Antarctica has no permanent residents or commercial airports. All tourism operates via expedition cruises (and rare fly-in programs) departing from gateway cities in these countries:
| Country | Primary Departure Port(s) | Notes |
|---|---|---|
| Argentina | Ushuaia (Tierra del Fuego) | Most popular gateway; 90%+ of cruises depart here. Shortest crossing (Drake Passage ~600 nm). |
| Chile | Punta Arenas | Fly-cruise options (fly to King George Island, join ship). Also full cruises. |
| Australia | Hobart, Tasmania | Longer voyages (Ross Sea, East Antarctica); 3–4 weeks. Operators: Aurora Expeditions, Chimu Adventures. |
| New Zealand | Christchurch (Lyttelton) / Invercargill (Bluff) | Ross Sea / East Antarctica voyages. Heritage Expeditions, Antarctic Heritage Trust. |
| South Africa | Cape Town | Rare, long voyages (30+ days) to Princess Elisabeth Land / Queen Maud Land. Very expensive. |
| United Kingdom | Southampton / Portsmouth | Repositioning voyages (Arctic → Antarctic) or dedicated expeditions. Long transits. |
| United States | None direct. US operators charter ships from Ushuaia/Punta Arenas. | US citizens book via US tour operators (e.g., Lindblad, Quark, G Adventures) departing Argentina/Chile. |