SEA → NRTSeattle to Tokyo

live

Direct flights from Seattle (SEA) to Tokyo (NRT): 14 nonstop departures observed each week across 2 airlines. The median arrival is 17 minutes early. No cancellations were recorded across the 4 tracked flights. The nonstop covers 7,656 km, an estimated 10 hours 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Tokyo. Updated 18 September 2026 at 19:23 UTC.

SEA Seattle smooth · +11
NRT Tokyo smooth · +0
7,656 km · ~10h 19m est.
dep bank 13:15–13:2014x weekly
Running clean · 2 airlines · 14x weekly · nonstop
82 / 100

route health from live SEA and NRT delay boards

Median arrival delay is −17 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−17 minacross the last 4 operated legs
Flight time~10h 19mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesJapan Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS

Flights AS823 13:20 daily

Japan AirlinesJL

Flights JL67 13:15 daily

History

operated legs · board outcomes
09-17AS823arrived−17
09-17JL67arrived−25
09-16AS823arrived−16
09-16JL67arrived−18

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +11 min smooth ⛅ overcast · S 6 kt Full SEA delay board →
NRTTokyo +0 min smooth 🌫 overcast · N 14 kt Full NRT delay board →

Weather lens

Current conditions put the pressure at NRT: 30% odds of a 15+ minute delay and around +0 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Tokyo route actually runs

Pro Flight Search records official board updates for nonstop SEA to NRT flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seattle (SEA) to Tokyo (NRT) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-NRT
How we measure this →

SEA to NRT questions

Is SEA–NRT running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 82/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–NRT?

Operators schedule 2 departures from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the NRT delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to NRT?

Great-circle distance is 7,656 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 570–686 min gate-to-gate on this route.

How often does SEA–NRT fly?

2 carriers operate this route, around 14 flights a week between them. Compare carrier days and times in the airline list above.