There are a number of the airports from where you can fly into Bhutan from various sectors. If you want to fly in from Indian sector (Delhi, Mumbai,Kolkata, Bagdogra, Bodh Gaya and Guwahati ) and for International sectors from Bangkok, Singapore and Kathmandu. Currently, two airlines operate in Bhutan. These are Drukair and BhutanAirlines. For further details please go to link www.drukair.gov.bt and www.bhutanairlines.com
One can also come by land through two places which have entrance to Bhutan. One can come crossing Indian border from Phuentsholing if one has taken Indian Airlines till Bagdogra or NJP Railway station in west Bengal state of India and from Samdrup Jongkhar if one has taken Indian Airlines till Guwahati in Assam state of India. All travel arrangements to Bhutan must be made through a local tour operator like us operating in Bhutan.