How far is Williston, ND, from Porto?

The distance between Porto (Porto Airport) and Williston (Williston Basin International Airport) is 4392 miles / 7069 kilometers / 3817 nautical miles.

Distance from Porto to Williston

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

Vincenty's formula (applied above)

• 4392.479 miles
• 7069.009 kilometers
• 3816.960 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

• 4380.601 miles
• 7049.894 kilometers
• 3806.638 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 Williston?

The estimated flight time from Porto Airport to Williston Basin International Airport is 8 hours and 48 minutes.

What is the time difference between Porto and Williston?

The time difference between Porto and Williston is 6 hours. Williston is 6 hours behind Porto.

Flight carbon footprint between Porto Airport (OPO) and Williston Basin International Airport (XWA)

On average, flying from Porto to Williston generates about 506 kg of CO2 per passenger, and 506 kilograms equals 1 115 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Porto to Williston

See the map of the shortest flight path between Porto Airport (OPO) and Williston Basin International Airport (XWA).

Airport information

Origin	Porto Airport
City:	Porto
Country:	Portugal
IATA Code:	OPO
ICAO Code:	LPPR
Coordinates:	41°14′53″N, 8°40′53″W

Destination	Williston Basin International Airport
City:	Williston, ND
Country:	United States
IATA Code:	XWA
ICAO Code:	KXWA
Coordinates:	48°15′30″N, 103°44′55″W