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

Flight distance from Seattle to Kōchi (Seattle–Tacoma International Airport – Kōchi Airport) is 5146 miles / 8282 kilometers / 4472 nautical miles. Estimated flight time is 10 hours 14 minutes.

## Map of flight path from Seattle to Kōchi.

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

## 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).

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

## Time difference and current local times

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

PST

JST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 603 kg (1 329 pounds).

## Frequent Flyer Miles Calculator

Seattle (SEA) → Kōchi (KCZ).

Distance:
5146
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
5146

Round trip?