Air Miles Calculator

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 Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

B Hachijojima Airport
City: Hachijojima
Country: Japan Flag of 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.

Time Difference

Seattle, WA

 PST

Hachijojima

 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?