Air Miles Calculator

Distance between Seattle, WA (SEA) and Tokyo (NRT)

Distance from Seattle–Tacoma International Airport to Narita International Airport is 4769 miles / 7675 kilometers / 4144 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 4768.836 miles
  • 7674.697 kilometers
  • 4144.005 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
  • 4757.191 miles
  • 7655.956 kilometers
  • 4133.886 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Seattle–Tacoma International Airport (SEA) to Narita International Airport (NRT) is 9 hours 31 minutes.

Time difference and current local times

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

Time Difference

Seattle
Tokyo

Seattle, WA

 PST

Tokyo

 JST

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 Narita International Airport
City: Tokyo
Country: Japan Flag of Japan
IATA Code: NRT
ICAO Code: RJAA
Coordinates: 35°45′52″N, 140°23′9″E

Map

Flight map from Seattle to Tokyo.

Frequent Flyer Miles Calculator

Seattle (SEA) → Tokyo (NRT).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
4769
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4769

Round trip?