Assam to Bihar · 762 km · Compare trains, buses & driving options
The straight-line distance from Dibrugarh to Katihar is approximately 762 km (473 miles). By road, the distance increases to about 1,019 km due to terrain, highways, and road networks connecting Assam to Bihar.
Katihar does not have its own commercial airport. The nearest airport is DGH. Fly to the nearest airport and continue by road or rail.
Search Flights to Nearest AirportIndian Railways connects Dibrugarh and Katihar with multiple daily services. The journey takes approximately 15 hrs 41 min. Rajdhani and Shatabdi express trains are faster, while mail and passenger trains make more stops but cost less.
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 for the Dibrugarh to Katihar route. The journey takes approximately 20 hrs 23 min covering ~1,019 km. Both government and private operators service this route.
Night buses are popular for this distance — travel while you sleep and arrive fresh at your destination.
Search Dibrugarh to Katihar BusesThe drive from Dibrugarh to Katihar is a long one — approximately 1,019 km taking around 12 hrs 17 min. Plan at least one overnight halt. Fatigue driving on Indian highways is dangerous.
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