How far is Iwakuni from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Iwakuni (Marine Corps Air Station Iwakuni) is 5172 miles / 8323 kilometers / 4494 nautical miles.

Distance from Seattle to Iwakuni

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

Vincenty's formula (applied above)

• 5171.627 miles
• 8322.926 kilometers
• 4494.021 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

• 5159.397 miles
• 8303.244 kilometers
• 4483.393 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 Iwakuni?

The estimated flight time from Seattle–Tacoma International Airport to Marine Corps Air Station Iwakuni is 10 hours and 17 minutes.

What is the time difference between Seattle and Iwakuni?

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

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Marine Corps Air Station Iwakuni (IWK)

On average, flying from Seattle to Iwakuni generates about 606 kg of CO2 per passenger, and 606 kilograms equals 1 337 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Iwakuni

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Marine Corps Air Station Iwakuni (IWK).

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	Marine Corps Air Station Iwakuni
City:	Iwakuni
Country:	Japan
IATA Code:	IWK
ICAO Code:	RJOI
Coordinates:	34°8′38″N, 132°14′9″E