How far is Lewistown, MT, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Lewistown (Lewistown Municipal Airport) is 1891 miles / 3044 kilometers / 1644 nautical miles.
The driving distance from Portsmouth (PSM) to Lewistown (LWT) is 2216 miles / 3566 kilometers, and travel time by car is about 42 hours 8 minutes.
Portsmouth International Airport at Pease – Lewistown Municipal Airport
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Distance from Portsmouth to Lewistown
There are several ways to calculate the distance from Portsmouth to Lewistown. Here are two standard methods:
Vincenty's formula (applied above)- 1891.315 miles
- 3043.776 kilometers
- 1643.508 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- 1886.167 miles
- 3035.492 kilometers
- 1639.034 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 Portsmouth to Lewistown?
The estimated flight time from Portsmouth International Airport at Pease to Lewistown Municipal Airport is 4 hours and 4 minutes.
What is the time difference between Portsmouth and Lewistown?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Lewistown Municipal Airport (LWT)
On average, flying from Portsmouth to Lewistown generates about 208 kg of CO2 per passenger, and 208 kilograms equals 458 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Portsmouth to Lewistown
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Lewistown Municipal Airport (LWT).
Airport information
| Origin | 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 |
| Destination | Lewistown Municipal Airport |
|---|---|
| City: | Lewistown, MT |
| Country: | United States |
| IATA Code: | LWT |
| ICAO Code: | KLWT |
| Coordinates: | 47°2′57″N, 109°28′1″W |