


Are you waiting for the right time to book your next train trips without breaking the bank? Good news: SNCF Voyageurs is relaunching its promotion "Unbelievable Days" for the third consecutive year. Throughout the month of September, hundreds of thousands of tickets at rock-bottom prices will go on sale for travel to Ouigo, TGV InOui, Intercités, and TER, with even a few trips to Europe. Spoiler : You can find tickets starting at €2—it would be a shame to miss out, wouldn't it? We'll explain everything.
Every year since 2023, SNCF Voyageurs has been organizing A Month Full of Special Offers on its long- and medium-distance trains. The 2025 edition offers several rounds of flash sales : Low-cost tickets, a variety of destinations… But be warned: the best deals sell out fast!
In short, there's something for everyone. Whether you're traveling by Ouigo (starting at €19), in Daytime or nighttime Intercités trains (for €19),) in TGV InOui (starting at €29), or even in Regional TER trains (starting at €2), you should be able to find what you're looking for.
If you want to take advantage of the best deals, here are the dates to keep in mind:
- September 3 & 4, 2025 — 200,000 Ouigo tickets (High-Speed and Classic) on sale at €19 max, for trips between the September 8 and December 13, 2025.
- Starting September 9, 2025 — Offers TER by Region :
- September 10–12, 2025 — Offers Intercity at a bargain price:
- September 17–23, 2025 — Offers in Europe :
- September 23–27, 2025 — The grand finale:
No discount on Advantage Cards for the second consecutive year. However, the Liberté Card switch to promo mode: €299 with a business contract (or €349 without), with flexible tickets, price caps all year round, and up to -45% in Business First Class.
For all our tips (not just during the operation), check out our A Complete Guide to Getting Cheaper Train Tickets.

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How to save money on your train ticket?
Sales are made through SNCF Connect and the usual distribution channels. As always, first come, first served (supplies are limited)! A quick tip: Get your shopping cart ready now and mark the dates on your calendar so you don’t miss out on the sale you’re interested in.
For more tips and inspiration on low-carbon travel, you can subscribe to our Locomissive, delivered to your inbox for free every other Thursday:
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Issue du monde de la communication et des médias, Sophie est Responsable éditoriale chez HOURRAIL ! depuis août 2024. Elle est notamment derrière le contenu éditorial du site ainsi que La Locomissive (de l'inspiration voyage bas carbone et des bons plans, un jeudi sur deux, gratuitement dans ta boîte mail !).
Convaincue que les changements d’habitude passent par la transformation de nos imaginaires, elle s’attache à montrer qu’il est possible de voyager autrement, de manière plus consciente, plus lente et plus joyeuse. Son objectif : rendre le slow travel accessible à toutes et tous, à travers des astuces, des décryptages et surtout, de nouveaux récits.