Air Miles Calculator

Distance between Seoul (GMP) and Kumamoto (KMJ)

Flight distance from Seoul to Kumamoto (Seoul Gimpo International Airport – Kumamoto Airport) is 398 miles / 641 kilometers / 346 nautical miles. Estimated flight time is 1 hour 15 minutes.

Driving distance from Seoul (GMP) to Kumamoto (KMJ) is 463 miles / 745 kilometers and travel time by car is about 45 hours 53 minutes.

Map of flight path and driving directions from Seoul to Kumamoto.

Shortest flight path between Seoul Gimpo International Airport (GMP) and Kumamoto Airport (KMJ).

How far is Kumamoto from Seoul?

There are several ways to calculate distances between Seoul and Kumamoto. Here are two common methods:

Vincenty's formula (applied above)
  • 398.403 miles
  • 641.167 kilometers
  • 346.202 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
  • 398.709 miles
  • 641.660 kilometers
  • 346.468 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).

Airport information


A 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

B Kumamoto Airport
City: Kumamoto
Country: Japan Flag of Japan
IATA Code: KMJ
ICAO Code: RJFT
Coordinates: 32°50′14″N, 130°51′17″E

Time difference and current local times

There is no time difference between Seoul and Kumamoto.

Time Difference

Seoul

 KST

Kumamoto

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 84 kg (184 pounds).

Frequent Flyer Miles Calculator

Seoul (GMP) → Kumamoto (KMJ).

Distance:
398
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
398

Round trip?