In Darjeeling their does not have any airport. The closest airport to Darjeeling is Bagdogra, which is very close to Siliguri. Bagdogra is approximately two and a half hours by road from Darjeeling. Many Flights available from Delhi / Bengaluru / Hyderabad / Chennai / Kolkata is taking 1 or 2 to 3 hours from various destinations. Air India, Vistara, Indigo, Air Asia, Spice Jet daily flights. From New Delhi. and kolkata or Bengaluru Spice Jet and Go Air have daily flights as well as same from Mumbai to Bagdogra. There also regular flights from Guwahati and Kolkata.
If you are flying from outside India, it is advisable to take a flight to one of the major cities in the country and then get a connecting flight to Bagdogra. There are international flights from Bangkok, Paro and most of the major cities in Bhutan.
It is possible to access Nepal through Darjeeling. One can get a shared jeep from Siliguri or call Siliguri Travels for private Taxi - call +919434086128 or take a bus to the Nepalese border changing buses at Nepal. Alternatively, there are services available next to the clock tower in Darjeeling where the driver can take you across the border and drop you at the Bhadrapur airport in Nepal for your connecting flight to Kathmandu.
If you have any requirement of taxi bagdogra to darjeeling - please visit siliguritravels.com or call - +919434086128 for private taxi luxary or small.