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

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

The driving distance from Williston (XWA) to Seattle (BFI) is 1072 miles / 1726 kilometers, and travel time by car is about 20 hours 32 minutes.

Distance from Williston to Seattle

There are several ways to calculate the distance from Williston to Seattle. 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 Williston to Seattle?

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

What is the time difference between Williston and Seattle?

The time difference between Williston and Seattle is 1 hour. Seattle is 1 hour behind Williston.

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

On average, flying from Williston to Seattle 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 Williston to Seattle

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

Airport information

Origin	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

Destination	Seattle Boeing Field
City:	Seattle, WA
Country:	United States
IATA Code:	BFI
ICAO Code:	KBFI
Coordinates:	47°31′47″N, 122°18′7″W