"See actual flight paths with flightpaths.com"
Weather, politics and local regulations can affect the choice of airspace and flight corridors. Flightpaths.com lets you see the real flight paths and compare passenger airlines and flight times simplified on an interactive map.
Flights from Tokyo (HND), Japan to Seattle (SEA), USA illustrated on a map. Based on 36 recorded flights, the distance can vary between 4898 and 5029 miles.
Japan
Over water
Japan
Over water
Japan
Over water
Canada
You can also check the reverse route: Seattle to Tokyo