A national SNCF strike is planned for tomorrow Wednesday, June 10, 2026. For the first time since late 2024, the four major rail unions—the CGT Cheminots, Unsa Ferroviaire, Sud Rail, and the CFDT Cheminots—have filed a joint 24-hour strike notice. In Île-de-France, passengers on the Transilien lines, the RER networks operated by SNCF, and the TGV services to and from Paris will be the most affected. For a full update on disruptions this week, read our article on transport in Paris and Île-de-France from June 8 to 14, 2026.
Unions are blasting several files at once. At the forefront: internal reorganizations and the group’s subsidiarization, which involves creating local companies to bid on regional rail networks. A portion of the staff is transferred with a "social backpack" guaranteeing their benefits for 15 months. But for Fabien Villedieu of Sud Rail, this device is really only a "social handbag": after 15 months, the agreements lapse and conditions vary widely from one territory to another.
Unions are also pressing for fresh pay rises, arguing that the 2026 increases do not keep pace with inflation. They also flag worsening working conditions: workplace accidents rose by 20% last year, and thirteen staff suicides have been recorded so far this year, an unprecedented trend according to union representatives.
This movement marks Jean Castex's first major social test as he takes the helm at SNCF, named chief executive in November 2025. On arriving, he pledged to preside over a "unified group." The unions are holding him to his word: they demand that the railway workers in the newly formed subsidiaries enjoy the same rights as those in the public group, a claim championed notably by the CGT Cheminots and the Unsa Ferroviaire.
The management, for its part, touts a "constructive social dialogue" and notes that it has signed numerous agreements in recent months. It also points out that SNCF posted a net profit of 1.8 billion euros in 2025 and that none of its 150,000 staff earns less than the minimum wage after a 10% raise. A €1,450 bonus has also been guaranteed for all SNCF group rail workers.
The SNCF has already released its traffic forecast. On the TGV Inoui, Ouigo and TGV Lyria services, the company says that about two-thirds of trains will be in operation. It notes that any passenger whose train is canceled will be contacted again and can opt for a refund or a rebooking. For those who keep their journey, SNCF adds that “thanks to the remaining seats, all customers should be able to travel the same day.”
Intercités services will also be hit hard, with roughly one in two trains running, by day and by night. Affected travelers will enjoy the same terms: a full refund or a free exchange in case of cancellation.
Transilien SNCF Voyageurs has released its detailed outlook for tomorrow. Traffic will be severely disrupted on most RER and Transilien lines. Here’s what to expect:
RER
Transilien
Good news for Île-de-France residents seeking an alternative: the metro, the buses and the trams are not affected by this labor action. Traffic on all of these lines is expected to be normal or near-normal throughout the day. So this is the moment to prioritise these modes if your journey allows. Cycling and walking remain solid options for short trips, especially within Paris proper.
Transilien and Île-de-France Mobilités are also asking travelers who can to shift their train travel outside peak hours, or to work remotely if their job allows.
Detailed train-by-train forecasts are now available on SNCF Connect as of 5 p.m. this evening. If your train is cancelled, you have been or will be notified by email or SMS. All affected tickets, including promotional fares typically non‑refundable, can be fully refunded or exchanged for another train.
To receive this refund, you should contact 36 35 or head to the station before your originally scheduled departure. The refund is credited to the bank card linked to your account within three to five days. If you paid with Chèques-Vacances, the refund is automatically issued as a digital voucher, as noted by SNCF Voyageurs on its site.
Travelers are advised to check real-time traffic conditions directly on SNCF Connect or through the mobility app of their choice before departure, and to have alternative options ready if their trip is essential for tomorrow, Wednesday.
Also worth reading: Public transport in Paris and Île-de-France: Metro and RER disruptions this week, June 8–14, 2026
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