U.S. Route 66 covered 385.20 miles through Arizona on its historic alignment.
Arizona’s Route 66 ran across the northern part of the state, linking the California border near Topock with the New Mexico border near Lupton. Important communities along the route included Kingman, Seligman, Flagstaff, Winslow, Holbrook, and several smaller desert settlements.
The Arizona section followed different alignments over time. The original road passed through the Black Mountains and Oatman before later routing changes created a more direct connection through Yucca and Kingman. Mileage figures can therefore differ when sources measure different historical alignments.
Today, Interstate 40 parallels much of the former highway, but substantial surviving segments remain associated with Historic Route 66. Arizona’s portion is especially recognizable for desert scenery, trading posts, neon signs, preserved bridges, and roadside attractions that draw visitors during the road’s 2026 centennial.