If you're traveling from Puerto Montt in Chile to San Carlos de Bariloche in Argentina, it is a 200-mile (320 km) journey.
A private transfer is the best option since it's more difficult to rent a car if you won't be returning to Chile (you can't leave your rental in Argentina). The drive will take about five hours.
If you don't mind an extra hour or so of travel time, you can also catch a bus in Puerto Montt.
Interested in seeing more of Argentina's lake district surrounding Bariloche? Consider this 7-day trip that includes trekking in Emilio Frey Refuge, a kayaking trip on Lago Mascardi, relaxing lunches on tranquil pebble beaches, and more.
By Private Transfer
Duration: 5 hours, more with stops
The best way to get from Puerto Montt to Barichole is by taking a private transfer. You'll be taking Route 215, and there are many places to consider arranging stops in along the way. About 44 miles (71 km) into your drive, you'll come across Vicente Pérez Rosales National Park, where you can see waterfalls and snow-capped peaks. Just a few minutes north of the park, you'll be able to get even closer views of the Osorno Volcano.
For more of Chile's lake and volcano district, check out this 12-day itinerary that includes plenty of trekking around many other national parks, a visit to Chiloé Island, a tour of the Church of Achao, and more.
By Bus
Duration: 6 hours, more with stops and border check
Taking a bus from Puerto Montt's main bus station to Bariloche is a 6-hour journey with around four to six stops along the way—Osorno being one of them—but you won't have much time to explore.
There are several different buses that take this route each day, but consider asking a local specialist with help in booking as the availability of wifi, air conditioning, entertainment, and other amenities varies from company to company. Long lines at the border crossing can add even more time to this journey, so this might not be the best option if you're in a hurry.
By Rental Car
Duration: 5 hours, more with stops
Renting a car is tricky since you can't leave your rental in Bariloche, so this option isn't recommended unless you're planning to return to Chile. Consider talking with a local specialist in order to find the best travel plan to suit your sightseeing plans.
If you do rent a car in Puerto Montt, make sure you have the appropriate visa for your stay in Argentina, and let the travel company know about your travel plans so they can give you the appropriate paperwork to show the officials at the border both going into and out of Argentina.
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