How far is Shonai from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Shonai (Shonai Airport) is 4648 miles / 7480 kilometers / 4039 nautical miles.

Distance from Seattle to Shonai

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

Vincenty's formula (applied above)

• 4647.571 miles
• 7479.540 kilometers
• 4038.629 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

• 4635.561 miles
• 7460.212 kilometers
• 4028.192 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 Seattle to Shonai?

The estimated flight time from Seattle–Tacoma International Airport to Shonai Airport is 9 hours and 17 minutes.

What is the time difference between Seattle and Shonai?

The time difference between Seattle and Shonai is 16 hours. Shonai is 16 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Shonai Airport (SYO)

On average, flying from Seattle to Shonai generates about 538 kg of CO2 per passenger, and 538 kilograms equals 1 187 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Shonai

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Shonai Airport (SYO).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

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