Bihar to Assam · Compare flights, trains, buses & driving options
| Train | Dep | Arr | Duration | Classes |
|---|---|---|---|---|
| NEW DELHI - GUWAHATI Poorvottar Sampark Kranti Exp #12502 · SKr |
08:15 | 1A,2A,3A,SL | ||
| NEW DELHI - DIBRUGARH TOWN Rajdhani Exp #12424 · Raj |
01:53 | 17:20 | 15h 27m | 1A,2A,3A |
| New Delhi-Guwahati Rajdhani Express #22424 · Raj |
01:53 | 17:20 | 15h 27m | 1A,2A,3A |
| Bikaner Guwahati Express #25631 · Exp |
04:22 | 23:15 | 18h 53m | 3A,SL |
| BARMER - GUWAHATI Exp #15631 · Exp |
04:23 | 23:15 | 18h 52m | 2A,3A,SL |
| OKHA - GUWAHATI EXP #15635 · Exp |
10:32 | 07:05 | 20h 33m | 2A,3A,SL |
| MUMBAI LTT - GUWAHATI Exp #15647 · Exp |
11:54 | 13:00 | 25h 06m | 2A,3A,SL |
| MUMBAI LTT - GUWAHATI Exp #15645 · Exp |
11:54 | 11:30 | 23h 36m | 2A,3A,SL |
| OLD DELHI - DIBRUGARH Brahmaputra Exp #14056 · Mail |
14:33 | 14:25 | 23h 52m | 2A,3A,SL |
| DELHI ANAND VIHAR - GUWAHATI North East Exp #12506 · SF |
21:41 | 16:40 | 18h 59m | 2A,3A,SL |
| RAJENDRA NAGAR - GUWAHATI Capital Exp #13248 · Exp |
22:54 | 2A,3A,SL |
The straight-line (aerial) distance from Patna to Guwahati is approximately 663 km (412 miles). By road, the distance increases to approximately 895 km due to the terrain, highways, and road networks connecting Bihar to Assam.
Flying is the fastest way to cover the 663 km distance. Flights from PAT to GAU take approximately 0.9 hours including boarding and taxiing. Multiple airlines operate on this route, and fares vary depending on the season, time of booking, and class of travel.
For the best prices, book 2-3 weeks in advance and opt for mid-week departures (Tuesday, Wednesday) which are typically cheaper than weekend flights.
Search Patna to Guwahati FlightsIndian Railways connects Patna and Guwahati with multiple daily services. The journey takes around 16.3 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 22.4 hours covering ~895 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 Patna to Guwahati BusesA road trip from Patna to Guwahati covers approximately 895 km and takes around 17.9 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