The Carretera Austral Road Trip — Full Guide (Chile)

Overview

The Carretera Austral is the road Chile built to reach its own south — a 1,240 km ribbon of gravel carved through raw Patagonia between Puerto Montt and the frontier town of Villa O'Higgins. There are no highways here, only ferries, fjords, hanging glaciers and small frontier settlements where the road still ends.

It is not a drive you rush. The reward of going slow is the rhythm of the landscape: emerald lakes under ice caps, forests of lenga and coigüe, and the rare feeling of being genuinely far from everything. The road works in both directions, and the choice is a seasonal one: in summer (November–March) the classic is south-to-north from Puerto Natales, following the good weather north; in the shoulder seasons (October, April) start in Puerto Montt and drive north-to-south, letting the milder climate catch up with you.

Planning the drive

The road is mostly unpaved, so a high-clearance car — ideally an SUV or 4x4 — is strongly recommended: expect washboard gravel, river crossings and sections that close after heavy rain. If you plan to cross into Argentina (Futaleufú or Los Antiguos–Chile Chico), confirm the rental allows border exits and comes with the vehicle permit — it is shown when leaving Chile and again when entering Argentina, and the same on the way back. Fuel is scarce beyond Coyhaique, so plan around the pump towns (Cochrane is the last reliable station until Villa O'Higgins).

Book the two mandatory ferries (Caleta La Arena and Punta Yungay near Hornopirén) in advance during December–February — and in peak season book accommodation and the route's day-trip attractions (marble-cave boats, glacier cruises, hot springs) at least a few days ahead too: the settlements along the road hold few beds, and leaving it to the road means pricier, worse options — or none at all. Cash is essential in the small settlements; card terminals are rare south of Coyhaique.

One-way rentals are the norm. The classic pickups and drops run Puerto Natales → Puerto Montt, or El Calafate → Bariloche across the border. Returning early is a legit money-saver too: ending the drive in Coyhaique and flying to Puerto Montt skips the very long, slow car ferries of the final stretch — the authors took that exact route, running the Futaleufú rafting loop as an out-and-back from the Austral before the drop-off. Dropping the car elsewhere can carry an extreme one-way fee, which is where the relay trick comes in: find a group driving the route in the opposite direction and hand the car over — full tank, paperwork and keys — at your finish, and they return it for you. Just make sure you are never the one stuck returning the car, and that every driver is covered by the insurance.

Highlights along the way

The stretch from Puyuhuapi to Puerto Río Tranquilo is the postcard section: turquoise rivers, the Queulat hanging glacier, and the marble caves on General Carrera lake. Chaitén and its volcano are worth a stop, and the road over the Cuesta Quebrada del Viento rewards drivers with huge views of the Baker river valley.

Torres del Paine trekkers typically begin in Puerto Natales, reachable via a scenic ferry across the Seno Última Esperanza.

Practical tips

• Drive with headlights on at all times — it is both safer and the local norm.
• The road is closed for hours after heavy rain; check conditions in Coyhaique before leaving.
• Winter (June–August) closes sections and ferries; plan for October–March only.
• Pack warm layers even in summer — Patagonian wind is relentless.
• Fill the tank whenever you can: distances between stations are up to 300 km.