Air Miles Calculator

Distance between Seattle, WA (SEA) and Kōchi (KCZ)

Distance from Seattle to Kōchi (Seattle–Tacoma International Airport – Kōchi Airport) is 5146 miles / 8282 kilometers / 4472 nautical miles.

How far is Kōchi from Seattle?

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

Vincenty's formula (applied above)
  • 5145.936 miles
  • 8281.581 kilometers
  • 4471.696 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
  • 5133.919 miles
  • 8262.242 kilometers
  • 4461.254 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).

Flight duration

Estimated flight time from Seattle–Tacoma International Airport (SEA) to Kōchi Airport (KCZ) is 10 hours 14 minutes.

Time difference and current local times

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

Time Difference

Seattle
Kōchi

Seattle, WA

 PDT

Kōchi

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 611 kg (1 346 pounds).

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 Kōchi Airport
City: Kōchi
Country: Japan Flag of Japan
IATA Code: KCZ
ICAO Code: RJOK
Coordinates: 33°32′45″N, 133°40′8″E

Seattle to Kōchi flight path

Shortest flight path between Seattle–Tacoma International Airport (SEA) and Kōchi Airport (KCZ).

Frequent Flyer Miles Calculator

Seattle (SEA) → Kōchi (KCZ).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
5146
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
5146

Round trip?