$397 Find Cheap Flights from Seattle to Japan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Japan departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Seattle to Japan

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tokyo
Tokyo1 stop$830
Osaka
Osaka1 stop$831
Okinawa
Okinawa1 stop$1,015
Fukuoka
Fukuoka1 stop$1,075
Hiroshima
Hiroshima1 stop$1,054
Nagasaki
Nagasaki1 stop$837
Kumamoto
Kumamoto2 stops$1,122
Sendai
Sendai3 stops$1,418
Misawa
Misawa2 stops$1,247
Tokyo
Tokyo1 stop$830
Osaka
Osaka1 stop$831
Okinawa
Okinawa1 stop$1,015
Fukuoka
Fukuoka1 stop$1,075
Hiroshima
Hiroshima1 stop$1,054
Nagasaki
Nagasaki1 stop$837
Kumamoto
Kumamoto2 stops$1,122
Sendai
Sendai3 stops$1,418
Misawa
Misawa2 stops$1,247

Book Cheap Seattle to Japan Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Japan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Japan

Wed, Sep 2 - Wed, Sep 9
Japan Airlines Logo
1:15 pm - 8:10 pm
SEA
-
NGO
14h 55m
1 stop
Japan Airlines Logo
2:35 pm - 10:35 am
NGO
-
SEA
12h 00m
1 stop
$817Japan Airlines
Wed, Sep 23 - Tue, Oct 13
Japan Airlines Logo
1:15 pm - 11:40 am
SEA
-
NGO
30h 25m
1 stop
Japan Airlines Logo
8:20 am - 10:35 am
NGO
-
SEA
18h 15m
1 stop
$821Japan Airlines
Sun, Aug 23 - Fri, Sep 4
ANA Logo
4:30 pm - 12:35 pm
SEA
-
NGO
28h 05m
2 stops
ANA Logo
1:05 pm - 2:25 pm
NGO
-
SEA
17h 20m
2 stops
$823ANA
Tue, Sep 1 - Tue, Sep 29
ANA Logo
4:30 pm - 12:30 pm
SEA
-
NGO
28h 00m
2 stops
ANA Logo
1:05 pm - 2:25 pm
NGO
-
SEA
17h 20m
2 stops
$829ANA
Mon, Aug 17 - Thu, Sep 3
United Airlines Logo
4:30 pm - 7:00 pm
SEA
-
HND
10h 30mnonstop
United Airlines Logo
9:15 pm - 2:25 pm
HND
-
SEA
9h 10mnonstop
$830United Airlines
Mon, Aug 31 - Thu, Sep 10
United Airlines Logo
6:29 am - 2:10 pm
SEA
-
NRT
15h 41m
1 stop
United Airlines Logo
5:05 pm - 2:22 pm
NRT
-
SEA
13h 17m
1 stop
$833United Airlines
Mon, Sep 7 - Wed, Dec 9
Delta Logo
11:45 am - 2:20 pm
SEA
-
HND
10h 35mnonstop
Delta Logo
4:50 pm - 8:50 am
HND
-
SEA
9h 00mnonstop
$838Delta
Sun, Jul 26 - Thu, Sep 3
Delta Logo
1:05 pm - 3:35 pm
SEA
-
NRT
34h 30m
1 stop
Delta Logo
8:55 pm - 1:37 pm
NRT
-
SEA
32h 42m
1 stop
$839Delta
Sun, May 3 - Thu, Sep 10
Asiana Airlines Logo
12:10 am - 9:00 am
SEA
-
KIX
16h 50m
1 stop
Asiana Airlines Logo
7:45 pm - 3:15 pm
KIX
-
SEA
35h 30m
1 stop
$861Asiana Airlines
Sun, May 3 - Tue, Sep 8
Asiana Airlines Logo
12:10 am - 9:00 am
SEA
-
KIX
16h 50m
1 stop
Asiana Airlines Logo
10:30 am - 3:15 pm
KIX
-
SEA
20h 45m
1 stop
$862Asiana Airlines
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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Japan from Seattle found in the last 72 hours was to Tokyo, at $804 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 72 hours was $819.

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

The average price for all round-trip flights from Seattle to Japan depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Japan is generally in the evening, when round-trip flights cost $841 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Japan is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $969.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $954, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Japan, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Japan is January, when tickets cost $673 (return) on average. On the other hand, the most expensive months are May and December, when the average cost of round-trip tickets is $1,274 and $1,128 respectively.

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

The average price of all round-trip flights from Seattle to Japan clicked on KAYAK for each day over the last 12 months.

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 Thursdays and the most expensive ones on Saturdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Japan, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Japan, you should book around 6 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$397
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Seattle to Osaka Itami

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

Insights shared by verified travelers who flew the route from Seattle to Japan 
SarahFlew with ANA
SEA
-
HND
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
SEA
-
NRT
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 $460 one-way - $909 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.
8.4
ANAOverall score based on 1200 reviews
8.0Entertainment
7.7Food
8.5Boarding
8.2Comfort
8.7Crew
Airline reviews

The ladies are great seats should be a little bigger!

10.0 ExcellentJINJI JOO, Apr 2026
LAX - NRT
Read more ANA reviews

The ladies are great seats should be a little bigger!

