From Germany:
A7 motorway to Kempten – Füssen – Fernpass - Imst – A12 via Landeck – B171 in direction Ischgl or A96 via Lindau - Bregenz - St. Anton - Ischgl - B188 or A8 Munich – Rosenheim – Kufstein – A12 until Landeck and then on B188 in direction Ischgl
From Switzerland and France:
Zurich - St. Gallen – Bregenz – Feldkirch – Arlberg - St. Anton - Ischgl - B188
From Italy:
Across the Brennerpass to Innsbruck – A12 bis Landeck – B171 to Ischgl