The closes airport to Sestriere is Turin Airport (IATA: TRN), located a bit more than 100 kilometres away from the ski resort. From the airport it is normally a 1 hour and 40 minute drive if you rent a car or book a taxi. You can also take the train to the village Oulx from where you can either take a taxi (about 30 minutes drive) or a bus. If you can't find any flights to Turin you can also fly to Milan Malpensa Airport (IATA: MXP). Milan Malpensa Airport is a larger international airport located about 230 kilometers from Sestriere. It is a considerably longer drive from here though, about 3 hours. Another option is to take a train to Turin and then follow the same options mentioned above for traveling to Sestriere.