Druk Air is the National Air Carrier of Bhutan that operates flights from Paro to Delhi, Kolkata, Gaya, Kathmandu, Bangkok and Dhaka. It is well connected to these places. Paro is the lone international Airport that connects Bhutan to rest of the world. If traveling from India, then there is only Druk Air at the service. This airline is considered to be very safe in terms of travel.