Travellers relying on the RER B artery between central Paris and Charles-de-Gaulle Airport face significant late-evening disruption from tonight, 9 July 2026. According to the latest traffic bulletin published this morning, RATP will suspend all trains between Châtelet-Les Halles and Aéroport CDG 2 / Mitry-Claye after 22:45 on 9 July and again on Monday 13 July as part of the network’s €2.1 billion summer upgrade programme.
![RER B Night Closures to CDG & Mitry-Claye Begin Tonight]()
International visitors still juggling visa formalities can simplify that part of the trip with VisaHQ’s online processing service, which offers real-time French entry-requirement updates and fast turnaround for dozens of other destinations as well. Full details are available at
Replacement coaches will link Gare du Nord to CDG terminals, but journey times are expected to double to around 90 minutes in late-night traffic. Private-hire vehicles and taxis will also be under strain, particularly with concurrent lane closures on the A1 motorway for resurfacing works. From a mobility-management perspective, the closures coincide with the year’s first major post-pandemic conventions at Paris Nord Villepinte and the fortnightly “Choose France” investor roadshows. Employers bringing delegates into CDG on late flights should secure ground transport in advance or consider routing via Orly, where night rail services remain unaffected. The RER B project involves modernising track-side signalling, platform screen doors at CDG 1 and new ventilation shafts through the City’s historic core. While the most acute impact is limited to two nights this week, further multi-night closures are scheduled throughout July and August, culminating in a two-week shutdown of the Gare du Nord–Bourg-la-Reine stretch starting 25 July. Travel managers are advised to integrate the RATP disruption calendar into duty-of-care alerts and to warn staff about last-train cut-offs. Passengers who miss the final northbound service at 22:40 will be directed to the surface bus hub outside Gare du Nord, where queues of 30–45 minutes are typical during works.
International visitors still juggling visa formalities can simplify that part of the trip with VisaHQ’s online processing service, which offers real-time French entry-requirement updates and fast turnaround for dozens of other destinations as well. Full details are available at
Replacement coaches will link Gare du Nord to CDG terminals, but journey times are expected to double to around 90 minutes in late-night traffic. Private-hire vehicles and taxis will also be under strain, particularly with concurrent lane closures on the A1 motorway for resurfacing works. From a mobility-management perspective, the closures coincide with the year’s first major post-pandemic conventions at Paris Nord Villepinte and the fortnightly “Choose France” investor roadshows. Employers bringing delegates into CDG on late flights should secure ground transport in advance or consider routing via Orly, where night rail services remain unaffected. The RER B project involves modernising track-side signalling, platform screen doors at CDG 1 and new ventilation shafts through the City’s historic core. While the most acute impact is limited to two nights this week, further multi-night closures are scheduled throughout July and August, culminating in a two-week shutdown of the Gare du Nord–Bourg-la-Reine stretch starting 25 July. Travel managers are advised to integrate the RATP disruption calendar into duty-of-care alerts and to warn staff about last-train cut-offs. Passengers who miss the final northbound service at 22:40 will be directed to the surface bus hub outside Gare du Nord, where queues of 30–45 minutes are typical during works.
