The 7 Most-Visited South America Destinations for US Travelers

Backed by real tourism-board data from Peru, Brazil, Colombia, and Ecuador — not a guess at where Americans actually go.

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South America doesn't get the same volume of US searches as Mexico or the Caribbean, but the travelers who do go tend to go big — bucket-list landmarks, multi-country itineraries, weeks not long weekends. We pulled real visitor data from Peru, Brazil, Colombia, and Ecuador's own tourism authorities to rank where Americans are actually going.

1. Cusco / Machu Picchu, Peru

Machu Picchu is Peru's single most-visited site, now drawing over 1.5 million visitors a year, and the US is Peru's #2 international source market overall — 566,000 American arrivals in the first 11 months of 2025 alone, second only to Chile. Peru raised the daily visitor cap to 4,500 (up to 5,600 in peak season) in 2024 just to manage the crowding. Go in the dry season, May through September — permits sell out months in advance.

Cusco / Sacred Valley, Peru

Always a connecting flight (usually through Lima), so it works best for trips of 6+ days rather than a quick getaway. Cusco sits at 3,400m — plan on 1–2 days to acclimatize before any trekking.

Value score: 72/100

2. Cartagena, Colombia

Cartagena is one of the fastest-growing US-connected leisure markets in South America right now: United Airlines is launching new nonstop routes from Houston and Washington Dulles in December 2026, citing growing leisure demand by name. It's also a major Caribbean cruise port. The walled Old City, Ciudad Amurallada, is a UNESCO World Heritage Site — the December–April dry season is the best window to see it.

Cartagena, Colombia

Great value for culture and beach in one trip — this isn't a pure beach destination, the walled city is the main draw. Hot and humid year-round; the real seasonal difference is rainfall, not temperature.

Value score: 78/100

3. Rio de Janeiro, Brazil

Rio has the highest documented count of US visitor arrivals of any South American destination we checked: 759,637 in 2025, up from 728,537 in 2024 — a steady, multi-year climb, not a one-off spike. Christ the Redeemer is one of the official New7Wonders of the World. Skip Carnival (Feb/March) if you want the same weather with a fraction of the crowds and prices — April–June and September–November are nearly identical climate-wise.

Río de Janeiro, Brazil

A long flight from the US/Canada (9–13h, similar to Buenos Aires), so it works best for longer trips. Carnival (Feb/Mar) drives prices way up — outside that window, it's much better value. Portuguese, not Spanish, is spoken here.

Value score: 58/100

4. Buenos Aires, Argentina

Argentina is South America's single most-visited country overall, pulling in a record 7.4 million international visitors, and Buenos Aires specifically has seen a well-documented surge in American travelers tied to favorable peso exchange rates over the past two years. March–May and September–November (fall and spring) are the sweet spots — mild weather without the humid December–February summer crowds.

Buenos Aires, Argentina

One of the longest flights in the catalog from US/Canada hubs (9–13h), so it's best for longer trips. Once you're there, your money tends to go further than average, though the flight itself eats up more of the total budget than in most other destinations.

Value score: 82/100

5. Iguazú Falls

Iguazú is a UNESCO World Heritage Site and an official New7Wonders of Nature — roughly three times wider than Niagara — and functions as the standard add-on for American travelers already booking Buenos Aires or Rio, reachable via direct flights to either the Argentine or Brazilian side. The Argentine side gives you close-up walkway views right over the falls; the Brazilian side gives the panoramic overlook. Most guides recommend budgeting a full day for each.

Iguazu Falls, Argentina

A connecting flight (usually through Buenos Aires), so it's best planned as a 4+ day trip rather than a quick one. You can visit both the Argentine and Brazilian sides on the same trip; our price estimate is based on the Argentine side (IGR).

Value score: 65/100

6. Galápagos Islands, Ecuador

The Galápagos are the bucket-list wildlife and diving destination that shaped Darwin's theory of evolution, and Ecuador's own tourism data shows American travelers have historically been the single largest nationality visiting, typically transiting through Quito. Conservation caps limit the islands to roughly 200,000 visitors a year. May through December brings calmer seas, plus the best window to see blue-footed booby mating displays and new sea lion pups.

Galápagos Islands, Ecuador

A genuine bucket-list destination, no marketing hype needed. You'll always connect through Guayaquil or Quito. There's a separate national park entry fee (~$100 USD, not included in the cost estimate) — it's expensive by design, since tourism is deliberately limited to protect the ecosystem.

Value score: 40/100

7. Medellín, Colombia

Medellín has one of the most documented tourism turnarounds anywhere in South America — from a city defined by its troubled 1990s reputation to a top US leisure and digital-nomad destination, a shift extensively covered in American travel press. It's nicknamed the ‘City of Eternal Spring’ for its steady 60–75°F climate at roughly 4,900 feet of elevation, and its Metrocable gondola system — built to connect hillside neighborhoods to the city center — doubles as one of the best scenic rides in the city.

Medellín, Colombia

One of the best-value destinations in the catalog — steady spring-like weather year-round means there's no bad season to avoid. Not a beach destination, so skip it if that's what you're after.

Value score: 88/100