Druk Air and Bhutan Airlines are the only airlines that operates flights into Paro international airport. These two airlines operates a fleet of Airbus and flies to Bangkok (Thailand), Kathmandu (Nepal), Delhi, Calcutta and Guwahati(India), Dhaka (Bangladesh) and Singapore. Flight to Delhi via Kathmandu offers some of the most breathtaking views of the Bhutanese, Nepalese and Indian Himalayas. Close views of Jomolhari, Jitchu Drake, Kanchenjunga and Everest are some of the peaks that enthrall passengers on this flight.
During the monsoon season, unpredictable weather can disrupt flight schedules forcing delays. Travelers are therefore advised to include an extra day in their itinerary to accommodate such circumstances while planning to travel to Bhutan.
Visitors can also enter or exit Bhutan by road through the neighboring Indian states of Assam and West Bengal in south.
You can enter or exit through road from Phuntsholing, a border town to India in the south- western part of the country which is about seven hour drive from Paro or Thimphu. The nearest airport from Phuntsholing is Bagdogra in India at the base of the foothills of Darjeeling and Sikkim between which you can drive overland taking about 05 hours approximately.
The Eastern Bhutan which is not that explored till now could be entered by road through south- eastern town of Samdrup Jongkhar which is about two hour’s drive from Guwahati Airport in Assam. There are so many places of historical importance in east and not to forget its rich flora and fauna.