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How far is Williston, ND, from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Williston (Williston Basin International Airport) is 861 miles / 1386 kilometers / 749 nautical miles.

The driving distance from Seattle (BFI) to Williston (XWA) is 1072 miles / 1726 kilometers, and travel time by car is about 20 hours 30 minutes.

Seattle Boeing Field – Williston Basin International Airport

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861
Miles
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1386
Kilometers
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749
Nautical miles

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Distance from Seattle to Williston

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

Vincenty's formula (applied above)
  • 861.433 miles
  • 1386.342 kilometers
  • 748.565 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
  • 858.893 miles
  • 1382.254 kilometers
  • 746.357 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 Seattle to Williston?

The estimated flight time from Seattle Boeing Field to Williston Basin International Airport is 2 hours and 7 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Williston Basin International Airport (XWA)

On average, flying from Seattle to Williston generates about 140 kg of CO2 per passenger, and 140 kilograms equals 309 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seattle to Williston

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Williston Basin International Airport (XWA).

Airport information

Origin Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W
Destination Williston Basin International Airport
City: Williston, ND
Country: United States Flag of United States
IATA Code: XWA
ICAO Code: KXWA
Coordinates: 48°15′30″N, 103°44′55″W