The Adirondack Northway (Interstate 87) is a major north-south highway that begins at the Canada–United States border at Champlain and travels south to Albany, connecting to the New York State Thruway. U.S. Route 9 parallels I-87, and U.S. Route 11 runs east-west across the town. U.S. Route 2 intersects US-11 by Rouses Point. New York State Route 9B intersects US-11 in the northeast and US-9 in the southern part of Champlain, providing a highway closer to Lake Champlain. New York State Route 276 partly runs along the international border.