Bihar to Bhutan · 421 km · Compare travel & driving options
The straight-line distance from Sitamarhi to Thimphu is approximately 421 km (262 miles). By road, the distance increases to about 507 km due to terrain, highways, and road networks connecting Bihar to Bhutan.
A road trip from Sitamarhi to Thimphu covers approximately 507 km and takes around 6 hrs 11 min. Start early to make the most of daylight hours.
For official travel information, regulations, and booking services:
DGCA — Indian aviation authority
Passport Seva — Passport and travel documents
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