The official address to the start/finish line is:
Feriendorf 1, CH-3984 Fiesch, VS, Schweiz
From Geneva Airport: about 2h 45min (225 km)
From Zürich Airport: about 3h 10min (187 km)
By public transportation:
From Geneva Airport: about 3h 30min
From Zürich Airport: about 3h 10min
If you plan to drive from the airport to the race start, we recommend landing in Zürich. The drive is incredibly scenic especially driving along the Vierwaldstättersee, through Göschen and Andermatt, over the Furkapass, down the valley towards the race starting line. Parking at the sport resort is for free.
If you plan to take the train then the resort has its own train station "Feriendorf - Fiesch" and you arrive, literally, right at the race start/finish location.