Tokyo (HND) – Seattle (SEA)
- Distance
- 7,730 km
- 4,803 mi · 4,174 nm
- Flight time
- 8 h 58 min / 10 h 26 min
- Average gate to gate: HND → SEA / back
- Time difference
- 17 h / 16 h
- January / July
- CO2 per passenger
- 903 kg
- One way, economy, incl. RF (534 kg CO2 only)
- Passengers / year
- 329,052
- Aug 2025 – Jul 2026 · +9.1%
- Flights / week
- 28
- Both directions, average
- Seats filled
- 85%
- 388,155 seats a year
- Airlines nonstop
- 2
- DL, NH
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from HND
- 46°
- Heading from SEA
- 301°
- Halfway point
- 53.30, -177.29
- Great-circle km
- 7,711 km (sphere, for EU261)
- In the air HND → SEA
- 8 h 20 min
- In the air SEA → HND
- 9 h 49 min
- Clocks
- 17 h in January, 16 h in July
The estimate for a route without real times is 9 h 55 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 29,145 |
| Sep 2025 | 27,732 |
| Oct 2025 | 28,301 |
| Nov 2025 | 26,981 |
| Dec 2025 | 26,118 |
| Jan 2026 | 26,044 |
| Feb 2026 | 24,626 |
| Mar 2026 | 29,619 |
| Apr 2026 | 28,483 |
| May 2026 | 28,244 |
| Jun 2026 | 26,050 |
| Jul 2026 | 27,709 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 123 |
| Sep 2025 | 120 |
| Oct 2025 | 121 |
| Nov 2025 | 120 |
| Dec 2025 | 124 |
| Jan 2026 | 127 |
| Feb 2026 | 112 |
| Mar 2026 | 124 |
| Apr 2026 | 121 |
| May 2026 | 124 |
| Jun 2026 | 118 |
| Jul 2026 | 126 |
Airlines flying HND–SEA nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| DLDelta Air Lines | 14 | 58% |
| NHAll Nippon Airways | 14 | 42% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- B787-900 Dreamliner · 729 flights
- Airbus Industrie A350-900 · 727 flights
- Boeing 767-400/ER · 2 flights
- Airbus Industrie A330-900 · 1 flight
- Boeing 767-300/300ER · 1 flight
Also carried: 11,716 tonnes of freight and 2 tonnes of mail a year (passenger and cargo flights).
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 7,711 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.
Every airport pair between Tokyo and Seattle
Kilometres. Linked numbers have a page of their own. All Tokyo airports · All Seattle airports
More routes from HND
More routes from SEA
| Route | Distance | Passengers / year |
|---|---|---|
| SEA → DEN | 1,648 km | 1,819,437 |
| SEA → PHX | 1,781 km | 1,813,338 |
| SEA → LAX | 1,535 km | 1,810,795 |
| SEA → ANC | 2,331 km | 1,694,688 |
| SEA → SFO | 1,092 km | 1,628,228 |
| SEA → ORD | 2,769 km | 1,622,991 |
| SEA → LAS | 1,394 km | 1,596,435 |
| SEA → DFW | 2,671 km | 1,577,921 |
| SEA → SAN | 1,690 km | 1,233,726 |
| SEA → SLC | 1,108 km | 1,106,553 |