September 18 strike: detailed traffic forecasts for metro, RER and Transilien trains

A week after the mobilization launched by the"Bloquons tout" movement, a new day of strikes and demonstrations is being organized in France against the 2026 budget. This time, it's the intersyndicale (UNSA, CFDT, CGT, FO, CGC, CFTC, Solidaires, FSU) which is calling for a national day of strikes and demonstrations on Thursday, September 18, 2025.

Disruptions are expected in the education, airline, hospital and public transport sectors.

Strike on September 18, trains, flights, schools, demonstrations, health professions, what to expect?
The strike on September 18, 2025 looks set to be particularly well-attended, with major disruptions forecast for the SNCF and RATP transport systems, the airline industry, schools, hospitals and pharmacies. Eight trade union confederations are calling for this cross-industry mobilization against the Bayrou budget. [Read more]

On the SNCF and RATP sides, the mobilization promises to be very closely followed. At a press conference on September 16, Transport Minister Philippe Tabarot warned: " It's going to be a difficult day for public transport users ".

• To be read
• Strike on September 18, 2025: what RATP and SNCF disruptions are expected in Paris and the Île-de-France region?
• Strike on September 18, trains, flights, schools, demonstrations, health professions, what to expect?
• September 18 demonstration in Paris: the "Bloquons tout" movement intends to continue its actions

So, what exactly can we expect? 48 hours before the start of the mobilization, RATP has unveiled its first forecasts. And metro and RER users will have to adapt to the situation this Thursday, September 18, and avoid taking public transport wherever possible.

In detail, RATP is announcing that traffic will be normal on lines 1, 4 and 14 , the only automatic lines on the Paris metro. For the rest, traffic will be disrupted"only during rush hour" on lines 7, 9, 10 and 13. Finally, traffic is expected to be"very disrupted", and again"only during rush hour", on lines 2, 3, 3bis, 5, 6, 7bis, 8, 11 and 12.

What about the RER (RATP zone)? Traffic will be"disrupted" on line A and also"disrupted" on RER B, but with an interconnection maintained at Gare du Nord. For the rest, SNCF Transilien is announcing"disrupted" traffic on RER C, and"heavy disruption" on RED D and RER E.

September 18 strike: detailed traffic forecasts for the metro, RER and Transilien, line by line

Metro traffic forecasts

• Normal traffic
  • Line 1: normal traffic
  • Line 4: normal traffic
  • Line 14: normal traffic
    
    
• Highly disrupted traffic only during rush hours (6:30 - 9:30 and 16:30 - 19:30)
  • Line 7 : Expect 1 train out of 3
  • Line 9: Expect 1 train out of 3
  • Line 10 : Expect 1 train out of 4
  • Line 13: 1 train out of 4
    
    
• Highly disrupted traffic and partial operation of lines, only at the times shown below:
  • Line 2: 1 train out of 3 between Nation and La Chapelle from 6.30am to 10.00am and then from 4.30pm to 7.30pm
  • Line 3: 1 train out of 5 between Pont de Levallois and Havre Caumartin from 6.30am to 9.30am, then from 4.00pm to 7.30pm
  • Line 3bis: 1 train out of 2 from 2:00 pm to 7:30 pm on the entire line
  • Line 5: 1 train out of 5 between Gare du Nord and Bobigny from 6.30am to 9.30am, then from 4.30pm to 7.30pm
  • Line 6: 2 trains out of 5 between Nation and Place d'Italie from 6:30 to 10:30 a.m. and between Nation and Bercy from 3:30 to 7:30 p.m.
  • Line 7bis: 1 train out of 2 only from 6.30am to 9.30am on the entire line
  • Line 8: 1 train out of 3 between Créteil Pointe du Lac and Reuilly Diderot from 7:30 to 9:30 a.m. and 1 train out of 5 from 4:30 to 7:30 p.m.
  • Line 11: 1 train out of 4 on the entire line from 6:30 to 9:30 a.m., then between Rosny and Porte des Lilas from 4:30 to 7:30 p.m.
  • Line 12: 1 train out of 2 between Mairie d'Aubervilliers and Jules Joffrin from 6.30 a.m. to 9.30 a.m. and from 4.30 p.m. to 7.30 p.m.

Stations closed all day

• Arts et Métiers
• Bastille
• Concorde
• Invalides
• Opéra
• Place de Clichy
• République
• Sèvres-Babylone
• Trocadéro
• Villiers

RER forecasts

• RER A:
  • Plan for 3 trains out of 4 at peak times and 2 trains out of 3 at off-peak times on the central section and the Saint-Germain en Laye - Marne la Vallée Chessy - Boissy-Saint-Léger branches.
  • 3 trains out of 4 all day on the Cergy Le Haut - Poissy branches
    
    
• RER B BRANCHES:
  • Plan for 1 train out of 2 on the entire line
  • No train change necessary at Gare du Nord
  • No trains from 22:45 between Gare du Nord and Aéroport Charles De Gaulle 2 TGV/Mitry Claye due to roadworks
    
    
• RER C: expect 2 out of 3 trains
  
  
• RER D:
  • Between Creil and Corbeil Essonnes: expect 1 train out of 2
  • Between Goussainville and Melun: plan 1 train out of 2
  • Between Corbeil Essonnes and Malesherbes: 1 train out of 5 (only between 6am and 9am, then between 5pm and 8pm)
  • Between Juvisy and Melun via Ris Orangis: no trains
  • Between Malesherbes and Paris gare de Lyon: no trains
    
    
• RER E:
  • Expect 1 train out of 2

Tramway forecasts

• Normal or near-normal traffic
  • T1: normal or near-normal traffic
  • T2: normal or near-normal traffic
  • T3a: normal or near-normal traffic
  • T3b: normal or near-normal traffic
  • T6: normal or near-normal traffic
  • T8: normal or near-normal traffic
    
    
• Traffic disruption
  • T5: expect 3 streetcars out of 4
  • T7: expect 1 streetcar out of 2

Transilien forecasts

• Line H: expect 1 train out of 2, except between Pontoise and Creil where 2 trains out of 3 are announced
  
  
• J line: normal or near-normal traffic
  
  
• K line: expect 2 out of 3 trains
  
  
• Line L: expect 2 out of 3 trains
  
  
• Line N: expect 1 train out of 2
  
  
• Line P :
  • Between Paris Est and Meaux: expect 3 out of 4 trains
  • Between Paris Est and Provins: expect 3 out of 4 trains
  • Between Meaux and La Ferté Milon: expect 2 out of 3 trains
    
    
• Line R:
  • Between Paris Lyon and Montereau via Moret: plan 1 train out of 2 (only between 6am and 9am, then between 4.30pm and 10.30pm).
  • Between Paris Lyon and Montargis: expect 1 train out of 2 on average.
  • Between Melun and Montereau via Héricy: expect 1 train out of 3 (only between 6am and 9am, then between 5pm and 7pm).
    
    
• U line: 1 train out of 2
  
  
• V line: 2 trains out of 3