Travel by Air
For the independent traveller there are cheap flights to Turin, Nice, Grenoble, and Lyon. There are flights to Turin from London Gatwick (British Airways), London Stansted (Ryanair) and Luton (Easyjet).
Turin is the nearest. It is a modern spacious airport just off the main autostrada well placed for driving to Serre Chevalier. There is a good choice of car hire companies for self drive. Make sure that your hire car has winter tyres or has snow chains available. This is a legal requirement for driving in the mountains in winter.