Map of flight path and driving directions from Seoul to Iwakuni.
Shortest flight path between Seoul Gimpo International Airport (GMP) and Marine Corps Air Station Iwakuni (IWK).
How far is Iwakuni from Seoul?
There are several ways to calculate distances between Seoul and Iwakuni. Here are two common 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 earth.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).
Time difference and current local times
There is no time difference between Seoul and Iwakuni.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 82 kg (180 pounds).
Frequent Flyer Miles Calculator
Seoul (GMP) → Iwakuni (IWK).