Visitors can enter Bhutan through Paro, the only international airport in the country. Visitors can also enter Bhutan from Phuentsholing via West Bengal, India and Samdrup Jongkhar via Assam, India.
Drukair (Royal Bhutan Airlines) flies to and from these destinations:
Bhutan Domestic Flight Route Map
Getting around Bhutan
Once the visitor has entered Bhutan, getting around is mostly through road. The cost of transportation is included in the price of your trip if you are travelling on a tourist visa. There are also domestic flights which connects some of the places in Bhutan however this flight cost is not included in the package you have paid.