How far is Portsmouth, NH, from Butte, MT?
The distance between Butte (Bert Mooney Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2045 miles / 3291 kilometers / 1777 nautical miles.
The driving distance from Butte (BTM) to Portsmouth (PSM) is 2397 miles / 3857 kilometers, and travel time by car is about 45 hours 4 minutes.
Bert Mooney Airport – Portsmouth International Airport at Pease
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Distance from Butte to Portsmouth
There are several ways to calculate the distance from Butte to Portsmouth. Here are two standard methods:
Vincenty's formula (applied above)- 2044.806 miles
- 3290.797 kilometers
- 1776.888 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- 2039.227 miles
- 3281.818 kilometers
- 1772.040 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 Butte to Portsmouth?
The estimated flight time from Bert Mooney Airport to Portsmouth International Airport at Pease is 4 hours and 22 minutes.
What is the time difference between Butte and Portsmouth?
The time difference between Butte and Portsmouth is 2 hours. Portsmouth is 2 hours ahead of Butte.
Flight carbon footprint between Bert Mooney Airport (BTM) and Portsmouth International Airport at Pease (PSM)
On average, flying from Butte to Portsmouth generates about 223 kg of CO2 per passenger, and 223 kilograms equals 491 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Butte to Portsmouth
See the map of the shortest flight path between Bert Mooney Airport (BTM) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | Bert Mooney Airport |
|---|---|
| City: | Butte, MT |
| Country: | United States  |
| IATA Code: | BTM |
| ICAO Code: | KBTM |
| Coordinates: | 45°57′17″N, 112°29′49″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 |