Paris and the Île-de-France region are facing significant public transport disruptions from July 20 to 26, 2026, as RATP and SNCF undertake their most extensive summer maintenance operations. This week marks the peak of summer works, affecting numerous Metro, RER, and Transilien lines. Passengers are strongly advised to anticipate their journeys and utilize alternative transport options.
Metro Line Closures and Disruptions This Week
Several Metro lines are impacted by closures and service changes:
- Line 4: Closed between Les Halles and Montparnasse-Bienvenüe from Monday, July 20, to Friday, July 24, for infrastructure work. Service resumes on Saturday.
- Line 8: République station will not be served starting Wednesday, July 22, due to renovation work. Passengers should use nearby stations.
- Line 12: Closed between Concorde and Jules Joffrin from Monday, July 20, to Sunday, July 26, for preparatory work for the new MF19 rolling stock. Bus lines 42, 60, and 80 will be reinforced.
- Line 13: Châtillon-Montrouge station is closed until July 26 for escalator replacement and adaptation for the future Grand Paris Express Line 15. The temporary terminus is Malakoff-Rue Étienne Dolet.
RER B: Major Interruptions from July 25
The RER B line will undergo a flagship operation this summer:
- From Saturday, July 25: The line will be interrupted between Gare du Nord and Bourg-la-Reine to replace 40 underground switches.
- Duration: Until August 6 for the Bourg-la-Reine branch and until August 16 for the Mitry-Claye/Aéroport Charles de Gaulle 2 branch.
- Compensation: Orlyval will be free for Navigo pass holders during the works to facilitate airport access.
- Additional Interruptions:
- July 24 from 10:45 PM: Traffic interrupted between Aéroport Charles de Gaulle 2-TGV/Mitry-Claye and La Croix de Berny/Robinson.
- July 25 to August 16, from 10:45 PM: Traffic interrupted between Châtelet-Les Halles and Mitry-Claye/Aéroport Charles de Gaulle 2-TGV.
Other RER Line Disruptions (July 20-26)
Other RER lines also face significant interruptions:
- RER A: Nation station is not served until August 30 due to waterproofing and platform redevelopment. Access is available via Metro lines 1, 2, 6, and 9.
- RER C: Heavily affected with widespread interruptions until August 22 for track and catenary replacement, flood protection at Invalides, and finalization of the interconnection with the future Line 15 South at Issy-les-Moulineaux.
- Until July 31 (Mon-Fri from 9:00 PM): Traffic interrupted between Gare d’Austerlitz and Dourdan.
- Until July 31 (Mon-Fri from 10:20 PM): Traffic interrupted between Gare d’Austerlitz and Pont de Rungis Aéroport d’Orly.
- Until July 31 (Mon-Fri from 11:00 PM to 3:00 AM): Traffic interrupted between Gare d’Austerlitz and Juvisy, and from 11:00 PM between Gare d’Austerlitz and Saint-Martin-d’Étampes.
- Until July 26 (Sundays from 9:07 PM): Traffic interrupted between Gare d’Austerlitz and Dourdan, and from 9:40 PM between Gare d’Austerlitz and Saint-Martin-d’Étampes.
- July 19-26 (Sundays from 8:55 PM): Traffic interrupted between Gare d’Austerlitz and Saint-Martin-d’Étampes, and from 11:00 PM to 3:00 AM between Gare d’Austerlitz and Dourdan.
- Until August 30: Orly Ville stop not served towards Versailles Château Rive Gauche.
- RER D: Night works continue with a central closure from July 25.
- Until July 31 (Mon-Fri from 11:15 PM): Traffic interrupted between Gare de Lyon and Melun, and between Gare de Lyon and Corbeil-Essonnes/Melun, and between Corbeil-Essonnes and Melun.
- Until July 31 (Mon-Fri from 11:35 PM to 2:00 AM): Traffic interrupted between Creil and Gare du Nord.
- Until July 31 (Mon-Fri from 11:00 PM to 5:00 AM): Traffic interrupted between Corbeil-Essonnes and Malesherbes.
- July 25 to August 16: Traffic interrupted between Gare du Nord and Gare de Lyon.
- July 25-26 (weekends from 11:10 PM): Traffic interrupted between Gare de Lyon and Villeneuve-Saint-Georges, and between Villeneuve-Saint-Georges and Melun.
- July 26 (11:20 PM to 4:30 AM): Traffic interrupted between Juvisy and Corbeil-Essonnes.
