RER C works: dates, times and alternatives in October 2026 Last updated: October 20, 2026
In October 2026, the RER C line will be closed on certain dates and on several sections. These closures have a direct impact on your journeys: find the schedule and our advice in this article.
Key dates
Disruptions are scheduled on the RER line 
to modernize infrastructure, enhance safety, and improve passenger comfort.
🚫 Disruption Paris Austerlitz <> Saint-Martin d'Étampes (in the evening)
Until Friday, October 2 inclusive
Sundays October 4, 11, 18 and 25
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: replacement buses serving intermediate stations
🚫 Disruption Paris Austerlitz <> Invalides (all weekend)
From Saturday, October 10 to Sunday, October 11
Alternative route: RER D, metro lines, trams, or city bus lines
🚫 Disruption Paris Austerlitz <> Dourdan (in the evening)
From Monday, October 7 to Friday, October 2 inclusive, on weekdays (except Friday, October 11)
Sundays October 4, 11, 18 and 25
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: replacement buses serving intermediate stations
🚫 Disruption Paris Austerlitz <> Juvisy (in the evening)
Via Choisy-le-Roi only: until Friday, October 2
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: replacement buses serving intermediate stations
🚫 Disruption Paris Austerlitz <> Pont de Rungis (in the evening)
Until Friday, October 2 inclusive
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: metro lines 7 or 14, trams T3a, T7, T9, city buses 180, 182, 183, 323, 325, 482, 483 or TVM
🚫 Disruption Choisy-le-Roi <> Juvisy (all weekend)
From Saturday, October 10 to Sunday, October 11
Alternative route: RER D, metro lines, trams, or city bus lines
🚫 Disruption Pont de Rungis <> Massy-Palaiseau (all weekend)
From Saturday, October 10 to Sunday, October 11
Alternative route: replacement buses
🚫 Disruption Avenue Henri Martin <> Pontoise (in the evening)
Until Friday, October 2, on weekdays
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: line H or replacement buses, metro, trams, or city bus 138
🚫 Les Ardoines, Vitry-sur-Seine, and Ivry-sur-Seine stations not served
Until Friday, October 23, on weekdays from 9:45 a.m. to 4:00 p.m.
Alternative route: metro line 7, or local bus routes 180, 182, 323, 325
🚫 Disruption Choisy-le-Roi <> Massy-Palaiseau (all day)
Saturday, October 24 and Sunday, October 25
Alternative route: replacement buses.
🚫 Disruption between Javel <> Versailles-Château / Saint-Quentin-en-Yvelines (in the evening)
Until Friday, October 2 inclusive
From Monday, October 5 to Friday, October 30 inclusive, on weekdays
Alternative route: line N or city bus 169 or 171
🚫 Disruption between Invalides <> Juvisy / Massy-Palaiseau (all weekend*)
Saturday, October 3 and Sunday, October 4
*Special note for Sunday, October 4: from 5:00 p.m., only trains between Musée d'Orsay and Dourdan/Saint-Martin-d'Étampes will run with their normal stopping pattern. Stations located between Bibliothèque François-Mitterrand and Juvisy will remain closed all day.
Alternative route: RER B or D, metro lines, trams, or city bus lines.
Adapt your journeys with the Bonjour RATP app
🔎 Search for the best route
Start a route search: the results anticipate disruptions to help you avoid construction areas. Then customize according to your needs: schedules, transport modes, lines, or stations to avoid…
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Access real-time traffic status via the app's Traffic tab. You can enable personalized alerts to be notified when your lines are affected.
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