Transilien H works: dates, times and alternatives from August to September 2026 Last updated: August 3, 2026
From August to September 2026, traffic is disrupted on the Transilien H line. These disruptions have a direct impact on your journeys: find the schedule and our advice in this article.
Key dates
🚧 Reduced traffic between Gare du Nord and Persan-Beaumont (via Valmondois)
From July 27 to August 14, 2026 inclusive, on weekdays, all day long.
- Heavy crowds expected at the station and on board the trains
- Timetables may be modified
- Departure platforms from Gare du Nord may be changed, please pay close attention to station displays.
🚧 Reduced traffic between Gare du Nord and Persan-Beaumont (via Montsoult-Maffliers)
From July 27 to August 14, 2026 inclusive, on weekdays, all day long.
- Heavy crowds expected at the station and on board the trains
- Timetables may be modified
- Departure platforms from Gare du Nord may be changed, please pay close attention to station displays.
🚫 Service interruption Sarcelles St Brice <> Persan Beaumont / Luzarches
From August 3 to 21, on weekdays from 10:30 p.m.
Alternatives
Trains will run from Paris Nord to Sarcelles St Brice, and replacement bus services will be provided:
- Sarcelles < > Persan
- Sarcelles < > Luzarches
🚫 Service interruption Sarcelles St Brice <> Persan Beaumont / Luzarches
From August 24 to October 9, on weekdays from 9:00 p.m.
Alternatives
Trains will run from Paris Nord to Sarcelles St Brice, and replacement bus services will be provided:
- Sarcelles < > Persan
- Sarcelles < > Luzarches
🚫 Service interruption Pontoise <> Ermont-Eaubonne
From August 31 to September 18, on weekdays from 11:35 p.m.
Alternatives
A replacement bus service will operate from Ermont-Eaubonne station, serving the intermediate stations.
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 zones. 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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