How far is Seoul from Shonai?

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

The driving distance from Shonai (SYO) to Seoul (ICN) is 1204 miles / 1937 kilometers, and travel time by car is about 26 hours 17 minutes.

Distance from Shonai to Seoul

There are several ways to calculate the distance from Shonai to Seoul. 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 Shonai to Seoul?

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

What is the time difference between Shonai and Seoul?

There is no time difference between Shonai and Seoul.

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

On average, flying from Shonai to Seoul 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 Shonai to Seoul

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

Airport information

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

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