About knowing how to reach Gangtok by air, the foremost thing to know is that the nearest airport is Bagdogra in West Bengal. Gangtok is at a distance of one hundred and twenty-four kilometers from here. The good thing is that Bagdogra Airport is well connected with other major cities of the country. Also, you can take helicopter services from Bagdogra to Gangtok which are operated by Sikkim Tourism Development Corporation. This will take only twenty more minutes for you to reach.
Also, you can plan to take the road trip which will get you many fascinating views in the way. It will only take approximately two hours for you to reach Bagdogra airport from Delhi. Afterwards, take the bus or hire a taxi as well for a more convenient journey.