There are no roads between Greenland's towns. Getting from one place to another means flying, taking a ferry, or in winter, traveling by dog sled or snowmobile across the sea ice.
By Air
Air Greenland (airgreenland.com) operates the domestic network, using a mix of small fixed-wing aircraft and helicopters to reach towns and settlements that can't support a runway. Flights are short but can be expensive — a one-way ticket between Nuuk and Ilulissat typically costs around DKK 2,000–4,000 (roughly USD 280–570). Book ahead, especially in summer.
Weather cancellations are a fact of life. Low cloud, high winds, and poor visibility can ground flights for days at a time in any season. Carry enough cash and flexibility to wait it out.
By Sea
The Sarfaq Ittuk coastal ferry, operated by Arctic Umiaq Line (aul.gl), runs along the west coast from Qaqortoq in the south to Uummannaq in the north, calling at towns and settlements along the way. It operates from late April to early January. The journey from Qaqortoq to Ilulissat takes several days; this is an excellent way to see the coastline, meet locals, and travel cheaply by Greenlandic standards. Cabins are basic; book early for summer.
Smaller local boat services connect nearby settlements in some areas, particularly around Nuuk and in South Greenland.
In Town
Within towns, most things are walkable. Taxis exist in larger towns. There are no buses in the traditional sense, though some towns have shuttle services. Car rental is available in Nuuk and a few other larger towns, but there is nowhere much to drive beyond the immediate town area.
In Winter
Between roughly November and April, dog sled travel is still practiced — primarily by hunters, but also as a tourist activity. Snowmobiles are widely used by locals for travel over sea ice and tundra. If you're planning winter travel between settlements, ask locally about current ice conditions; travel on sea ice carries real risk.