Distance from Delhi to Patna

The straight-line (great-circle) distance between Delhi and Patna is 854.3 kilometres, roughly 1 h 30 min by plane at 850 km/h. By road it is about 999 km via Ganga Expressway and Purvanchal Expressway, which takes around 11 h 35 min of driving without stops. The map below shows both routes, and the calculator recomputes them for any other pair of places.

Straight line854.3 km
By road999 km
Driving time11 h 35 min
Flight time1 h 30 min

About this page

This page is for travellers planning a trip from Delhi, Delhi to Patna, Bihar. The straight-line distance comes from the haversine formula (great-circle distance). The road distance and driving time are the fastest car route on the OpenStreetMap road network, computed with OSRM; the actual time depends on traffic, stops and the highways you choose. Delhi sits in Delhi and Patna in Bihar, so the road route can pass through several states. Tap "Calculate distance" in the calculator to redraw the route live.

Frequently asked questions

What is the distance from Delhi to Patna?
In a straight line it is 854.3 km. By road it is about 999 km, roughly 11 h 35 min of driving.
How long does it take to fly from Delhi to Patna?
Roughly 1 h 30 min: the distance at a cruising speed of 850 km/h plus about 30 minutes for take-off and landing.
How long is the road route between Delhi and Patna?
About 999 km on the fastest route via Ganga Expressway and Purvanchal Expressway, which takes around 11 h 35 min by car. Tap "Calculate distance" in the calculator to see the route on the map.
Are Delhi and Patna in the same state?
No — Delhi is in Delhi and Patna in Bihar.
How is the distance computed?
The straight-line distance uses the haversine (great-circle) formula, which gives the shortest distance between two points on Earth's spherical surface.