European route E66

European route E66 is a part of the International E-road network. This Class A intermediate west-east route runs 651 km from Franzensfeste in Italy to Székesfehérvár in Hungary, connecting the Alps with the Pannonian Plain.

Itinerary
The E 66 routes through three European countries:


 * 🇮🇹 Italy
 * : Franzensfeste (with connection to European route E45) - Innichen - Winnebach
 * 🇦🇹 Austria
 * : Arnbach - Silian - Lienz - Oberdrauburg - Spittal an der Drau
 * : Spittal an der Drau - Villach
 * : Villach - Klagenfurt - Graz - Riegersdorf
 * : A2 (Riegersdorf) - Dobersdorf
 * : Dobersdorf - Heiligenkreuz im Lafnitztal
 * 🇭🇺 Hungary
 * : Rábafüzes/Szentgotthárd - Körmend - Veszprém - Székesfehérvár.

Hungary requested in October 2011 that E66 should be extended from Székesfehérvár via Dunaújváros - Kecskemét to Szolnok. This has not taken effect, so in 2019 Hungary requested the same extension Székesfehérvár – Szolnok again.