To use public transport, It is recommended to buy a prepaid card Bip. This card is used in subway and buses. 

Santiago's subway has five lines. The main line (1) runs modern trains along the central East-West axis Alameda - Providencia - Apoquindo serving the center as well as the newer business districts of Providencia and Las Condes. At Los Héroes, Baquedano and Tobalaba stops, you can change to one of the three lines connecting the southern parts of the city to the center. The fiths line is in the South. You can check the map on the website subway .

Tickets cost between 610 and 720 pesos (about USD 0.95 - 1.10), depending on time of day, and include transfers. There is no timetable. But usually the metro runs every 2-3 minutes. 

The urban buses are called “micros” and the city buses system is called “Transantiago”. There are mainline buses that are white and green that circulate across the big thoroughfares like Alameda, Av. Providencia, etc. and feeder buses (with different colors) that connect with the city's outskirts. The most important stops of the route are listed in the windowshield. In transantiago.cl or the app Transantiagomaster, iTransantiago or Micros, you can look for the bus lines that you need for a specific route. Tickets cost between 640 and 720 pesos (about USD 0.95 - 1.15) and allow the transfer to other buses or the subway. The only way to pay is with the prepaid card Bip. It can be recharged in the metro station or specific selling points

The regular taxis are black cars with their yellow roofs can be hailed anywhere. In Santiago, there is a base price of 300 pesos (USD 0.50) plus around 130 pesos for each 200 m driven (or per minute when waiting). The rates are posted on the windscreen; the meter has to be where you can see it. You can request a radiotaxi by phone. It is more safe and comfortable. Or you can use a mobile application as Safer Taxi or Easy Taxi. Also, you can use Uber and Cabify applications - the legality or illegality of these applications is not regulated even-.