# Distance between Seattle, WA (SEA) and Hachijojima (HAC)

Flight distance from Seattle to Hachijojima (Seattle–Tacoma International Airport – Hachijojima Airport) is 4921 miles / 7920 kilometers / 4276 nautical miles. Estimated flight time is 9 hours 49 minutes.

## Map of flight path from Seattle to Hachijojima.

Shortest flight path between Seattle–Tacoma International Airport (SEA) and Hachijojima Airport (HAC).

## How far is Hachijojima from Seattle?

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

Vincenty's formula (applied above)
• 4921.204 miles
• 7919.909 kilometers
• 4276.409 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
• 4909.840 miles
• 7901.622 kilometers
• 4266.535 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 Hachijojima Airport
City: Hachijojima
Country: Japan
IATA Code: HAC
ICAO Code: RJTH
Coordinates: 33°6′54″N, 139°47′9″E

## Time difference and current local times

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

PST

JST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 574 kg (1 265 pounds).

## Frequent Flyer Miles Calculator

Seattle (SEA) → Hachijojima (HAC).

Distance:
4921
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
4921

Round trip?