How far is Shonai from Seoul?

The distance between Seoul (Seoul Incheon International Airport) and Shonai (Shonai Airport) is 732 miles / 1179 kilometers / 636 nautical miles.

The driving distance from Seoul (ICN) to Shonai (SYO) is 1205 miles / 1940 kilometers, and travel time by car is about 26 hours 22 minutes.

Distance from Seoul to Shonai

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

Vincenty's formula (applied above)

• 732.330 miles
• 1178.571 kilometers
• 636.378 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

• 730.627 miles
• 1175.830 kilometers
• 634.898 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 Shonai?

The estimated flight time from Seoul Incheon International Airport to Shonai Airport is 1 hour and 53 minutes.

What is the time difference between Seoul and Shonai?

There is no time difference between Seoul and Shonai.

Flight carbon footprint between Seoul Incheon International Airport (ICN) and Shonai Airport (SYO)

On average, flying from Seoul to Shonai generates about 128 kg of CO2 per passenger, and 128 kilograms equals 282 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 Shonai

See the map of the shortest flight path between Seoul Incheon International Airport (ICN) and Shonai Airport (SYO).

Airport information

Origin	Seoul Incheon International Airport
City:	Seoul
Country:	South Korea
IATA Code:	ICN
ICAO Code:	RKSI
Coordinates:	37°27′36″N, 126°26′26″E

Destination	Shonai Airport
City:	Shonai
Country:	Japan
IATA Code:	SYO
ICAO Code:	RJSY
Coordinates:	38°48′43″N, 139°47′13″E