The average train between Rennes and Grenoble takes 7h 55m and the fastest train takes 5h 38m. The train service runs several times per day from Rennes to Grenoble. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run 3 times a day between Rennes and Grenoble. The earliest departure is at 7:40 AM in the morning, and the last departure from Rennes is at 5:30 PM which arrives into Grenoble at 11:39 PM. All services require a transfer, and take on average 7h 55m. The schedules shown below are for the next available departures.

5h 59m • 1 change

5h 38m • 1 change
Arrives next day

14h 9m • 1 change

5h 59m • 1 change

5h 38m • 1 change
Arrives next day

14h 9m • 1 change

5h 59m • 1 change

5h 38m • 1 change
Arrives next day

14h 9m • 1 change
Want to know about travelling from Rennes to Grenoble? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Rennes to Grenoble. However, there are services departing from Rennes station and arriving at Grenoble station via Lyon Part Dieu. The journey, including transfers, takes approximately 7h 55m.
Rennes to Grenoble train services, operated by TGV inOui, depart from Rennes station.
Rennes to Grenoble train services, operated by TGV inOui, arrive at Grenoble station.
Book your Rennes to Grenoble train tickets online with TGV inOui and Société Nationale des Chemins de fer Français (SNCF).
The distance between Rennes and Grenoble is 651.2 km. The road distance is 912 km.
You can take a train from Rennes to Grenoble via Lyon Part Dieu in around 5h 36m.