Antarctica cannot be reached through a single universal route. Ushuaia, Argentina, and Punta Arenas, Chile, are southern gateways used for different combinations of expedition vessels, logistics, aviation and scientific support.

01USHUAIA AND SEA ROUTES

Ushuaia is an established departure point for cruises heading towards the Antarctic Peninsula and surrounding islands. Many sea voyages cross the Drake Passage before continuing into Antarctic waters. Research and logistics traffic are part of the wider activity, too. A city departure point alone cannot guarantee a particular Antarctic landing.

In its January 2026 tourism update, the Municipality of Ushuaia reported 107 cruise calls and 43,720 passengers. Those local monthly figures are not a count of unique Antarctic visitors. They must not be directly added to international tourism statistics without checking definitions.

02PUNTA ARENAS AND AIR-SEA CONNECTIONS

Punta Arenas supports aviation and logistics in the southern polar region. Some commercial programs use an air-cruise model: for example, Antarctica21 describes a scheduled flight of roughly two hours to King George Island followed by a small-ship expedition. This is a documented example of one operator's itinerary, not proof that every Punta Arenas departure follows that route.

03WHY THE DISTINCTION MATTERS

Ship-based voyages and fly-cruise programs differ in travel format and exposure to the Drake Passage. Every Antarctic operation is subject to weather, ice, logistics, safety and environmental rules. Neither travel style automatically guarantees shore landings or particular wildlife encounters.

04BEFORE CHOOSING A TRIP

Check the actual departure city, airport/port transfers, ship arrangements, landing policy, cancellation terms, relevant health requirements and visitor rules. Use official documentation and avoid treating an advertisement as a binding itinerary promise.

The Antarctic Treaty Secretariat publishes tourism guidance, while IAATO offers separate visitor briefings for going ashore, cruise-only travel and deep-field/fly-in activities.

RADAR ANTÁRTIDA connects the practical geography of the southern gateways with independent Antarctic information. This draft neither sells trips nor endorses any provider.

VERIFY AND EXPLORE FURTHER

Keep the evidence close.

Sources consulted for this investigation. Check the date and scope of each document.