The nearest Airport is in Bagdogra in West Bengal. From here one can either take a pre-paid Taxi (from within the Airport) or one can go to Siliguri to find a shared taxi. Major flight carriers have daily flights to this airport. It is best to stay in Gangtok for one night and then travel to Lachen in the morning, next day. Please note special Permit is required to access this area which is provided by a registered local travel agent.