How far is Ketchikan, AK, from Seoul?

The distance between Seoul (Seoul Gimpo International Airport) and Ketchikan (Ketchikan International Airport) is 4551 miles / 7323 kilometers / 3954 nautical miles.

Distance from Seoul to Ketchikan

There are several ways to calculate the distance from Seoul to Ketchikan. Here are two standard methods:

Vincenty's formula (applied above)

• 4550.583 miles
• 7323.454 kilometers
• 3954.349 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

• 4538.831 miles
• 7304.541 kilometers
• 3944.137 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 Seoul to Ketchikan?

The estimated flight time from Seoul Gimpo International Airport to Ketchikan International Airport is 9 hours and 6 minutes.

What is the time difference between Seoul and Ketchikan?

The time difference between Seoul and Ketchikan is 18 hours. Ketchikan is 18 hours behind Seoul.

Flight carbon footprint between Seoul Gimpo International Airport (GMP) and Ketchikan International Airport (KTN)

On average, flying from Seoul to Ketchikan generates about 526 kg of CO2 per passenger, and 526 kilograms equals 1 159 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seoul to Ketchikan

See the map of the shortest flight path between Seoul Gimpo International Airport (GMP) and Ketchikan International Airport (KTN).

Airport information

Origin	Seoul Gimpo International Airport
City:	Seoul
Country:	South Korea
IATA Code:	GMP
ICAO Code:	RKSS
Coordinates:	37°33′29″N, 126°47′27″E

Destination	Ketchikan International Airport
City:	Ketchikan, AK
Country:	United States
IATA Code:	KTN
ICAO Code:	PAKT
Coordinates:	55°21′19″N, 131°42′38″W