Map of flight path from Seattle to Tokyo.
Shortest flight path between Seattle–Tacoma International Airport (SEA) and Haneda Airport (HND).
How far is Tokyo from Seattle?
There are several ways to calculate distances between Seattle and Tokyo. Here are two common methods:Vincenty's formula (applied above)
- 4803.504 miles
- 7730.490 kilometers
- 4174.130 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
- 4791.822 miles
- 7711.690 kilometers
- 4163.980 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).
Time difference and current local times
The time difference between Seattle and Tokyo is 17 hours. Tokyo is 17 hours ahead of Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 558 kg (1 231 pounds).
Frequent Flyer Miles Calculator
Seattle (SEA) → Tokyo (HND).