Distance From Kenmore Air Harbor Seaplane Base to Narita International Airport, LKE - NRT Distance

The distance from Kenmore Air Harbor Seaplane Base (LKE) to Narita International Airport (NRT) is 4750 miles or 7644 kilometers or 4125 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

---

How long does it take to travel from Seattle ( United States ) to Narita ( Japan )?

A one-way nonstop (direct) flight between Seattle and Narita takes around 10 hours 55 minutes.

Estimated flight time from Kenmore Air Harbor Seaplane Base, Seattle, United States to Narita International Airport, Narita, Japan is 10 hours 55 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • LKE - NRT

Kilometers		7644 km
Statute Miles		4750 miles
Nautical Miles		4125 nm
Avg. Time of Flight		10 hours 55 minutes

Kenmore Air Harbor Seaplane Base to Narita International Airport Flight Route Map - LKE to NRT Flight Path

Location of Kenmore Air Harbor Seaplane Base & Narita International Airport is given below.
Click the map to view Seattle to Narita nonstop flight path and travel direction.

Click to see flight route on Google Map between Seattle, United States and Narita, Japan. .

Nonstop flight route between Seattle, United States and Narita, Japan.

Time Difference Between the Airports • LKE - NRT

Time difference between Seattle (United States) and Narita (Japan) is 15 Hours.
Narita time is 15 Hours ahead of Seattle.

Location	Local Time
Seattle (United States)	2026-09-23, 18:53:21 MDT
Narita (Japan)	2026-09-24, 09:53:21 JST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Kenmore Air Harbor Seaplane Base (LKE / W55) Seattle, United States

Destination

Narita International Airport (NRT / RJAA) Narita, Japan