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How far is Ulsan from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Ulsan (Ulsan Airport) is 5204 miles / 8375 kilometers / 4522 nautical miles.

Seattle Boeing Field – Ulsan Airport

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5204
Miles
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8375
Kilometers
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4522
Nautical miles

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Distance from Seattle to Ulsan

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

Vincenty's formula (applied above)
  • 5204.148 miles
  • 8375.265 kilometers
  • 4522.281 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
  • 5191.480 miles
  • 8354.877 kilometers
  • 4511.273 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 Ulsan?

The estimated flight time from Seattle Boeing Field to Ulsan Airport is 10 hours and 21 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Ulsan Airport (USN)

On average, flying from Seattle to Ulsan generates about 611 kg of CO2 per passenger, and 611 kilograms equals 1 346 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Ulsan

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Ulsan Airport (USN).

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 Ulsan Airport
City: Ulsan
Country: South Korea Flag of South Korea
IATA Code: USN
ICAO Code: RKPU
Coordinates: 35°35′36″N, 129°21′7″E