New York State Route 434 (NY 434) is a state highway located in the Southern Tier of New York in the United States. The route extends for from an intersection with NY 96 in the village of Owego to an intersection with U.S. Route 11 (US 11) in the city of Binghamton. In between, NY 434 passes through the towns of Owego and Vestal. The portion of NY 434 from the Tioga–Broome county line to downtown Binghamton is known as The Vestal Parkway.