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Chile's main air hub for both national and domestic flights is Aeropuerto Internacional Arturo Merino Benítez. It's 16km west of central Santiago.
LATAM Airlines and Aerolíneas Argentinas run regular domestic and regional services from here, as do low-cost Chilean carriers Sky Airline and JetSmart. Low-cost Brazilian carrier Gol has services to major Brazilian cities, including São Paulo, Salvador and Rio. Other international airlines that fly to Chile have offices or representatives in Santiago.
Two cheap, efficient bus services connect the airport with the city center: Buses Centropuerto and Turbus Aeropuerto. Both leave from right outside the arrivals hall, and you can buy tickets on board. The total trip takes about 40 minutes. All buses stop at metro station Pajaritos on Línea 1 – you avoid downtown traffic by transferring to the metro here.
A pushy mafia of 'official' taxi drivers tout their services in the arrivals hall. Although the ride to the city center should cost around CH$18,000, drivers may try to charge much more. A simpler bet is to approach the desk of Transvip, which offers shared shuttles (from CH$7000) to the Centro. Trips to Providencia and Las Condes cost slightly more.