- RER E: Reduced service all week and numerous weekend interruptions.
- Reduced service (one in two trains during peak hours on Tournan axis, one in two trains all day on Villiers-sur-Marne axis) due to preparatory works for future Line 15 platforms.
- Until September 4 (Mon-Fri from 10:45 PM): Traffic interrupted between Nanterre-La Folie and Chelles-Gournay.
- Until July 26 (weekends from 10:45 PM to 1:50 AM): Traffic interrupted between Nanterre-La Folie and Chelles-Gournay.
- Until August 2 (weekends from 9:30 PM): Traffic interrupted between Nanterre-La Folie and Tournan.
- Until August 7 (weekends from 10:00 PM to 2:30 AM): Traffic interrupted between Nanterre-La Folie and Tournan.
- July 26: Traffic interrupted between Nanterre-La Folie and Haussmann-Saint-Lazare, and between Nanterre-La Folie and Magenta towards Tournan.
Transilien Line Impacts (July 20-26)
The Transilien network is also heavily affected by ongoing works:
- Line H: Until July 31 (Mon-Fri from 11:35 PM to 4:30 AM): Traffic interrupted between Épinay-Villetaneuse and Ermont-Eaubonne.
- Line J:
- July 20 to August 14 (Mon-Fri from 9:40 PM): Traffic interrupted between Gare Saint-Lazare and Mantes-la-Jolie via Poissy.
- July 25 to August 2 (weekends): Traffic interrupted between Gare Saint-Lazare and Mantes-la-Jolie via Poissy.
- Line K: July 25 to August 16: Traffic interrupted between Gare du Nord and Mitry-Claye.
- Line L: Until August 7 (Mon-Fri from 10:10 PM): Traffic interrupted between Gare Saint-Lazare and La Défense. July 25 (Saturday from 10:05 PM to 3:00 AM): Traffic interrupted between Versailles Rive Droite and Saint-Cloud.
- Line N:
- Until July 23 (Mon-Fri from 1:00 AM): Traffic interrupted from Gare Montparnasse towards Versailles Chantiers.
- Until July 31 (Mon-Fri from 10:00 PM): Traffic interrupted from Gare Montparnasse towards Mantes-la-Jolie.
- July 25 (11:30 AM) to July 26 (4:30 PM): Traffic interrupted between Épône-Mézières and Mantes-la-Jolie.
- Line P: The most impacted Transilien line.
- Until August 9: Traffic interrupted between Meaux and La Ferté-Milon.
- Until August 23: Traffic interrupted between Gare de l’Est and Coulommiers.
- Until July 26 (weekends from 11:00 PM): Traffic interrupted between Gare de l’Est and Château-Thierry.
- Until August 2 (weekends from 9:30 PM): Traffic interrupted between Gare de l’Est and Provins.
- Until August 28 (Mon-Thu from 9:00 PM to 2:30 AM): Traffic interrupted between Gare de l’Est and Château-Thierry.
- Until September 4 (Mon-Fri from 8:10 PM): Traffic interrupted between Gare de l’Est and Coulommiers, and from 9:45 PM between Gare de l’Est and Provins.
- Line R: Until July 31 (Mon-Fri from 11:15 PM): Traffic interrupted between Gare de Lyon and Montargis/Montereau. July 25-26 (weekends from 11:10 PM): Traffic perturbed on the entire line.
- Line U: July 20-23 (Mon-Thu from 11:00 PM): Traffic interrupted between La Défense and La Verrière. July 25 (Saturday from 11:00 PM): Traffic interrupted on the entire line.
How to Plan Your Journey This Week
This week, from July 20 to 26, 2026, marks the peak of summer works and requires careful planning. Key disruptions include the RER B closure from Saturday, July 25, between Gare du Nord and Bourg-la-Reine, with complimentary Orlyval for Navigo pass holders. The RER D will also be interrupted between Gare du Nord and Gare de Lyon from July 25 until August 16. Metro Line 12 is cut between Concorde and Jules Joffrin, with reinforced bus services (42, 60, 80). République station on Line 8 will not be served starting Wednesday. The RER C remains largely interrupted until August 22.
Île-de-France Mobilités recommends using transport applications like Bonjour RATP and SNCF Connect for real-time updates. If you plan to travel late at night, consider using Noctilien bus lines, which operate throughout the night. Good luck navigating this busy week!
Source: sortiraparis.com
