Lachen is located in the northern district of the state of Sikkim, at a distance of about 129 km from Gangtok, the state capital.
BY AIR: The nearest airport is Bagdogra Airport (124 kms from Gangtok) at Siliguri in state of West Bengal. Helicopter service is available between Bagdogra and Gangtok.
BY ROAD: The best way to reach Lachen is by bus or by taxi services available from Gangtok (state capital). Gangtok is at a distance of about 110 km from the airport at Siliguri.
BY TRAIN: The closest railhead is at New Jalpaiguri, 148 km away from Gangtok. It is connected to Kolkata, New Delhi, Guwahati and other major Indian cities. Both the airport and the train station are about four and a half hours drive from Gangtok.