Flights from Seattle / Tacoma International Airport to Kantō

Flight deals from Seattle / Tacoma International Airport to Kantō

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Kantō? If you want to travel next month, return fares start from $1,549. 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 found$1,185
Cheapest month to flySeptember
Average flight time10 hrs, 25 mins
Average flights per week95
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 $1,185 is the best price. This is good, compared to the average Kantō ticket price of $1,304.
The cheapest month to fly from Seattle / Tacoma International Airport to Tokyo Haneda Airport is currently August.
The cheapest month to fly from Seattle / Tacoma International Airport to Tokyo Narita Airport is usually September.
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 Tuesday, 1 September 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 25 minutes.