
Getting around in Chamonix
How to get to Chamonix
Chamonix Mont-Blanc is 2 hours from Lyon and 1 hour from Annecy and Geneva. At the border with Italy and Switzerland, it's a charming mountain resort with all the services of a small town.
Find out all about the best ways to get to Chamonix on the Tourist Office website.
Getting around during the event
Thanks to the partnership signed between Club des Sports, ATMB (Autoroute et Tunnel du Mont-Blanc) and the SNCF the 40,000 people coming to attend or take part in the event will be better supported.
For further information, please consult the transport guide below.
Runner transport
For the start of the 90KM, 10KM and 42KM du Mont-Blanc a shuttle bus and train service free of charge UPON REGISTRATION for runners and their companions to reach Chamonix without using their car.
Transport for accompanying persons
To enable accompanying persons to encourage participants at the various refreshment points, a reinforced transport system with dedicated shuttles is also planned during the event.
90km du Mont-Blanc - Friday June 27, 2025
This year, a train and a shuttle WITH REGISTRATION to Le Buet.
- Train: Departure 6.22 am from Chamonix station to Le Buet BOOK NOW!
- Shuttle: Departure 7.15 am from Chamonix station to Le Buet BOOK NOW!
Organized shuttles will then run between Le Buet and Emosson from 7:30am to 11:00am, then from Emosson to Vallorcine from 9:00am to 4:00pm (departing approximately every 15 minutes). Once in Vallorcine, you'll be invited to take the train back to Chamonix. So don't forget to bring your Carte d'Hôte!
23km du Mont-Blanc - Saturday June 28, 2025
Organization shuttles UPON REGISTRATION will run from the "Médiathèque" stop in Chamonix to Montroc between 8am and 9am. I RESERVE!
For the return journey, organization shuttles will run between Montroc, the Flègère gondola and the Planpraz gondola from 9.30am to 11.30am.
42km du Mont-Blanc - Sunday June 29, 2025
Organization shuttles UPON REGISTRATION will run from the "Place du Mont-Blanc" stop in Chamonix to the Tour between 6.45am and 8.30am. I RESERVE!
Organization shuttles will then run between Le Tour and Vallorcine from 8:30am to 11:00am, then from Vallorcine to Chamonix from 9:00am to 2:00pm.
Public transport in the Chamonix Valley
The Chamonix Valley is served all year round by a public transport network comprising various bus lines and the Mont-Blanc Express train.
Mont-Blanc Express train
The SNCF line serves all villages from Servoz to Vallorcine.
The train is free for holders of a carte d'hôte (given to you on arrival by your accommodation provider) or a carte Via'Cham (residents and workers of the Chamonix valley).
Timetable from June 15 to September 14, 2024
Bus - Chamonix Mobilité
The Chamonix Mobilité urban transport network serves the entire Chamonix valley, from Servoz to Le Tour.
The bus is free only for Via'Cham cardholders (Chamonix valley residents and workers).
However, you can benefit from discounts of up to 50% on bus tickets if you have a carte d'hôte (given to you on arrival by your accommodation provider).
Summer timetable from June 22 to September 8 More info on how to buy your bus tickets
For several years now, ATMB has been working alongside the Mont Blanc Marathon to forge a partnership based on sustainable mobility.
ATMB and Marathon du Mont-Blanc teams are working together to make it easier for runners and spectators to get around throughout the event, and to reduce the event's environmental impact.
On this page, you can find out more about the shuttle service, the city network and the car-sharing scheme.
ATMB is also encouraging more responsible mobility for its customers, and is offering a discount unheard of in France to those who drive an electric vehicle.
Thanks to the Eclaireur offer, you can save up to 50% on tolls on the ATMB network. You'll be able to drive freely on freeways throughout France.
To find out more, click here.

To help you get around during the event, SNCF Voyageurs and the Auvergne-Rhône-Alpes Region are providing extra trains. For Saturday, travel at reduced prices with the illico PROMO fare and enjoy a 40% discount on your TER journey, and for under-12s it's free!