# 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
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

B Oshima Airport
City: Oshima
Country: 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.

PDT

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?