West Bengal to Bihar · Compare flights, trains, buses & driving options
The straight-line (aerial) distance from Darjeeling to Siwan is approximately 399 km (248 miles). By road, the distance increases to approximately 539 km due to the terrain, highways, and road networks connecting West Bengal to Bihar.
Indian Railways connects Darjeeling and Siwan with multiple daily services. The journey takes around 9.8 hours — Rajdhani and Shatabdi express trains are faster, while mail and passenger trains make more stops.
Book in advance through IRCTC, especially during festivals and holidays when seats fill up quickly.
Check Trains on IRCTCBus travel is a popular and affordable option. The journey takes approximately 13.5 hours covering ~539 km. Both government and private operators service this route.
Night buses are especially popular for this distance — travel while you sleep and arrive fresh at your destination.
Search Darjeeling to Siwan BusesA road trip from Darjeeling to Siwan covers approximately 539 km and takes around 10.8 hours. Actual time depends on traffic, road quality, and stops along the way.
Start early to avoid city traffic and use daylight hours, especially on mountainous or rural terrain. Ensure your vehicle is in good condition and carry sufficient fuel for remote stretches.
For official travel information, regulations, and booking services:
IRCTC — Indian Railway Catering and Tourism Corporation — Book train tickets online
Airports Authority of India — Airport information and flight status
DGCA — Directorate General of Civil Aviation — Indian aviation regulator
Incredible India — Official tourism portal of India