Saskatchewan Highway 646
# Saskatchewan Highway 646

Highway 646 is a highway in the Canadian province of Saskatchewan. It runs from the Demaine Access Road near Demaine to Highway 45 near Birsay. Highway 646 is about 46 km (29 mi.) long.

Highway 646 also connects with Highways 737 and 42. At the intersection with Highway 42 is the community of Lucky Lake.

