, our 10 outings in the Yvelines also offer plenty of escapes from the crowded quays.

Metro and RER updates: closures, work, and demonstrations in Paris this Thursday September 24, 2026
In a flash, get all the latest updates on traffic and transportation in Paris, refreshed in real time. Whether it's the Metro, RER, or Transilien services operated by RATP, construction work, ongoing circulation, major events, or demonstrations — we provide all the essential information you need before heading out in Paris this Thursday September 24, 2026. [Read more]

Paris and Île-de-France transport: Metro and RER disruptions from September 21 to 27, 2026
Public transport in Paris and the Île-de-France region is set for widespread disruptions from Monday, September 21 to Sunday, September 27, 2026. Ongoing works mean sections of the metro, the RER, the Transilien lines, and several tramways will be closed. [Read more]

This page may contain AI-assisted elements, more information here.