Transferring to Chamonix from Geneva
The options are hire car, bus or transfer company.
Hire Car - All of the main companies are there. Budget has been extremely good value for some time but check the others. Only hire from the french side if there is a big price advantage as the return depot is extremely hard to find and takes longer.
Bus - There is a a SAT bus service. It is cheap but a little slow and not door to door.
There are a large number of transfer companies operating between Geneva Airport and Chamonix to your door. Prices typically range from 28 to 40 euros. In peak season they run to the main flights from the UK. All are english speaking. These are the main ones:
Chamonix Shuttles Cham Van Alpybus Cham Express
Geneva Airport Transfers ACT