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Cheap Flights from Seattle to Japan

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Kobe
13h 15m2 stops
from $777per person
Okinawa
14h 55m2 stops
from $781per person
Osaka
13h 35m2 stops
from $782per person
Sapporo
12h 25m2 stops
from $782per person
Fukuoka
15h 45m2 stops
from $844per person
Nagoya
14h 50m2 stops
from $880per person
Aomori
20h 50m2 stops
from $883per person
Hiroshima
16h 20m2 stops
from $897per person
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Booking Insights

KAYAK's insights & trends for Seattle to Japan flights

Get data-powered insights and trends into flights from Seattle to Japan to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Japan flight route?

The cheapest ticket to Japan from Seattle found in the last 5 days was to Tokyo, at $859 round-trip. The most popular route is from Seattle (SEA) to Tokyo Haneda Airport (HND), and the cheapest round-trip airline ticket found on this route in the last 5 days was $859.

What is the cheapest time of day to fly to Japan?

The cheapest time of day to fly to Japan is generally in the evening, when round-trip flights cost $896 on average. Morning departures are around 17% more expensive than evening flights, on average. The most expensive time of day to fly to Japan is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,047.

Can I save money by flying with a layover from Seattle to Japan?

No, with an average price for the route of $1,168, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Seattle to Japan?

The cheapest month for flights from Seattle to Japan is January, when tickets cost $704 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,224 and $1,171 respectively.

What’s the cheapest day of the week to fly from Seattle to Japan?

When flying from Seattle to Japan, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

How far in advance should I book a flight from Seattle to Japan?

To get a below average price on the flight from Seattle to Japan, you should book around 4 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low season

December

Cheapest flight

$408
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Seattle to Sapporo

Flights from Seattle to Japan: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to Japan 
ChrisFlew with Japan Airlines-Aug 2026
Empty your luggages when you go to Tokyo so you can enjoy shopping!
SarahFlew with ANA-Apr 2026
Google Maps and Google translate are your friends! Also, make sure to have cash, most places do accept card, but in the big markets, more places will be cash only.
GFlew with Hawaiian Airlines-Feb 2026
Bring your own tasty snacks because the provided food is average airplane food. Bring your own entertainment; download to your phone to watch something interesting.

FAQs - booking Japan flights

  • How early should I arrive at SEA airport?

    For international flights, we recommend you arrive at the airport at least 3h before your scheduled departure time. This will allow you time to park your car, check in, get through security, explore and even eat before leaving. You can also sign up for pre-check to avoid the long lines at the security checkpoints.

  • Can I sleep at HND airport?

    You will find comfortable sofas, benches, seats without armrests, and carpeted floors to sprawl out on in the International Terminal. Alternatively, if you prefer more comfortable options, you can sleep at one of the many hotels in and around the airport. One such hotel is the First Cabin Tokyo Haneda Hotel, located on arrivals Floor 1F in Domestic Terminal 1. You can use the monorail or complimentary shuttle bus for transfers between terminals. The one-person rooms at the hotel resemble plane cabins with no en-suite washrooms.

  • Where can I find the baby care rooms at HND?

    There are multiple baby care rooms in all the terminals at HND with baby chairs, hot water dispensers, washbasins, and private nursing booths. In Terminal 1, there are 6 nurseries in the arrivals lobby and 9 in the departures lobby. In Terminal 2, there are 7 nurseries in the arrivals lobby and 9 in the departures lobby, among many others throughout the airport, which are very easy to locate. The restrooms also have to change tables and small urinals for young boys. You can also rent a stroller from any information counter.

  • Where can I relax at SEA?

    If you are looking for a place to unwind at the airport, SEA has several lounges that you can access through a lounge membership program, by paying at the door, or by purchasing a day pass. Some of these lounges include the Centurion Lounge, adjacent to gate 33 on concourse B, and The Club at SEA opposite Gate A11 on Concourse A in the central terminal.

  • How does KAYAK find such low prices on flights from Seattle to Japan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Japan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Japan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Japan is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Japan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Japan with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Japan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Japan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Japan

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Tokyo $478 one-way - $1,101 round-trip
  • At Seattle-Tacoma International Airport (SEA), you can store your bags and rent baggage carts at Smarte Carte Baggage Storage, located between carousels 12 and 13 in the baggage claim area. Rented baggage carts cannot be taken through security to the other side, so you have to rent another on either side.
  • There is an Art Walk from Starbucks in the central terminal to gate A14 at SEA, where you can admire the vast collection of glass, paintings, sculptures, and sound artworks. There are also live music performances throughout the airport that you can stop at.
  • In the Departure Lobby of both Terminals 1 and 2 at Haneda Airport (HND), there are 3 play areas where your kids can play and unwind after being cooped up in a plane for hours. Another play area in the international terminal is near Gates 106 and 146.
  • Suppose you would like a quiet place to pray and reflect while at HND. There is a prayer room on 3F of the Departure Lobby of the international terminal with pre-prayer washing facilities. There is also a separate Japanese shrine (Shinto shrine) located in the 1F Marketplace of Terminal 1.
  • HND’s Terminal 1 has an observation deck in Tokyo Pop Town with a moon viewing platform on 6F and the rooftop where the Sky Station serves food and drinks. In Terminal 2, the observation deck is at the West Park Café Sky Fountain on 5F, where you can eat too.

