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How far is Iwakuni from Seoul?

The distance between Seoul (Seoul Gimpo International Airport) and Iwakuni (Marine Corps Air Station Iwakuni) is 386 miles / 621 kilometers / 335 nautical miles.

The driving distance from Seoul (GMP) to Iwakuni (IWK) is 533 miles / 858 kilometers, and travel time by car is about 13 hours 50 minutes.

Seoul Gimpo International Airport – Marine Corps Air Station Iwakuni

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386
Miles
Distance arrow
621
Kilometers
Distance arrow
335
Nautical miles

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Distance from Seoul to Iwakuni

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

Vincenty's formula (applied above)
  • 385.655 miles
  • 620.651 kilometers
  • 335.125 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
  • 385.417 miles
  • 620.268 kilometers
  • 334.918 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 Iwakuni?

The estimated flight time from Seoul Gimpo International Airport to Marine Corps Air Station Iwakuni is 1 hour and 13 minutes.

What is the time difference between Seoul and Iwakuni?

There is no time difference between Seoul and Iwakuni.

Flight carbon footprint between Seoul Gimpo International Airport (GMP) and Marine Corps Air Station Iwakuni (IWK)

On average, flying from Seoul to Iwakuni generates about 82 kg of CO2 per passenger, and 82 kilograms equals 180 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seoul to Iwakuni

See the map of the shortest flight path between Seoul Gimpo International Airport (GMP) and Marine Corps Air Station Iwakuni (IWK).

Airport information

Origin Seoul Gimpo International Airport
City: Seoul
Country: South Korea Flag of South Korea
IATA Code: GMP
ICAO Code: RKSS
Coordinates: 37°33′29″N, 126°47′27″E
Destination Marine Corps Air Station Iwakuni
City: Iwakuni
Country: Japan Flag of Japan
IATA Code: IWK
ICAO Code: RJOI
Coordinates: 34°8′38″N, 132°14′9″E