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How far is Knoxville, TN, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Knoxville (Knoxville McGhee Tyson Airport) is 863 miles / 1389 kilometers / 750 nautical miles.

The driving distance from Portsmouth (PSM) to Knoxville (TYS) is 988 miles / 1590 kilometers, and travel time by car is about 19 hours 20 minutes.

Portsmouth International Airport at Pease – Knoxville McGhee Tyson Airport

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863
Miles
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1389
Kilometers
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750
Nautical miles

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Distance from Portsmouth to Knoxville

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

Vincenty's formula (applied above)
  • 862.971 miles
  • 1388.817 kilometers
  • 749.901 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
  • 862.011 miles
  • 1387.272 kilometers
  • 749.067 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 Knoxville?

The estimated flight time from Portsmouth International Airport at Pease to Knoxville McGhee Tyson Airport is 2 hours and 8 minutes.

What is the time difference between Portsmouth and Knoxville?

There is no time difference between Portsmouth and Knoxville.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Knoxville McGhee Tyson Airport (TYS)

On average, flying from Portsmouth to Knoxville generates about 140 kg of CO2 per passenger, and 140 kilograms equals 310 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 Knoxville

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Knoxville McGhee Tyson Airport (TYS).

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 Knoxville McGhee Tyson Airport
City: Knoxville, TN
Country: United States Flag of United States
IATA Code: TYS
ICAO Code: KTYS
Coordinates: 35°48′39″N, 83°59′38″W