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How far is Fort Smith, AR, from Porto?

The distance between Porto (Porto Airport) and Fort Smith (Fort Smith Regional Airport) is 4480 miles / 7210 kilometers / 3893 nautical miles.

Porto Airport – Fort Smith Regional Airport

Distance arrow
4480
Miles
Distance arrow
7210
Kilometers
Distance arrow
3893
Nautical miles

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Distance from Porto to Fort Smith

There are several ways to calculate the distance from Porto to Fort Smith. Here are two standard methods:

Vincenty's formula (applied above)
  • 4480.333 miles
  • 7210.397 kilometers
  • 3893.303 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
  • 4469.834 miles
  • 7193.500 kilometers
  • 3884.179 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 Porto to Fort Smith?

The estimated flight time from Porto Airport to Fort Smith Regional Airport is 8 hours and 58 minutes.

Flight carbon footprint between Porto Airport (OPO) and Fort Smith Regional Airport (FSM)

On average, flying from Porto to Fort Smith generates about 517 kg of CO2 per passenger, and 517 kilograms equals 1 140 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Porto to Fort Smith

See the map of the shortest flight path between Porto Airport (OPO) and Fort Smith Regional Airport (FSM).

Airport information

Origin Porto Airport
City: Porto
Country: Portugal Flag of Portugal
IATA Code: OPO
ICAO Code: LPPR
Coordinates: 41°14′53″N, 8°40′53″W
Destination Fort Smith Regional Airport
City: Fort Smith, AR
Country: United States Flag of United States
IATA Code: FSM
ICAO Code: KFSM
Coordinates: 35°20′11″N, 94°22′2″W