The Higashi-Kantō Expressway (東関東自動車道, Higashi Kantō Jidōsha-dō) (lit.

It is owned and operated by East Nippon Expressway Company.

Just before Miyanogi Junction where the expressway meets the Keiyō Road, the route branches away from the bay and heads inland in a northeasterly direction.

It continues through Chiba Prefecture, though the city of Narita, and crossing the Tone River into Ibaraki Prefecture where the expressway reaches its current terminus in Itako.

The expressway is an important route linking the greater Tokyo area with Narita International Airport.