When looking at timetables be aware that they're in French so L = Lundi / Monday, M = Mardi / Tuesday, Me = Mercredi / Wednesday, J = Jeudi / Thursday, V = Vendredi / Friday, S = Samedi/ Saturday & D = Dimanche / Sunday.
Chamonix Bus operate a regular bus service run by that circulates from approximately 07:00 until 19:30 every day, up and down the valley. In winter additional ski buses are added to the network (06:15 to 20:45 approximately) and in summer there's a bike bus. Using the buses is free with certain lift passes or a Carte d'hote (which your accommodation provider can give you). There is also free shuttle service that runs around Chamonix town centre called Le Mulet. This service was named after the mules which were once used in the valley to transport visitors to and from the scenic attractions. The 100% electric mulets run circuits around Chamonix centre where the large buses can no longer pass.
The night bus 'Chamo'nuit' operates from Argentiere to Le Prarion in Les Houches 4 times per night in winter, spring and summer. If you want to use it on weekends or on Mondays, you need to book ahead, from 16:00 on the Friday before you need it. Call +33 (0)4 50 53 05 55 to request your place and which stops you would like.
It takes around 2 hours by bus to get to Chamonix from Geneva airport, as there are a number of stops on the way, regardless of which bus you take. Although it can be much more cost effective to travel this way, you'll find some buses only stop in Chamonix Sud at the bus terminus whilst others stop in Chamonix Centre, so if you're not staying in either of these parts of the valley you'll need to take another bus, train or taxi to get to your accommodation.
Please note that since the end of June 2015, any coaches or airport transfers that previously operated drop offs and pick ups at Chamonix Train Station, are now operating from the Chamonix Sud bus terminus. If you're arriving by train you can take the free Mulet bus from just outside the train station (next to the terrace at the Hotel Gustavia/Chambre Neuf) to get to Cham Sud, for bus connections, or vice versa from the bus terminus to the train station. This services operates all year round, every 10-20 minutes depending on the season.
If you're looking for a more direct route from the airport to Chamonix, also check for airport transfer (shuttle-bus) services.
Since there are three ways in and out of the Chamonix Valley, you can also come on the bus from Martigny in Switzerland. This bus takes you over the Swiss-French border and takes around 1.5 hours. You could also take a bus from Courmayeur in Italy to Chamonix via the Mont Blanc Tunnel which takes around 45 minutes - 1 hour depending on tunnel traffic.
Note that these timetables may vary throughout the year and during holidays so please contact the bus companies in advance to avoid disappointment.
For National & International travel take a look at our Coaches Page.