How far is Portsmouth, NH, from London?
The distance between London (London International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 523 miles / 841 kilometers / 454 nautical miles.
The driving distance from London (YXU) to Portsmouth (PSM) is 649 miles / 1045 kilometers, and travel time by car is about 13 hours 1 minutes.
London International Airport – Portsmouth International Airport at Pease
Search flights
Distance from London to Portsmouth
There are several ways to calculate the distance from London to Portsmouth. Here are two standard methods:
Vincenty's formula (applied above)- 522.618 miles
- 841.072 kilometers
- 454.143 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 521.219 miles
- 838.820 kilometers
- 452.927 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from London to Portsmouth?
The estimated flight time from London International Airport to Portsmouth International Airport at Pease is 1 hour and 29 minutes.
What is the time difference between London and Portsmouth?
Flight carbon footprint between London International Airport (YXU) and Portsmouth International Airport at Pease (PSM)
On average, flying from London to Portsmouth generates about 102 kg of CO2 per passenger, and 102 kilograms equals 225 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from London to Portsmouth
See the map of the shortest flight path between London International Airport (YXU) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | London International Airport |
|---|---|
| City: | London |
| Country: | Canada  |
| IATA Code: | YXU |
| ICAO Code: | CYXU |
| Coordinates: | 43°2′8″N, 81°9′14″W |
| Destination | Portsmouth International Airport at Pease |
|---|---|
| City: | Portsmouth, NH |
| Country: | United States  |
| IATA Code: | PSM |
| ICAO Code: | KPSM |
| Coordinates: | 43°4′40″N, 70°49′23″W |