Home » About Transportation Major Roadways: Interstate 86 runs east/west through our region. U.S. Route 219 runs north/south through our region. Airports: Olean Municipal Airport is located in Ischua. Dayton Airport is located in Dayton. Great Valley Airport is located in Great Valley. Bussing: The City of Olean has busing that covers the entire city. The Village of Ellicottville has busing that also travels to the Seneca-Niagara Casino, located in Salamanca. ‹ Newspapers & Magazines up Printer-friendly version Email this page Photos tagged as #EnchantedMountains or #EMFun. @emountains