Air Miles Calculator

Distance between Seattle, WA (SEA) and Niigata (KIJ)

Flight distance from Seattle to Niigata (Seattle–Tacoma International Airport – Niigata Airport) is 4714 miles / 7587 kilometers / 4097 nautical miles. Estimated flight time is 9 hours 25 minutes.

Map of flight path from Seattle to Niigata.

Shortest flight path between Seattle–Tacoma International Airport (SEA) and Niigata Airport (KIJ).

How far is Niigata from Seattle?

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

Vincenty's formula (applied above)
  • 4714.487 miles
  • 7587.231 kilometers
  • 4096.777 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
  • 4702.486 miles
  • 7567.918 kilometers
  • 4086.349 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 Niigata Airport
City: Niigata
Country: Japan Flag of Japan
IATA Code: KIJ
ICAO Code: RJSN
Coordinates: 37°57′21″N, 139°7′15″E

Time difference and current local times

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

Time Difference

Seattle, WA

 PST

Niigata

 JST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 547 kg (1 206 pounds).

Frequent Flyer Miles Calculator

Seattle (SEA) → Niigata (KIJ).

Distance:
4714
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4714

Round trip?