Reviews of the top 5 airlines serving from Seattle to Japan

 
Need help choosing which airline to fly with from Seattle to Japan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
Japan AirlinesOverall score based on 1910 reviews
8.2Comfort
7.8Entertainment
7.7Food
8.4Boarding
8.7Crew
Airline reviews

Since I traveled on my birthday, they gave me a gift and a card. How thoughtful and caring.

10.0 ExcellentChris, Aug 2026
Read more Japan Airlines reviews

Since I traveled on my birthday, they gave me a gift and a card. How thoughtful and caring.

Our flight was canceled, then they moved us to a different flight number yet we didn’t receive notifications timely. We had to find out the latest on our own / later AA sent a text with the updated info..

They didn't tell me they changed my flight. So I got confused on what happened to my flight.

JOKE of a company with the most Ridiculous policies. JAL is amazing, KAYAK/UNDERPRICER is the worst company I have ever dealt with, NEVER AGAIN

No food at all so it was a bit of a culture shock for international travellers with connecting domestic flights.

Excellent! So happy that the crew members were so helpful and friendly and able to understandably communicate. They’re very receptive with someone like me, with disability. I love that I did not even have to ask for luggage help like, having to place and take down my carry-on luggage in and out of the over-head compartment. Hope, help is extended to disabled passenger(s) through out class classifications they’ve bought; economy or business class it might be. As a disabled person myself, I’m truly of great appreciation of this kind of help. Means a lot !!! Thank you so very much JAL crew. You out done others on this customer service part of the trip. Please continue to do so. From now on, I’ll choose JAL as my airline whenever I have to fly to any southeast asian countries. And I will disseminate my excellent travel experience with you to others.

put me in front row, screen was tiny, movie slection wasnt very good will be flying back on another airlines

It was good but need mor amenities for toiletries and entertainment

First experience with JAL so was okay to pretty good. 10 hour flight in premium select seat. . Seats in that category should be better than pretty good. Seat pan a little short for tall people but plenty of leg room; I think JAL in process of new planes? Also, — they could have offered a bit more water throughout flight and meals not the greatest. That said, certainly 200 percent better than a very recent AK Air International flight in similar cabin class in comfort and meals.

Need new movies, a lots of them are 20-10 years old or older. It us a very long flight we need good entertainment. Please load more new movies!

I was expecting to fly in a Japanese airline because that what I bought, very disappointed finding out the change of airline without any explanation.

Excellent. There were setbacks, but it had nothing to do with the crew. Mostly, mechanical which delayed our flight.

It was so disappointed trip by unexpected company's fault delay. It had taken 3 hours delay for mechanical maintenance plus another 3 hours for bad weather.

SEA HND sector internet only worked for the last 2.5hrs of flight….. never had this kind of incident with other airlines

12 of the 14 hours were in the dark, all during daylight. Didn’t use my light because it disturbed other people it was illuminating. 14 hours sitting upright in a cramped space was horrible.

I’ve always had pleasant experiences with ANA and that has made me a loyal customer.

The staff is amazing, I cannot stress that enough! The food is really good and snacks at stations to take for yourselves. Economy seating is fine, not the most comfortable, but our friends in Premium Economy said they were very comfortable! Decent entertainment options, but being built in, you have to use their cheap headsets unless you have your own plug in ones. I only have Bluetooth earbuds.

Great service, wonderful meals, excellent entertainment, clean bathrooms, top notch experience

It was very good. Lots of room with superior food and service. I will not hesitate to fly ANA in the future!

I chose my seat for the window: there wasn’t a window in my row. The charging function for my device didn’t work.

It was a good experience because it was unremarkable. The exception was we were an hour delayed.

Flight departure on time & arrived early. Stewardesses were pleasant, efficient, and polite. Aircraft was clean and seats were comfortable.

Leave on time. Arrives in time. Good service and friendly staff.

Last minute change in gate to satellite N a bit of a hassle since I needed a wheelchair . Someone did come and get me to the gate but it was close. Then plane late. It’s hard on older passengers and families to have to trek from one gate to another.

I would go on Alaska Airlines again. The check-in process was smooth and also the security lines flowed. I liked the new equipment to weight the bags. It was seamless.

I was able to check my bag at gate as it was a totally full flight. That helped this older woman. I appreciated that you recycle the cans. The flight attendant was very organized as she went thru cabin collecting trash. I’d prefer something other than pretzels as a snack.

We paid a lot of money for a window seat and there was no window! Never been in a plane with no window at all seat

Direct flight is the best way to go. Crew was friendly. Plane was clean. Overall great experience.

Gate agent was extremely rude and yelling at passengers during boarding. Then onboard, a flight attendant was also yelling at passengers. Ruined the experience, Alaska is usually better than this.

The attendants seemed a little stressed, but were very nice. Boarding required taking a shuttle bus to the plane, which was weird and we were packed in like sardines. The internet worked great which was nice. The flight was quite bumpy, but that seemed to be a weather issue more than anything. I got where I needed to get, so overall it was fine!

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Everything worked smoothly, never had a concern with the flight from start to finish.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

We had selected seats in the app that were a 2x2 format in the middle of the plane. Our seats when we got on the plane had been moved to the back rows in a 3x1 format. What’s the point of paying up for tickets that allow seat selection if the airline will just change them?

More options for your flight from Seattle to Japan

Complete your trip to Japan with a hotel stay or car rental