One of the several routes to travel to Antarctica is through the classic peninsula voyage. The traveling actually has to be made on the water. You will have to go through the most western part of the world -Ushuaia city in Argentina.
After this location, you head on to the Drake Passage, then South Shetland Island, and of which there are few locations you can stopover. Then you make your journey through to the Antarctic Peninsula. This is a journey that will take more than a week but two weeks at its Max, depending on the means of transportation.
This is a recommended route for any beginner. However, there are more routes that can be taken to Antarctica. Another route is through Antarctica's Ross Sea, from New Zealand. Not many ships take this route. If you consider traveling to Antarctica through the Ross Sea, then it is very important to make sure that the weather is favorable.
The ship to be used also has its determinant in how the journey is going to be. Taking this route to Antarctica will take about a month.