Transilien line K: disruptions, interruptions and real-time traffic news

Published by Laurent de Sortiraparis, Rizhlaine de Sortiraparis · Updated on September 9, 2025 at 06:22 p.m.
What is the current traffic situation on line K of the Transilien network? In the event of a strike or industrial action, this train line linking several towns in the Paris region may experience major disruption. Here you'll find all the real-time information you need to plan your journeys.

Launched in 2001, line K of the Transilien SNCF network is a 61 km train line serving 10 stops and linking 13 communes. From Gare du Nord, in the 10ᵉ arrondissement of Paris, it crosses Seine-Saint-Denis with a stop at Aulnay-sous-Bois, continues into Seine-et-Marne and reaches its terminus at Crépy-en-Valois, in Oise, beyond theÎle-de-France region. In the event of a strike or industrial action, traffic on the K line may be disrupted or interrupted, which is why it's important to follow the traffic news in real time.

From Gare du Nord, Transilien line K connects with lines 2, 4 and 5 of the Paris metro, as well as RER lines B, D and E, transilienne line H and tramway line T4. Serving mainly towns to the north of the capital, the K line brings passengers close to theEspace Gainville exhibition center in Aulnay-sous-bois, the Parc Départemental du Sausset, the second largest green space in Seine-Saint-Denis, as well as some of Seine-et-Marne 's historic treasures, including the Château de Nantouillet and the Collegiate Church of Notre-Dame de Dammartin.

Want to find out abouttraffic conditions on the Transilien SNCF K line? We're sharing real-time information about this Paris region train line. Current and future disruptions, work in progress, strikes, technical incidents, slow or interrupted traffic, cancelled trains- here's what's happening on the Transilien K line.

  • Major Summer Projects 2026: July 25 to August 16:
    Période : toute la journée
    Dates : du 25 juillet au 16 août- Gare du Nord <> Mitry-Claye : trafic interrompu
    Itinéraires recommandés :
    - Pour rejoindre les gares entre Gare du Nord et Mitry-Claye : RER B au départ de Gare du Nord
    A noter :
    - Forte affluence à prévoir en gare et à bord des trains
    - Les horaires peuvent être modifiées
    Nous vous invitons dans la mesure du possible à limiter ou reporter vos déplacements.
    Motif : travaux sur le réseau ferré (remplacement de 26 aiguillages dans le secteur de Gare du Nord)
  • Line K: Paris-Nord and Mitry interrupted over the weekend of August 29–30:
  • Line K: Between Paris Nord and Aulnay-sous-Bois from 12 to 13/09:

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