Transilien K works: dates, times and alternatives for August 2026 Last updated: August 3, 2026
In August 2026, traffic will be interrupted on the Transilien K line. These disruptions have a direct impact on your travel: find the schedule and our tips in this article.
Key dates
Service interruptions are scheduled on the Transilien 
line due to engineering works.
🚫 Interruption between Gare du Nord and Mitry-Claye
- From July 25 to August 16, 2026 inclusive. To reach stations between Gare du Nord and Mitry-Claye, please take the RER B departing from Gare du Nord Grandes Lignes. Please note that heavy crowds are expected at the station and on board the trains.
- From Saturday August 29 to Sunday August 30 inclusive. Please take line K between Crépy-en-Valois and Mitry-Claye, then a line B train at Mitry-Claye station and Paris-Nord.
Adapt your journeys with the Bonjour RATP app
🔎 Find the best route
Start a route search: the results anticipate disruptions to help you avoid areas affected by engineering works. Then customize them according to your needs: schedules, transport modes, lines or stations to avoid…
🚦 Check live traffic updates
Access real-time traffic status via the app's Traffic tab. You can enable personalized alerts to be notified when your lines are affected.
📹 Demo: follow traffic updates with the app
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The Bonjour RATP app, your ally for anticipating disruptions and
finding the best routes during engineering works
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