Gangtok isn't immediately served by airlines. The nearest airport is at Bagdogra, West Bengal. It is 124Km away from Gangtok, which is about 4.5 to 5 hrs travel. Many buses, cabs, shared 4wheelers and hired vehicles are easily available.

Gangtok isn't on the railway chart. The closest rail station is New Jalpaiguri in West Bengal, which is 125km apart from Gangtok. Trains from all the main cities of India hook up to New Jalpaiguri.  

By Air : Bagdogra in West Bengal is the nearest airport, from where scheduled flights operates to and fro from Kolkata, Delhi, Guwahati. The Bagdogra airport is linked to Gangtok by a helicopter service. One may effortlessly obtain heli service offered by the Sikkim Tourism Development Corporation on regular schedule and it will take twenty minutes to get to Gangtok from Bagdogra 

By Rail : Closest railway station is New Jalpaiguri (125 km) stabilizing link to Calcutta, Delhi, Guwahati, Lucknow and other key cities in India. 

By Road : The NH 31A is conveniently connected with Siliguri, Darjeeling and Kalimpong by road. The availability of 4wheelers, private buses and cabs from Bagdora and Siliguri make venturing by road a trouble free journey for the tourists. One can also take Sikkim state transport buses from Gangtok to Siliguri.