Flights from Seattle / Tacoma International Airport to Kantō

Flight deals from Seattle / Tacoma International Airport to Kantō

Looking for cheap tickets from Seattle / Tacoma International Airport to Kantō, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Flying from Seattle / Tacoma International Airport to Kantō

Arm yourself with these facts on the fly.
Cheapest flight found511 €
Cheapest month to flyMay
Average flight time10 hrs, 23 mins
Average flights per week267
Most popular airlineAlaska Airlines

Frequently asked questions

Yes - direct flights currently operate from Seattle / Tacoma International Airport to Tokyo Haneda Airport in Kantō.
We looked at all of the upcoming return flights from Seattle / Tacoma International Airport to Kantō we could find over the next 12 months. It looks like 511 € is the best price. This is good, compared to the average Kantō ticket price of 517 €.
The cheapest month to fly from Seattle / Tacoma International Airport to Tokyo Narita Airport is currently May.
The cheapest month to fly from Seattle / Tacoma International Airport to Tokyo Haneda Airport is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle / Tacoma International Airport to Kantō on Wednesday, 6 May 2026.
If you're flying from Seattle / Tacoma International, the cheapest city in Kantō to fly into is Tokyo. The cheapest airport serving Tokyo at the moment is Tokyo Narita.
The average flight time between Seattle / Tacoma International Airport and Kantō is 10 hours and 22 minutes.