How far is New Delhi from London? Here's the quick answer if you have friends taking shifts as driver so that you can make the entire trip by car without stopping.
Nonstop drive: 6,638 miles or 10683 km
Driving time: 159 hours, 29 minutes
Now let's assume you have a private jet and you can fly in the fastest possible straight line between London, United Kingdom and New Delhi, India. Because of the curvature of the Earth, the shortest distance is actually the "great circle" distance, or "as the crow flies" which is calculated using an iterative Vincenty formula. For a long distance, this appears as a curve on the map, and this is often the route that commercial airlines will take so it's a good estimate of the frequent flyer miles you'll accumulate as well.
Flight distance: 4,178 miles or 6723 km
The straight line flight distance is 2,460 miles less than driving on roads, which means the driving distance is roughly 1.6x of the flight distance.
Your plane flies much faster than a car, so the flight time is about 1/0th of the time it would take to drive.
This is a fairly long flight, so unless you have a Gulfstream G650 or your own Boeing or Airbus, you might be booking a commercial flight. In that case, your travel time would really need to include how many minutes to get to your local airport, wait for security, board and taxi on the runway, land at the other airport, and get to your destination.
Trippy has a ton of information that can help you plan your trip to New Delhi, India. Start by reading the Trippy page on where to stay in New Delhi. Trippy members can suggest things to do in New Delhi like Connaught Place. Check out some of the questions people have asked about New Delhi like What's the best neighborhood in New Delhi for a first time visitor?. Click the button below to explore New Delhi in detail.
The distance is the same either way if you're flying a straight line (or driving the same roads back and forth). But for a real trip, there can be plenty of differences so go ahead and check the reverse directions to get the distance from New Delhi to London, or go to the main page to calculate the distance between cities.
If you happen to know London, don't forget to help other travelers and answer some questions about London!