Local transportation:
A rate to almost every were in town is 2 soles by taxi, for going another places farther than center you must deal with the driver on how much will cost you the trip before boarding the car.
 
Bus companies also available, there are not a schedule for that only comes and goes from one destination to another, the chipset and easy way to travel from Cusco to the Valley might be this .

Machu Picchu Vacations

Transportation (Peru)
Peru’s system of railroads, highways, and airports has been expanded considerably in the second half of the 20th century. The country’s mountains make surface transport difficult, however. In 1996 Peru had about 72,800 km (about 45,236 mi) of roads, of which 10 percent were paved. The main artery is a section of the Pan-American Highway, which traverses Peru from Ecuador to Chile, covering a distance of about 2,495 km (about 1,550 mi). The Central Highway links Lima and Pucallpa. Peru also has about 1,691 km (about 1,051 mi) of railroads. One trans-Andean line, the Central Railroad, ascends to some 4,815 m (some 15,800 ft) above sea level, the highest point reached by any standard-gauge line in the world. The most notable inland waterway is the Amazon River, which is navigable by ship from the Atlantic Ocean to Iquitos in Peru. Lake Titicaca also serves as a waterway. Leading Peruvian seaports include Callao, Salaverry, Pacasmayo, Paita, and San Juan. The country’s main international airports are situated near Lima, Cusco, Iquitos, and Arequipa. Aeroperú, the national airline, offers domestic and international service.