Sunam to Gangtok

Gangtok is approximately 1450+ kms from Sunam. The fastest way to reach Gangtok from Sunam is by Train, Flight, Cab Via Delhi, Siliguri. It takes approximately 15 hours. The cheapest way to reach Gangtok from Sunam is by Train, Bus Via Delhi, Gorakhpur, Siliguri which would take approximately 42 hours.