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How far is Walla Walla, WA, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Walla Walla (Walla Walla Regional Airport) is 2316 miles / 3728 kilometers / 2013 nautical miles.

The driving distance from Portsmouth (PSM) to Walla Walla (ALW) is 2977 miles / 4791 kilometers, and travel time by car is about 52 hours 53 minutes.

Portsmouth International Airport at Pease – Walla Walla Regional Airport

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2316
Miles
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3728
Kilometers
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2013
Nautical miles

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Distance from Portsmouth to Walla Walla

There are several ways to calculate the distance from Portsmouth to Walla Walla. Here are two standard methods:

Vincenty's formula (applied above)
  • 2316.400 miles
  • 3727.885 kilometers
  • 2012.897 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
  • 2310.061 miles
  • 3717.683 kilometers
  • 2007.388 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 Walla Walla?

The estimated flight time from Portsmouth International Airport at Pease to Walla Walla Regional Airport is 4 hours and 53 minutes.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Walla Walla Regional Airport (ALW)

On average, flying from Portsmouth to Walla Walla generates about 254 kg of CO2 per passenger, and 254 kilograms equals 560 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 Walla Walla

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Walla Walla Regional Airport (ALW).

Airport information

Origin Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W
Destination Walla Walla Regional Airport
City: Walla Walla, WA
Country: United States Flag of United States
IATA Code: ALW
ICAO Code: KALW
Coordinates: 46°5′41″N, 118°17′16″W