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

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

The driving distance from Portsmouth (PSM) to Dubuque (DBQ) is 1228 miles / 1977 kilometers, and travel time by car is about 23 hours 38 minutes.

Portsmouth International Airport at Pease – Dubuque Regional Airport

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1011
Miles
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1626
Kilometers
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878
Nautical miles

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Distance from Portsmouth to Dubuque

There are several ways to calculate the distance from Portsmouth to Dubuque. 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 Portsmouth to Dubuque?

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

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

On average, flying from Portsmouth to Dubuque 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 Portsmouth to Dubuque

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

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 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