Summary
Due to engineering works, RER A service will be suspended on the following dates:
- February 17 to 21, 2025
February 24 to 28, 2025
No RER A service between Nanterre-Préfecture and Cergy-Le Haut / Poissy from 10 p.m. - March 3 to 7, 2025
No RER A service between Nanterre-Préfecture and Achères-Ville / Poissy from 10 p.m. - March 10 to 14, 2025
Service changes between Nanterre-Préfecture and Cergy-Le Haut from 10 p.m.: due to works, trains to Cergy–Le Haut will exceptionally run via Poissy. Please remain on board at Poissy station to continue to Cergy–Le Haut. - March 15 to 16, 2025
No RER A service between Maisons-Laffitte and Poissy from Saturday 10 p.m. to Sunday 6:30 a.m. - March 17 to 21, 2025
March 24 to 28, 2025
No RER A service between Sartrouville and Cergy-Le Haut / Poissy from 10:15 p.m. - March 22 to 23, 2025
No RER A service between Maisons-Laffitte and Poissy. - March 29 to 30, 2025
No RER A service between Nanterre-Préfecture and Cergy-Le Haut / Poissy.
To adapt your journey
- Consult the X account @RER_A or the
website.
- To plan your travel in advance and see your journey time, please consult the itinerary planner.
- Consult the
map.
- Consult the list of others stations with works and closures in progress.
This page is regularly updated to reflect works and closures on the line.