The best seasons to visit Thimphu Bhutan are preferably spring and autumn, particularly in the months of October and November, when the skies are blue and mountain peaks have incredible view. For those who yearn to catch a Bhutanese festival, predominantly the masked dance of the monks, the months to be there are October and March.
The country’s solitary International airport is located in Paro, about 54 km away from Thimphu, about an hour’s drive away. Nearly all visitors currently arrive via Paro by plane, and another International airport is under construction in the south central district of Gelephu. In addition, there are three domestic airports and two domestic carriers.
It takes about 175 km by road to Phuentsholing from Bagdogra, India. If you are nature lover and want to enjoy the beauty of the country take a road from Phuentsholing which is 179 km from Thimphu, although tiring but you get to rejoice the nature. Phuentsholing can also be travelled from Siliguri and Kolkata. Thimphu can be easily reached from Paro, Punakha and Trongsa
All inter-district buses arrive and depart from the city's bus station in the city centre, located across the river. It is a six to seven hour drive (mostly through Chukha district) from the border town of Phuentsholing. Travellers should be aware that the roads around the mountains frequently undergo construction and there might be snags and hitches in the journey but then it gets adventurous with it. Work on the Paro to Thimphu section was complete in 2008.
Private operators like Dhug, Meto and Sernya provide Toyota Coaster services from Phuentsholing to Thimphu for easy travelling. These buses can seat 22 and are very comfortable. They also take advance reservations which can be made at Phuentsholing Bus Station.From Thimphu,there are various buses that ply to other parts of the country.