Air Miles Calculator

Distance between Seattle, WA (SEA) and Okayama (OKJ)

Flight distance from Seattle to Okayama (Seattle–Tacoma International Airport – Okayama Airport) is 5078 miles / 8172 kilometers / 4412 nautical miles. Estimated flight time is 10 hours 6 minutes.

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).

Airport information


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

B Okayama Airport
City: Okayama
Country: Japan Flag of Japan
IATA Code: OKJ
ICAO Code: RJOB
Coordinates: 34°45′24″N, 133°51′17″E

Time difference and current local times

The time difference between Seattle and Okayama is 17 hours. Okayama is 17 hours ahead of Seattle.

Time Difference

Seattle, WA

 PST

Okayama

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 594 kg (1 309 pounds).

Frequent Flyer Miles Calculator

Seattle (SEA) → Okayama (OKJ).

Distance:
5078
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
5078

Round trip?