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$353+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FUK
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
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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 August 7, 2025.

Round-trip from

$601
(oojo)

One-way from

$353
(oojo)

Popular in

December

Cheapest in

September

Average price

$955

Good round-trip deal

$757 or less

Good one-way deal

$396 or less
From Seattle/Tacoma Intl to Japan
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One-way flight from Seattle/Tacoma Intl to Japan
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Highest demand for flights based on searches. 8% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Japan.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Japan.
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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 August 7, 2025.

This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:00 amSEA - UKB
2 stops41h 40mKorean Air
Tue 9/306:40 pmUKB - SEA
1 stop32h 00mKorean Air
Deal found 8/5$601
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:00 amSEA - KIX
2 stops21h 00mKorean Air
Tue 9/3012:35 pmKIX - SEA
1 stop14h 05mKorean Air
Deal found 8/5$604
This CrystalTravel deal was found by Cheapflights users on 8/6. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:00 amSEA - KIX
1 stop15h 50mANA
Wed 10/85:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 8/6$612
This CrystalTravel deal was found by Cheapflights users on 8/5. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/54:30 pmSEA - KIX
1 stop13h 20mANA
Fri 10/105:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 8/5$615
This oojo deal was found by Cheapflights users on 8/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/95:05 pmSEA - KIX
2 stops35h 55mKorean Air
Tue 9/2312:35 pmKIX - SEA
1 stop14h 05mKorean Air
Deal found 8/6$616
This CrystalTravel deal was found by Cheapflights users on 8/7. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:30 amSEA - KIX
2 stops24h 50mANA
Fri 11/73:40 pmKIX - SEA
1 stop14h 40mANA
Deal found 8/7$619
This oojo deal was found by Cheapflights users on 8/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/712:50 pmSEA - UKB
1 stop29h 20mKorean Air
Sat 9/206:40 pmUKB - SEA
1 stop32h 00mKorean Air
Deal found 8/7$622
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:00 amSEA - KIX
2 stops21h 00mKorean Air
Fri 9/269:05 amKIX - SEA
1 stop17h 35mKorean Air
Deal found 8/5$624
This oojo deal was found by Cheapflights users on 8/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/712:50 pmSEA - KIX
1 stop16h 10mKorean Air
Sat 9/206:20 pmKIX - SEA
1 stop32h 20mKorean Air
Deal found 8/7$625
This Cheapflightsfares deal was found by Cheapflights users on 8/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:30 pmSEA - ITM
1 stop22h 55mANA
Tue 9/93:00 pmITM - SEA
1 stop15h 25mANA
Deal found 8/5$631
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:30 pmSEA - ITM
1 stop24h 35mANA
Fri 9/122:00 pmITM - SEA
1 stop16h 25mANA
Deal found 8/6$632
This Cheapflightsfares deal was found by Cheapflights users on 8/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:00 amSEA - KIX
1 stop15h 50mANA
Fri 9/124:10 pmKIX - SEA
1 stop14h 15mANA
Deal found 8/6$632

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 August 7, 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

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Mon 9/8

8:00 am-5:40 pm

2 stops41h 40m

Kobe

Tue 9/30

6:40 pm-10:40 am

1 stop32h 00m

$601

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Mon 9/8

8:00 am-9:00 pm

2 stops21h 00m

Osaka Kansai Intl

Tue 9/30

12:35 pm-10:40 am

1 stop14h 05m

$604

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 9/24

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Wed 10/8

5:30 pm-2:25 pm

1 stop12h 55m

$612

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 10/5

4:30 pm-9:50 pm

1 stop13h 20m

Osaka Kansai Intl

Fri 10/10

5:30 pm-2:25 pm

1 stop12h 55m

$615

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 9/9

5:05 pm-9:00 pm

2 stops35h 55m

Osaka Kansai Intl

Tue 9/23

12:35 pm-10:40 am

1 stop14h 05m

$616

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 10/28

5:30 am-10:20 pm

2 stops24h 50m

Osaka Kansai Intl

Fri 11/7

3:40 pm-1:20 pm

1 stop14h 40m

$619

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 9/19

8:00 am-9:00 pm

2 stops21h 00m

Osaka Kansai Intl

Fri 9/26

9:05 am-10:40 am

1 stop17h 35m

$624

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 9/7

12:50 pm-9:00 pm

1 stop16h 10m

Osaka Kansai Intl

Sat 9/20

6:20 pm-10:40 am

1 stop32h 20m

$625

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/3

4:30 pm-7:25 am

1 stop22h 55m

Osaka Itami

Tue 9/9

3:00 pm-2:25 pm

1 stop15h 25m

$631

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 9/3

4:30 pm-9:05 am

1 stop24h 35m

Osaka Itami

Fri 9/12

2:00 pm-2:25 pm

1 stop16h 25m

$632

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

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, February is the cheapest month in which you can book a flight from Seattle to Japan (average of $886). Flying from Seattle to Japan in December is currently the most expensive (average of $1,623). 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 August 7, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Japan as you normally would.

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 August 7, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, and Korean Air 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.
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
201 reviews
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,225 reviews
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,121 reviews
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
ANA
8.4
Very good
926 reviews
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,545 reviews
STARLUX Airlines
9.0
Wonderful
201 reviews

Overall

9.0

Comfort

9.0

Crew

9.3

Entertainment

8.9

Food

8.8

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

  • 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, February is the cheapest month in which you can book a flight from Seattle to Japan (average of $886). Flying from Seattle to Japan in December is currently the most expensive (average of $1,623). 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$1,221FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$359Average$939FlexibilityNo cancel feeOn-time85%
Asiana AirlinesCheapest$648Average$860FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$669Average$951FlexibilityNo cancel feeOn-time67%
ANACheapest$672Average$1,042FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$697Average$1,101FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$702Average$1,007FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$705Average$891FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$709Average$1,032FlexibilityNo cancel feeOn-time75%
China AirlinesCheapest$713Average$1,073FlexibilityNo cancel feeOn-time70%

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