Great-circle route SEA ↔ HND. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| SEA → HND Seattle to Tokyo |
14/wk | Daily | All Nippon Airways, Delta Air Lines |
| HND → SEA Tokyo to Seattle |
14/wk | Daily | All Nippon Airways, Delta Air Lines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 323,464 passengers on 1,455 flights between SEA and HND — about 887 a day — filling 84% of the 383,643 seats flown. Delta Air Lines Inc. carried the most passengers (59%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the SEA–HND nonstop, including All Nippon Airways, Delta Air Lines.
Recent scheduled departures on this route have used the Airbus A350-900, Boeing 787-9, 78I.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance between Seattle Tacoma International Airport and Tokyo Haneda International Airport is 4,792 miles, or 7,712 kilometres.
| Great-circle distance | 4,792 mi |
| Kilometres | 7,712 km |
| Nautical miles | 4,164 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly the route nonstop, with about 28 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 9h 44m in the air. That is a great-circle estimate from the 4,792-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 14 a week from Seattle to Tokyo and 14 a week from Tokyo to Seattle, from our most recent schedule sample.
All Nippon Airways, Delta Air Lines.
In 2025, airlines reported 323,464 passengers on 1,455 scheduled flights between SEA and HND — about 887 a day — filling 84% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Airbus A350-900, Boeing 787-9, 78I. Assignments change by season and by time of day.
