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How far is Portsmouth, NH, from Dubuque, IA?

The distance between Dubuque (Dubuque Regional Airport) and Portsmouth (Portsmouth International Airport at Pease) is 1011 miles / 1626 kilometers / 878 nautical miles.

The driving distance from Dubuque (DBQ) to Portsmouth (PSM) is 1233 miles / 1984 kilometers, and travel time by car is about 23 hours 38 minutes.

Dubuque Regional Airport – Portsmouth International Airport at Pease

Distance arrow
1011
Miles
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1626
Kilometers
Distance arrow
878
Nautical miles

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Distance from Dubuque to Portsmouth

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

Vincenty's formula (applied above)
  • 1010.521 miles
  • 1626.275 kilometers
  • 878.118 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
  • 1007.842 miles
  • 1621.964 kilometers
  • 875.791 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 Dubuque to Portsmouth?

The estimated flight time from Dubuque Regional Airport to Portsmouth International Airport at Pease is 2 hours and 24 minutes.

Flight carbon footprint between Dubuque Regional Airport (DBQ) and Portsmouth International Airport at Pease (PSM)

On average, flying from Dubuque to Portsmouth generates about 151 kg of CO2 per passenger, and 151 kilograms equals 334 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Dubuque to Portsmouth

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

Airport information

Origin Dubuque Regional Airport
City: Dubuque, IA
Country: United States Flag of United States
IATA Code: DBQ
ICAO Code: KDBQ
Coordinates: 42°24′7″N, 90°42′34″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