Chile's airports serve a country whose shape — 4,300 kilometres long and rarely more than 180 kilometres wide — means that transfer distances are always north-south rather than centre-outward. Santiago's Arturo Merino Benítez Airport to specific hotel addresses in Las Condes, Providencia, or Barrio Italia involves a pre-bookable urban transfer of 30 to 45 minutes. For transfers to the Atacama — via Calama airport — or to the Lake District via Puerto Montt airport, pre-arranged road transport with vehicles suited to the terrain and luggage volume is the standard approach. Patagonian transfers from Punta Arenas or Puerto Natales to specific lodges often require 4WD vehicles with drivers who know the Patagonian road conditions.