Air Miles Calculator logo

How far is Portsmouth, NH, from Portland, OR?

The distance between Portland (Portland International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2527 miles / 4066 kilometers / 2196 nautical miles.

The driving distance from Portland (PDX) to Portsmouth (PSM) is 3150 miles / 5069 kilometers, and travel time by car is about 56 hours 7 minutes.

Portland International Airport – Portsmouth International Airport at Pease

Distance arrow
2527
Miles
Distance arrow
4066
Kilometers
Distance arrow
2196
Nautical miles

Search flights

Distance from Portland to Portsmouth

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

Vincenty's formula (applied above)
  • 2526.764 miles
  • 4066.432 kilometers
  • 2195.698 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
  • 2519.859 miles
  • 4055.320 kilometers
  • 2189.698 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 Portland to Portsmouth?

The estimated flight time from Portland International Airport to Portsmouth International Airport at Pease is 5 hours and 17 minutes.

Flight carbon footprint between Portland International Airport (PDX) and Portsmouth International Airport at Pease (PSM)

On average, flying from Portland to Portsmouth generates about 278 kg of CO2 per passenger, and 278 kilograms equals 614 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Portland to Portsmouth

See the map of the shortest flight path between Portland International Airport (PDX) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Portland International Airport
City: Portland, OR
Country: United States Flag of United States
IATA Code: PDX
ICAO Code: KPDX
Coordinates: 45°35′19″N, 122°35′52″W
Destination 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