Cheap flights from Seattle to Japan from $380
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Japan departing on 8/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Japan
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
China Airlines flights from Seattle to Japan
Our best China Airlines deals on Seattle to Japan flight tickets
Hawaiian Airlines flights from Seattle to Japan
Our best Hawaiian Airlines deals on Seattle to Japan flight tickets
See travel insights to Japan from
How to get the cheapest flight ticket from Seattle to Japan
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Japan?
The month of September is, on average, the cheapest month to fly to Japan from Seattle, with most prices found around $856. If you aren’t able to travel to Japan during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $898.
What is the cheapest day to depart on your flight to Japan?
On average, the least expensive day to fly to Japan from Seattle is on a Monday. momondo users have found tickets for Monday departures for as low as $971. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to Japan on a Friday will generally be more expensive and average around $1,203. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Japan?
Flying to Japan from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $999 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to Japan, so prices are often more expensive at around $1,159 per ticket.
What is the cheapest Seattle/Tacoma Intl to Japan flight route?
Fly from Seattle/Tacoma Intl to Tokyo Narita for the best Seattle/Tacoma Intl - Japan flight prices
How far in advance should I book a flight to Japan?
You are more likely to see cheaper flights to Japan from Seattle when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $1,121 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from Seattle for as low as $983 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Japan flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Japan?
Japan Airlines, Korean Air, and ANA are the most popular carriers operating from Seattle/Tacoma Intl to Japan
What airlines fly to Japan?
ANA, Delta and Japan Airlines are the top three most popular airlines that fly to Japan from Seattle according to our data. ANA is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 16 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Japan on average per day?
The number of flights available between Seattle and Japan is 11 per day as of June 2025. The most frequent departure time is 1:00PM, with 100% of daily flights leaving in the afternoon.
How many flights depart from Seattle to Japan on average per week?
77 flights are operational weekly from Seattle to Japan as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
Cheap Seattle to Japan flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Japan
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Japan?
Prices for flights from Seattle/Tacoma Intl Airport to Japan were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Japan?
There are 16 operators available for flights from Seattle/Tacoma Intl Airport to Japan as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Japan?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Japan.
What documentation or ID do you need to fly to Japan?
The necessary travel and health documents for your Japan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Japan?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Japan is Boeing 787-9 Dreamliner, representing 79.38% of all bookings. The subsequent popular models are Airbus A330-200 at 14.77%, Airbus A330 at 2.52%, and Airbus A330-900neo at 1.30%.
Best airlines flying from Seattle to Japan
Compare and see reviews for airlines that fly from Seattle to Japan with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $117 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $359 | Free Cancellation | Rating 7.8 2,494 reviews | |||
| PriceFrom $670 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom $672 | Free Cancellation | Rating 8.3 882 reviews | |||
| PriceFrom $702 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $702 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $705 | Free Cancellation | Rating 7.2 871 reviews | |||
| PriceFrom $713 | Free Cancellation | Rating 8.3 738 reviews | |||
| PriceFrom $719 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom $720 | Free Cancellation | Rating 8.3 1,489 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Japan?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Japan from Seattle.
Can I find flights from Seattle to Japan with flexible booking policies on momondo?
Yes. All flights to Japan from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seattle to Japan?
momondo provides multiple filters to help you find the best flight to Japan from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Japan right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to Japan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.