The Bagdogra Airport is the nearest domestic airport to Darjeeling and many cities of India like Delhi, Guwahati, Calcutta, Ahmedabad, Mumbai, Hyderabad and Bangalore are well connected with the Bagdogra. Kolkata Airport is the nearest international airport to Darjeeling and connects to many international cities is like Bangkok, Dubai, Colombo, Singapore, Ho Chi Minh City, Hong Kong, and Shanghai.
If you are looking for how to reach Darjeeling from New Delhi then here is the answer. New Delhi Airport is well connected to the Bagdogra airport. One can hire a taxi or catch a bus to reach Darjeeling.