How do people travel to Antarctica?

Answer 1

Usually plane or sea
In the popular sense, there is no 'travel' on the Antarctic continent.

Tourists travel to the coasts by cruise ship; scientists and those who work in support of science travel by either ship or by military air transport to the individual scientific stations; expeditioners travel to the continent by private, chartered transport.

On the continent, military transport, including Hercules 130s and helicopters are used to move people and supplies between stations and to and from field camps. Work vehicles include trucks, snowcats, Catepillar and Tucker tractors.

Otherwise, people walk in the science stations on foot and are generally restricted to the confines of the stations, because of the danger of falling into a crevasse or being caught outdoors in un-surviveable extreme weather outside its perimeters.
You can go to Antarctica by plane or by ship. The most common way to get there are the cruises trips to Antarctica. There are specialized companies that can make this dream come true. The ships that can reach the White Continent are polar-class icebreakers originally built for scientific research, remodeled to take passengers with all the comfort to this adventure trip. More information about Antarctica cruises: http://www.antartida.com.br.
You can take a ship, or ride a plane.

Answer 2

Depending on the purpose for the travel, people can ride Ski-Doos, drive Tucker Sno Cats, or walk while pulling sleds.

Be aware that there all approved routes on ice are marked annually so as to avoid crevasses. However, when travel is required over unmarked routes, crevasses are a deadly danger.

Answer 3

Generally, people do not 'travel across Antarctica'. People visit Antarctica, people live and work temporarily in Antarctica. Most human activity -- and sea animal activity -- occurs on Antarctic's beaches.

'Traveling across Antarctica' is generally an expedition, requiring significant logistical support.

American Will Steger did lead an expedition across the longest length of Antarctica, from the Antarctic Peninsula to Mirny, about 4,000 Km. His team of six explorers trekked from July 1, 1989 to April 15, 1990. They reached the South Pole at Christmas time.