✈ SEA → HND
9H 56M FROM SEATTLE TO TOKYO. JET LAG IS NOW YOUR PERSONALITY.
Flight from Seattle to Tokyo
From Sea-Tac (SEA), USA North America → Haneda (HND), Japan Asia
How long is the flight from Seattle to Tokyo?
A nonstop flight from Seattle (SEA) to Tokyo (HND) takes about 9 hours 56 minutes, covering a great-circle distance of 4,792 miles (7,712 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
9h 56m
Nonstop, scheduled
Distance
4,792 mi
7,712 km · great-circle
Avg speed
777 km/h
Door-to-door including taxi
Time zones & jet lag
Seattle timezone
UTC-7
America/Los_Angeles
Tokyo timezone
UTC+9
Asia/Tokyo
Time difference
+16h
16 hours ahead
Jet lag (rough)
~16d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.