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$207+ Cheap flights from Seattle (SEA) to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FUK
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find flight deals from Seattle to Japan

Cheapest flights from Seattle to Japan
Explore the most affordable flight options available from Seattle to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Fri 12/58:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$382
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Fri 12/58:45 pmKIX - SEA
1 stop18h 24mAlaska Airlines
Deal found 11/12$399
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Tue 12/98:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$435
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Tue 12/98:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$452
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Thu 12/48:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$462
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Thu 12/48:45 pmKIX - SEA
1 stop18h 24mAlaska Airlines
Deal found 11/12$479
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Sat 12/68:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$485
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Sat 12/68:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$502
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amSEA - KIX
1 stop18h 45mAlaska Airlines
Sun 12/78:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/12$540
This Alaska Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Sun 12/78:45 pmKIX - SEA
1 stop18h 24mAlaska Airlines
Deal found 11/12$557
This Kiwi.com deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:55 pmSEA - KIX
1 stop31h 50mAlaska Airlines
Wed 12/38:45 pmKIX - SEA
1 stop20h 01mAlaska Airlines
Deal found 11/10$612
This Air Canada deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:05 amSEA - NRT
1 stop13h 15mAir Canada
Wed 12/176:15 pmNRT - SEA
1 stop21h 31mAir Canada
Deal found 11/11$613

Cheap flight deals from Seattle to Japan

Keep the following information in mind while searching for Seattle to Japan flight deals. Data was last updated November 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$378
(Alaska Airlines)

One-way from

$207
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$810

Good round-trip deal

$675 or less

Good one-way deal

$356 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Tokyo (TYO) flights.
Search Deals
From Seattle/Tacoma Intl to Japan
Search Deals
One-way flight from Seattle/Tacoma Intl to Japan
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Japan.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Japan.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Seattle to Japan that are best for you.

Fly from

Seattle

Fly to

Japan

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 11/27

5:55 pm-6:45 pm

1 stop31h 50m

Osaka Kansai Intl

Fri 12/5

8:45 pm-10:09 pm

1 stop18h 24m

$399

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Thu 11/27

5:55 pm-6:45 pm

1 stop31h 50m

Osaka Kansai Intl

Sun 12/7

8:45 pm-10:09 pm

1 stop18h 24m

$557

SeattleSapporo

SEA - CTS

SEACTS

Seattle/Tacoma Intl

Sat 1/17

3:45 pm-10:35 pm

1 stop13h 50m

Sapporo Chitose

Sun 2/1

2:35 pm-1:20 pm

2 stops15h 45m

$633

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Fri 1/16

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Mon 1/26

9:15 pm-1:20 pm

Nonstop9h 05m

$635

SeattleSapporo

SEA - CTS

SEACTS

Seattle/Tacoma Intl

Fri 2/6

3:45 pm-9:30 am

1 stop24h 45m

Sapporo Chitose

Sat 2/14

1:30 pm-1:20 pm

1 stop16h 50m

$637

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 1/24

11:43 am-8:55 pm

2 stops40h 12m

Kumamoto

Thu 2/19

11:55 am-9:55 am

2 stops15h 00m

$639

SeattleSapporo

SEA - CTS

SEACTS

Seattle/Tacoma Intl

Sat 1/17

3:45 pm-8:20 am

1 stop23h 35m

Sapporo Chitose

Sun 1/25

5:30 pm-1:20 pm

1 stop12h 50m

$639

SeattleSapporo

SEA - CTS

SEACTS

Seattle/Tacoma Intl

Mon 2/9

3:45 pm-10:35 pm

1 stop13h 50m

Sapporo Chitose

Sun 2/15

2:40 pm-1:20 pm

2 stops39h 40m

$642

SeattleSapporo

SEA - CTS

SEACTS

Seattle/Tacoma Intl

Tue 2/3

3:45 pm-11:05 pm

1 stop14h 20m

Sapporo Chitose

Sat 2/14

2:40 pm-1:20 pm

2 stops15h 40m

$642

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Sat 1/17

3:45 pm-7:15 pm

Nonstop10h 30m

Tokyo Haneda

Mon 1/26

9:05 pm-9:12 pm

2 stops17h 07m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Seattle to Japan?

Currently, January is the cheapest month in which you can book a flight from Seattle to Japan (average of $370). Flying from Seattle to Japan in June is currently the most expensive (average of $728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to JP?

Find hourly flight availability from Seattle to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

It’s typically best to fly out from Seattle to Japan in the evening. Doing so could potentially save you 26% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Japan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Japan flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated November 12, 2025.
Get a feel of what it's like to fly with ANA, Japan Airlines, and Asiana Airlines from Seattle to Japan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
ANA
8.4
Very good
1,003 reviews
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Japan Airlines
8.3
Very good
1,610 reviews
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Asiana Airlines
8.2
Very good
486 reviews
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Alaska Airlines
8.0
Very good
11,279 reviews
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.
Delta
7.9
Good
8,009 reviews
ANA
8.4
Very good
1,003 reviews

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.6

Reviews

1 / 20
10.0
Excellent

Julie,Sep 2025

CGK - HND

Flight attendants are nice, friendly and helpful. Highly recommend to flight with this airline.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Japan?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Japan. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Seattle to Japan?

    For as low as $635, Alaska Airlines can have you in Japan from Seattle in 10h 30m. The distance between Seattle and Japan is about 4788 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Seattle to Japan one-way?

    The cheapest airlines for a one-way flight from Seattle to Japan are Alaska Airlines ($207), Air Canada ($320), and Japan Airlines ($334).

  • What are the most popular routes from Seattle to Japan?

    When deciding which route to take from Seattle to Japan consider Seattle/Tacoma Intl - Tokyo Narita, Seattle/Tacoma Intl - Tokyo Haneda or Seattle/Tacoma Intl - Osaka Kansai Intl as they are the most popular.

  • Can I find deals for flights from Seattle to Japan that include hotel bookings?

    Yes. In addition to deals on Seattle to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Japan.

  • Can I find deals for business class flights from Seattle to Japan?

    Yes. Cheapflights offers flight deals from Seattle to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Japan?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Japan (average of $370). Flying from Seattle to Japan in June is currently the most expensive (average of $728). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Japan

Discover the top 10 airlines that operate flights from Seattle to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$1,091FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$359Average$938FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$470Average$864FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$547Average$777FlexibilityNo cancel feeOn-time76%
ANACheapest$619Average$878FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$677Average$969FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$684Average$1,046FlexibilityNo cancel feeOn-time79%
Alaska AirlinesCheapest$697Average$972FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$702Average$993FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$730Average$1,075FlexibilityNo cancel feeOn-time70%

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