How far is Ulsan from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Ulsan (Ulsan Airport) is 5207 miles / 8380 kilometers / 4525 nautical miles.

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)

• 5207.259 miles
• 8380.271 kilometers
• 4524.984 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

• 5194.588 miles
• 8359.879 kilometers
• 4513.974 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–Tacoma International Airport to Ulsan Airport is 10 hours and 21 minutes.

What is the time difference between Seattle and Ulsan?

The time difference between Seattle and Ulsan is 16 hours. Ulsan is 16 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Ulsan Airport (USN)

On average, flying from Seattle to Ulsan generates about 611 kg of CO2 per passenger, and 611 kilograms equals 1 347 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–Tacoma International Airport (SEA) and Ulsan Airport (USN).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

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