The route from Biswanath Chariali to Pasighat spans roughly 350 km, primarily following NH 15 and NH 515. You will pass through North Lakhimpur and Dhemaji before crossing the Siang river bridge to reach Pasighat. This journey takes about 8 to 9 hours by road. It is a scenic drive through the plains of Assam into the foothills of Arunachal Pradesh.
Total Distance: 350 km driving distance and 220 km straight-line air distance.
The road condition improves significantly once you enter Arunachal territory.
November to February for pleasant weather and clear views of the Siang river.