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$304+ Cheap flights from Washington 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FUK
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Washington to Japan

Keep the following information in mind while searching for Washington to Japan flight deals. Data was last updated September 11, 2025.

Round-trip from

$572
(FlightHub)

One-way from

$304
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$803

Good round-trip deal

$726 or less

Good one-way deal

$407 or less
From Washington to Japan
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One-way flight from Washington to Japan
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Highest demand for flights based on searches. 8% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Washington to Japan.
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Price to beat on a one-way flight from Washington to Japan.
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Find flight deals from Washington to Japan

Cheapest flights from Washington to Japan
Explore the most affordable flight options available from Washington to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Thu 12/1810:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/11$572
This lol.travel deal was found by Cheapflights users on 9/9. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:15 pmSEA - KIX
1 stop29h 10mAir Canada
Tue 9/306:05 pmKIX - SEA
1 stop16h 31mAir Canada
Deal found 9/9$589
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/212:15 pmSEA - FUK
1 stop28h 00mAsiana Airlines
Thu 11/63:20 pmFUK - SEA
1 stop15h 35mAsiana Airlines
Deal found 9/11$592
This CrystalTravel deal was found by Cheapflights users on 9/9. 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 11/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/1710:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/9$593
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/812:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/179:00 amKIX - SEA
1 stop21h 55mAsiana Airlines
Deal found 9/11$599
This CrystalTravel deal was found by Cheapflights users on 9/9. 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 10/155:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 9/9$608
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Wed 11/268:25 pmKIX - SEA
1 stop34h 30mAsiana Airlines
Deal found 9/9$609
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Mon 11/109:00 amKIX - SEA
1 stop21h 55mAsiana Airlines
Deal found 9/10$613
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/112:10 amSEA - KIX
1 stop27h 45mAsiana Airlines
Tue 12/1610:50 amKIX - SEA
1 stop20h 05mAsiana Airlines
Deal found 9/11$619
This FlightHub deal was found by Cheapflights users on 9/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:30 pmSEA - CTS
1 stop13h 35mANA
Tue 9/302:45 pmCTS - SEA
2 stops15h 40mANA
Deal found 9/9$625
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:00 amSEA - KIX
1 stop15h 50mANA
Tue 10/75:30 pmKIX - SEA
1 stop12h 55mANA
Deal found 9/11$627
This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:15 pmSEA - KIX
1 stop35h 35mAsiana Airlines
Wed 10/17:10 pmKIX - SEA
1 stop33h 20mAsiana Airlines
Deal found 9/10$628

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 September 11, 2025.
Use the filters below to find and compare flights from Washington to Japan that are best for you.

Fly from

Washington

Fly to

Japan

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Tue 11/11

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Tue 11/25

9:00 am-1:55 pm

1 stop21h 55m

$599

SeattleFukuoka

SEA - FUK

SEAFUK

Seattle/Tacoma Intl

Tue 10/21

2:15 pm-10:15 am

1 stop28h 00m

Fukuoka

Tue 11/4

3:20 pm-1:55 pm

1 stop15h 35m

$641

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sat 11/8

12:10 am-9:40 am

1 stop16h 30m

Osaka Kansai Intl

Tue 11/18

5:00 pm-1:55 pm

1 stop13h 55m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 11/30

12:10 am-8:55 pm

1 stop27h 45m

Osaka Kansai Intl

Thu 12/18

9:00 am-1:55 pm

1 stop21h 55m

$649

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 9/24

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Fri 10/3

4:50 pm-9:53 pm

2 stops21h 03m

$650

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 9/28

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Tue 10/7

4:50 pm-9:53 pm

2 stops21h 03m

$650

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Tue 11/11

3:40 pm-8:10 am

1 stop23h 30m

Osaka Itami

Thu 11/20

3:00 pm-1:20 pm

1 stop15h 20m

$660

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Tue 3/3

3:45 pm-8:00 am

1 stop23h 15m

Kobe

Tue 3/17

7:05 am-2:20 pm

1 stop23h 15m

$664

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Sun 11/9

3:40 pm-8:00 am

1 stop23h 20m

Kobe

Mon 11/17

9:15 pm-1:20 pm

1 stop33h 05m

$664

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Sun 11/9

3:40 pm-8:00 am

1 stop23h 20m

Kobe

Fri 11/14

7:05 am-1:20 pm

1 stop23h 15m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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

Have a flexible travel schedule? Discover the best time to fly to Japan from Washington 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 Washington to Japan

What is the cheapest month to book a flight from State of Washington to Japan?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Japan (average of $902). Flying from State of Washington to Japan in December is currently the most expensive (average of $1,502). 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 WA to JP?

Find hourly flight availability from Washington 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 September 11, 2025.

When flying from State of Washington to Japan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • How long is the flight from State of Washington to Japan?

    For as low as $650, Asiana Airlines can have you in Japan from State of Washington in 15h 50m. Airlines will cover a distance of 5024 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 State of Washington to Japan one-way?

    One-way options have recently been found by users for as low as $322 on Asiana Airlines. Other airlines that offer cheap prices include Philippine Airlines from $334 and Air Canada from $339 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Japan?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Japan (average of $902). Flying from State of Washington to Japan in December is currently the most expensive (average of $1,502). 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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Alternative routes for Washington to Japan

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Top 10 airlines flying from Washington to Japan

Discover the top 10 airlines that operate flights from Washington 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$1,149FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$359Average$915FlexibilityNo cancel feeOn-time85%
Asiana AirlinesCheapest$610Average$823FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$669Average$923FlexibilityNo cancel feeOn-time67%
ANACheapest$681Average$943FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$681Average$1,044FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$697Average$1,146FlexibilityNo cancel feeOn-time79%
Alaska AirlinesCheapest$700Average$943FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$702Average$1,007FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$705Average$854FlexibilityNo cancel feeOn-time60%

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