Nearly 640 miles (1,030 km) separate El Chaltén from Ushuaia, which sits at the very southern tip of Patagonia. The best way to get from El Chaltén down to Ushuaia is to loop through El Calafate, the city with the closest airport, and fly to Ushuaia from there.
By Private Transfer/Rental Car and Plane
Duration: Approximately 5 hours
Renting a car or taking a private transfer to travel between El Chaltén and El Calafate is common, and takes about 3.5 hours, not counting stops along the way to take pictures of the beautiful Patagonian scenery you'll encounter.
When leaving El Chaltén on RP23, make sure to stop and take in the final view of Mount Fitz Roy behind you. You'll drive along Lago Viedma (Viedma Lake) until you reach RN40. Shortly after making a right on RN40, make sure to stop at the Lago Viedma viewpoint.
After Lago Viedma, on the stretch along RN40 you can sometimes spot alpacas or llamas grazing along the road, so make sure to keep an eye out. You'll continue on RN40 and drive along the coast of the Lago Argentino (Argentino Lake), which has another lookout point if you want to take in the view.
After the Lago Argentino, take another right onto RP11 and drive straight to the airport.
From there you can fly straight to Ushuaia, which takes an hour and 20 minutes. Once you arrive, a taxi or private transfer will take you into the city center, which is only 4 miles (7 km) away.