Air Miles Calculator

Distance between Seattle, WA (SEA) and Osaka (KIX)

Flight distance from Seattle to Osaka (Seattle–Tacoma International Airport – Kansai International Airport) is 5040 miles / 8111 kilometers / 4379 nautical miles. Estimated flight time is 10 hours 2 minutes.

Map of flight path from Seattle to Osaka.

Shortest flight path between Seattle–Tacoma International Airport (SEA) and Kansai International Airport (KIX).

How far is Osaka from Seattle?

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

Vincenty's formula (applied above)
  • 5039.694 miles
  • 8110.601 kilometers
  • 4379.374 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
  • 5027.708 miles
  • 8091.312 kilometers
  • 4368.959 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 Kansai International Airport
City: Osaka
Country: Japan Flag of Japan
IATA Code: KIX
ICAO Code: RJBB
Coordinates: 34°25′38″N, 135°14′38″E

Time difference and current local times

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

Time Difference

Seattle, WA

 PST

Osaka

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 589 kg (1 299 pounds).

Frequent Flyer Miles Calculator

Seattle (SEA) → Osaka (KIX).

Distance:
5040
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
5040

Round trip?