U.S. Route 277

U.S. Route 277 (US 277, US-277) is a north–south United States Highway. It is a spur of U.S. Route 77. It runs for 633 miles (1,019 km) across Oklahoma and Texas. US 277's northern terminus is in Newcastle, Oklahoma at Interstate 44, which is also the northern terminus of the H.E. Bailey Turnpike. Its southern terminus is in Carrizo Springs, Texas at U.S. Route 83. It passes through the states of Oklahoma and Texas.