Chile’s long, narrow stretch along the Pacific creates dramatic geography and interesting border relationships, from arid deserts in the north to glacial fjords in the south. Knowing which neighbors touch Chile helps for travel plans, trade context, or simple curiosity about the region.
There are 3 countries that border chile, ranging from Argentina to Peru. For each, you’ll find below Flag (emoji),Border length (km),Main crossings — the table and notes you’ll find below make comparison and trip planning easier.
Which country shares the longest border with Chile?
Argentina shares the longest border with Chile, following the Andes for much of the two countries’ length; this means many official crossings are mountain passes and conditions can vary seasonally.
Are the land borders generally open to travelers and what should I prepare?
Most border crossings operate normally, but hours, vehicle requirements, visa rules and seasonal closures (especially at high Andean passes) vary — check official border or consulate sites ahead of travel, bring passports and any required vehicle or vaccination documents, and plan alternate routes in winter.
Countries that Border Chile
| Country | Flag (emoji) | Border length (km) | Main crossings |
|---|---|---|---|
| Argentina | 🇦🇷 | 5,308 | Los Libertadores (Cristo Redentor), Jama, Agua Negra, Pehuenche, Cardenal Samoré, Tierra del Fuego |
| Bolivia | 🇧🇴 | 861 | Tambo Quemado (Ollagüe), Colchane–Pisiga, Chungará, Visviri, high Andean crossings |
| Peru | 🇵🇪 | 160 | Chacalluta (Arica)–Tacna crossing, Arica border region, Tacna crossings |
Descriptions
Argentina
Chile’s longest international border, stretching along the Andes from the Atacama Desert to Tierra del Fuego. It features major mountain passes used for trade and tourism, complicated history, and numerous cross-border cities connecting both countries economically and culturally.
Bolivia
A high-altitude border across the Andes and Altiplano; Bolivia lost its Pacific coast but retains important customs and mining crossings with Chile. Crossings sit at high elevations and are key for trade and regional indigenous communities.
Peru
A short northern land border centered near Arica and Tacna, established after historical conflicts; today it’s a compact frontier with a major international crossing used for trade, tourism, and cross-border family links.