Couple of hours delayed, we had to re-booked our Shinkansen reservation twice. United Aiines need to improve their time!

The check-in started 3 minutes early; there were people lining up a half hour before. I was third, and I got checked in and passes in hand for my connection as well; I walked away from the desk one minute before it was even supposed to be open. Amazing. That said, the food on the first leg of my trip was not good, and I didn’t finish it. Second leg, it was tasty. You get a cup of Häagen-Dazs after dinner. The staff were polite and helpful. Will use again.

Crew was fantastic. Seats were not completely lay flat but still comfortable to watch a show. International food was lobster which was very big but a little tough. The scallop appetizer was delicious. Loved the individual air conditioning vent at each seat. Flight overall was very smooth and very good.

Staff was friendly but couldn't find way to track them down during flight. Food tried to be gourmet but was just too unusual. Business class seats were hard. Even sitting on the pillow, was still painful. Have to give them credit for on-time flights and decent gate area.

Flight was excellent. Transfer from one airport to another airport for a connecting flight was difficult and stressful.

Overall good except the checkin process at Bangkok airport. Can ANA explain why the line for business class is longer than that for economy? I, BC passenger, had to move from BC line to economy line to get faster service.

Matsuyama to Tokyo is basically a puddle jumper flight, so it was as good as one should expect. No meal, no entertainment, and none expected.

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.

Seats were extremely cramped even for economy. Food was atrocious. Crew was fine but no follow up, additional drinks offered etc. For a 14 hour flight I expected more.

Overall, a solid flight experience. Boarding was quick and efficient, even with a full and overbooked flight. The flight crew did a great job providing attentive and friendly service throughout. I flew in economy, and while the seats were acceptable, they could definitely use more cushioning, especially for a 14-hour flight. By the end, it was quite uncomfortable to remain seated. Legroom was also limited, particularly with a bag stored under the seat and the passenger in front reclining. That said, everything else went smoothly, and I appreciated the professionalism of the crew.

The flight was delightful overall. The check-in and boarding were on smooth and on time. Amenities and staffs were elevated. However, if glasses were served instead of cups, there should be a complete premium.

Sure I would’ve liked a little more space, but it was better than economy. I bring my own food because I have food allergies it would be nice if they offered larger salads or more vegetables instead of starch it was really a good flight. I don’t wanna complain. I’m grateful to fly at all safely. Thank you to the pilots.

Flight crews are very attentive and polite. Cabin and toilets are clean. Food is above average for economy class. We missed our connecting flights because the first flight was delayed, the ground crews at Tokyo were very helpful, providing all the information and support (including cash for our train ticket) to get us to our destination. Very impressive. No wonder they are always at the top ten lists.

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.

American Airlines food is horrible. Also, paid to fly JAL on all segments, but received a much lower quality. I was disappointed to learn that we would be using American Airlines on this flight, which has less comfort, entertainment, choices, and lower standard of service. Overall not satisfied.

Food was very mediocre. Economy is pretty uncomfortable. Crew was excellent and responsive.

Not as good as I expected, I couldn't use the screen to watch movies or anything else because it wasn't 'STEADY' AT ALL, it moved every single time that the passenger who sat on that seat moved, that caused me fell dizzy and nauseous when I tried to use it, so I ended up with only sleeping and eating with no entertainment all my haul flight on premium economy seat, plus the passenger who sat next to me, she just loved to spread her very long hair down on my shoulder, face, arm, sometimes her hair just whacked my face till I really wanted to offer her my hairband!, super annoying 😑 and that my bad experience with that flight.

My plans changed and I tried to cancel or change the flight for credit but was giving the run around and denied . Not great

The crew was great and everything went smoothly coming and going.

My window seat did not have a window. I chose seat 11A thinking I would have a view. I had a wall instead.

See what I wrote in the previous section. This was a terrible experience. I would like refund.. I even paid an extra $70 for an aisle seat closer to the front to ensure that I got off early enough to catch the next flight. The fact that the plane did not wait, and even left eearlier, knowing that the first flight came in late, and was moved to a terminal three train stops away is appalling. My friend that flew JetBlue, their flight was delayed and came in later and the connecting flight WAITED for them. How is it that JetBlue could do that, and Alaska could not.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

Good staff. Comfortable seats. Had to check my bag because the flight was too full.

Loved this first class flight! Awesome food, snacks and drinks. Comfortable seat with foot rest. Good movie. Very friendly crew! Only thing I would suggest is having a screen on seat back in front of me so I didn’t have to watch the movie on my phone.

The crew was very attentive, boarding was orderly. I really liked the way Alaska Airlines gives boarding passes and dropping off my bags. Very smooth.

Once we were in the air, the flight was nice and smooth. The flight was about twenty minutes late to begin with, though, and then we needed to wait to land for another plane to land first.

Flight crew great! No WiFi not great. Someone took my bag not great!

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

The flight was operated by Latam. The aircraft had a technical issue and the flight was delayed for the next day. They grounded other passengers to get their airplane assigned to my flight. Most of he ground staff don't speak English (Orlando Airport), but were very polite.The crew on the other hand could speak English and Portuguese. On board service was good.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Everything you need to know for your flight from Seattle to Japan

Information on your arrival and departure airports