Another difficult weekend on the RER B. This Saturday, November 14, and Sunday, November 15, 2026, a local labor action is reducing service on the line’s northern branch, in Seine-Saint-Denis (93), Val-d'Oise (95) and Seine-et-Marne (77), as far as Roissy-Charles de Gaulle Airport. To the south, toward Hauts-de-Seine (92) and Essonne (91), trains are running almost normally.
This is already the second weekend in a row: the line saw a similar action on November 7 and 8. The operators have not made public the precise reason for this local strike.
According to the forecasts published on the official B line website, service is expected to operate as follows on the two days:
Still, there’s good news: you won’t need to change trains at Gare du Nord. You can travel across Paris from south to north without switching trains. Detailed timetables are available in the RER B timetables section, and live service updates on the RATP traffic information page.
With one in four trains cut, platforms are likely to be busier and waits a little longer, especially if you have suitcases. If you have a flight to catch, the simplest option is still to leave earlier than usual and check your train just before you leave home.
To avoid the RER B, the Express bus 9517 connects Argenteuil, Saint-Denis and the airport, with a connection to line 14 at Saint-Denis Pleyel. An alternative worth keeping in mind, especially since the Roissybus has not been running since March 1, 2026.
Another point to note: there are no service disruptions for engineering works on the RER B this weekend. The evening suspension from 10:45 p.m. between Châtelet-Les Halles and the airport applies only on weekdays.
The RER B is not the only line to watch. The RER D will not run between Paris Nord and Gare de Lyon on Saturday and Sunday, and Metro line 12 is closed between Jules Joffrin and Mairie d'Aubervilliers. On Saturday afternoon, the demonstration against the rising cost of living between République and Nation will also lead to station closures in central Paris.
To see everything at a glance, we’ve put together our traffic updates for the day on the Metro, RER and trains, along with an overview of disruptions this week, from November 9 to 15, 2026.
The line will not immediately return to its usual schedule. According to RATP, from Monday, November 16, to Friday, December 11, service will be suspended every weekday evening from 10:45 p.m. between Châtelet-Les Halles and Mitry-Claye / Aéroport Charles de Gaulle 2, with replacement buses. The following weekend, on November 21 and 22, the line will be completely closed between Aulnay-sous-Bois and Mitry-Claye for maintenance work.
Also keep an eye on Tuesday, November 17, a day of cross-industry strikes. At SNCF, a strike notice issued by CGT-Cheminots is in effect until December 15, and RATP is due to publish its service forecasts on Monday, November 16. On November 5, the previous day of industrial action, the RER B was running at half service north of Paris, as we reported in our article on the November 5 strike.
Dates and Opening Time
From November 14, 2026 to November 15, 2026
Official website
maligneb.fr
