Flight distance calculator
Pick two airports and see how far apart they are in miles, kilometres and nautical miles, and about how long the flight takes with no wind.
Type two airports, for example LHR and JFK, or London and New York.
Popular routes, worked out
| Route | Miles | Km | Nautical miles | Flight time, no wind |
|---|---|---|---|---|
| London LHR to New York JFK | 3,442 | 5,540 | 2,991 | 7h 09m |
| London LHR to Los Angeles LAX | 5,443 | 8,760 | 4,730 | 11h 01m |
| London LHR to Dubai DXB | 3,417 | 5,498 | 2,969 | 7h 06m |
| London LHR to Singapore SIN | 6,762 | 10,883 | 5,876 | 13h 34m |
| London LHR to Sydney (Mascot) SYD | 10,576 | 17,021 | 9,190 | 20h 55m |
| London LHR to Ingliston EDI | 332 | 534 | 288 | 1h 08m |
| Manchester MAN to Dublin DUB | 164 | 264 | 143 | 49m |
| London LHR to Paris (Roissy-en-France CDG | 216 | 348 | 188 | 55m |
Straight-line distances from airport positions (OurAirports, public domain). The time assumes 450 knots and 30 minutes for the ends, and no wind.
How the distance is worked out
The tool draws the shortest line between the two airports across the curve of the Earth. Pilots call it the great-circle distance. It uses the airport positions in the same list as our airport code lookup, so it's a straight-line figure, not the route an airline files. Real routes bend around weather, airspace and the jet stream, and usually fly a little further.
You get the answer in miles, kilometres and nautical miles. A nautical mile is 1.852 km, a little over a standard mile, and it is the unit pilots use for distance.
How the time is worked out
The time is a no-wind estimate. It takes the distance at a steady cruise speed, then adds a fixed allowance for taxiing, take-off, the climb, the descent and landing. We start with 450 knots, which is about 518 mph and is a typical cruise speed for a big jet, and 30 minutes for the ends. Change either number and the answer changes with it.
Wind is the big thing the estimate leaves out. A jet flying west across the Atlantic meets headwinds and takes longer than the same jet flying east, so the timetable is longer on the way out. Use the estimate to compare routes, and don't plan your day around it.
Put your route on the wall
Once you have a route, the two airports can go on a print. The airport code print sets a three-letter code in big type with the airport name and its position beneath, which suits the airport you flew from or the one you landed at.