How far is Cheongju from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Cheongju (Cheongju International Airport) is 5217 miles / 8397 kilometers / 4534 nautical miles.

Distance from Seattle to Cheongju

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

Vincenty's formula (applied above)

• 5217.491 miles
• 8396.737 kilometers
• 4533.875 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

• 5204.533 miles
• 8375.883 kilometers
• 4522.615 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 Cheongju?

The estimated flight time from Seattle–Tacoma International Airport to Cheongju International Airport is 10 hours and 22 minutes.

What is the time difference between Seattle and Cheongju?

The time difference between Seattle and Cheongju is 17 hours. Cheongju is 17 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Cheongju International Airport (CJJ)

On average, flying from Seattle to Cheongju generates about 612 kg of CO2 per passenger, and 612 kilograms equals 1 350 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Cheongju

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Cheongju International Airport (CJJ).

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	Cheongju International Airport
City:	Cheongju
Country:	South Korea
IATA Code:	CJJ
ICAO Code:	RKTU
Coordinates:	36°42′59″N, 127°29′56″E