Map of flight path from Seattle to Okayama.
Shortest flight path between Seattle–Tacoma International Airport (SEA) and Okayama Airport (OKJ).
How far is Okayama from Seattle?
There are several ways to calculate distances between Seattle and Okayama. Here are two common methods:Vincenty's formula (applied above)
- 5077.742 miles
- 8171.833 kilometers
- 4412.437 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
- 5065.583 miles
- 8152.266 kilometers
- 4401.871 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).
Time difference and current local times
The time difference between Seattle and Okayama is 17 hours. Okayama is 17 hours ahead of Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 594 kg (1 309 pounds).
Frequent Flyer Miles Calculator
Seattle (SEA) → Okayama (OKJ).