We are affiliated to 
API Himal Treks & Expedition (P.) Ltd.
P.O.Box: 8974, PCN: 169
Thamel, Kathmandu, Nepal.
Telephone: +977-1- 4412701
Email: trek@apihimal.com
By Air
The only airport is at Paro.
Bhutan's national airline, Druk Air, is the only airline servicing Paro. Click here for current flight schedule. FLIGHT
SCHEDULE
NOTE: During monsoons & Winter, unpredictable weather forces can delay flights and travelers are advised to include an extra day in their itinerary.
By Road
Kathmandu to Kakarvitta ( Nepal-India border) 500 km or Kathmandu-Bhadrapur flight ( Usd 118) and again to Phunsoling(Bhutan-India border) approx 200 km. The road from Bagdogra (the nearest Indian airport) enters Bhutan at Phuentsholing, the border town. It is a 4-5 hour drive from Bagdogra airport, which can be reached by plane from Calcutta and Delhi. From Darjeeling or Gangtok (Sikkim), it can take 7 hour to Phuentsholing. It takes approximately 6 hour from Phuentsholing to Thimphu or Paro.