Book one-way trips from Siliguri to Gangtok with Uber Intercity. The average distance is 104 kilometers by outstation cab. The cheapest way to get from Gangtok to Siliguri costs only $4, and the quickest way takes just 1¾ hours. Find the travel option that best suits you. Frequently Asked Questions What is the distance between Siliguri and Gangtok? Gangtok is approximately 100+ kms from Siliguri. Learn how to reach Gangtok from New Jalpaiguri (NJP) or Siliguri, with details on distance, travel time, best transport options, and scenic tips for the road.