Air Miles Calculator

Distance between Seattle, WA (SEA) and Oshima (OIM)

Flight distance from Seattle to Oshima (Seattle–Tacoma International Airport – Oshima Airport) is 4858 miles / 7818 kilometers / 4221 nautical miles. Estimated flight time is 9 hours 41 minutes.

Map of flight path from Seattle to Oshima.

Shortest flight path between Seattle–Tacoma International Airport (SEA) and Oshima Airport (OIM).

How far is Oshima from Seattle?

There are several ways to calculate distances between Seattle and Oshima. Here are two common methods:

Vincenty's formula (applied above)
  • 4857.665 miles
  • 7817.654 kilometers
  • 4221.195 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
  • 4846.036 miles
  • 7798.938 kilometers
  • 4211.090 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 Oshima Airport
City: Oshima
Country: Japan Flag of Japan
IATA Code: OIM
ICAO Code: RJTO
Coordinates: 34°46′55″N, 139°21′36″E

Time difference and current local times

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

Time Difference

Seattle, WA

 PDT

Oshima

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 565 kg (1 246 pounds).

Frequent Flyer Miles Calculator

Seattle (SEA) → Oshima (OIM).

Distance:
4858
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4858

Round trip?