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$420+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FUK
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
1 adult, Economy
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Cheap 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 June 29, 2026.

This SmartFares deal was found by Cheapflights users on 6/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:10 pm
SEA
-
KIX
1 stop23h 00m
Philippine Airlines
Thu 10/2910:25 am
KIX
-
SEA
1 stop25h 10m
Philippine Airlines
Deal found 6/24$869
This KAYAK deal was found by Cheapflights users on 6/24. 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.
Fri 8/2811:10 pm
SEA
-
KIX
1 stop23h 00m
Philippine Airlines
Tue 9/83:15 pm
KIX
-
SEA
1 stop20h 50m
Philippine Airlines
Deal found 6/24$919
This Vliegwinkel deal was found by Cheapflights users on 6/27. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:00 am
SEA
-
KIX
1 stop33h 45m
Hainan Airlines
Fri 8/72:20 pm
KIX
-
SEA
1 stop34h 40m
Hainan Airlines
Deal found 6/27$928
This SmartFares deal was found by Cheapflights users on 6/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/811:00 am
SEA
-
KIX
1 stop33h 45m
Hainan Airlines
Fri 8/212:20 pm
KIX
-
SEA
1 stop34h 40m
Hainan Airlines
Deal found 6/25$937
This FlightHub deal was found by Cheapflights users on 6/27. 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.
Wed 9/1610:10 am
PDX
-
KIX
1 stop14h 15m
Air Canada
Mon 10/267:25 pm
KIX
-
PDX
2 stops35h 09m
Air Canada
Deal found 6/27$948
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Wed 8/1212:25 pm
SEA
-
OKA
1 stop37h 40m
Cathay Pacific
Mon 9/78:25 pm
OKA
-
SEA
1 stop29h 55m
Cathay Pacific
Deal found 6/28$950
This Air Canada deal was found by Cheapflights users on 6/26. 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 9/227:45 pm
PDX
-
KIX
1 stop28h 40m
Air Canada
Mon 10/56:00 pm
KIX
-
PDX
1 stop12h 51m
Air Canada
Deal found 6/26$951
This Justfly.com deal was found by Cheapflights users on 6/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:25 pm
SEA
-
KIX
1 stop26h 15m
Cathay Pacific
Mon 9/76:30 pm
KIX
-
SEA
1 stop31h 50m
Cathay Pacific
Deal found 6/24$954
This Justfly.com deal was found by Cheapflights users on 6/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:10 am
PDX
-
KIX
1 stop14h 15m
Air Canada
Thu 10/297:25 pm
KIX
-
PDX
1 stop15h 06m
Air Canada
Deal found 6/24$961
This Air Canada deal was found by Cheapflights users on 6/24. 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.
Mon 9/2810:10 am
PDX
-
KIX
1 stop14h 15m
Multiple Airlines
Fri 10/97:35 am
KIX
-
PDX
2 stops23h 16m
Multiple Airlines
Deal found 6/24$964
This Gotogate deal was found by Cheapflights users on 6/29. 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.
Sat 8/227:45 pm
PDX
-
KIX
1 stop28h 40m
Air Canada
Mon 9/76:00 pm
KIX
-
PDX
1 stop31h 31m
Air Canada
Deal found 6/29$966
This Air Canada deal was found by Cheapflights users on 6/28. 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.
Thu 8/2710:10 am
PDX
-
KIX
2 stops18h 40m
Multiple Airlines
Tue 9/86:00 pm
KIX
-
PDX
1 stop12h 46m
Multiple Airlines
Deal found 6/28$967

Find flight deals from Washington to Japan

Keep the following information in mind while searching for Washington to Japan flight deals. Data was last updated June 29, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$869
(SmartFares)

One-way from

$420
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$1,129

Good round-trip deal

$1,061 or less

Good one-way deal

$527 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 Washington to Japan
Search Deals
One-way flight from Washington to Japan
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Washington to Japan.
Search Deals
Price to beat on a one-way flight from Washington to Japan.
Search Deals

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 June 29, 2026.
Use the filters below to find and compare flights from Washington to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Wed 9/2

4:30 pm-10:45 pm

1 stop14h 15m

Okinawa Naha

Wed 10/7

7:50 am-12:56 pm

2 stops21h 06m

$1,073
Quickest round-trip

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Sun 8/23

11:55 am-2:20 pm

Nonstop10h 25m

Tokyo Haneda

Thu 9/24

4:20 pm-9:35 am

Nonstop9h 15m

$1,073

SeattleOsaka

SEA - ITM

SEAITM

Seattle/Tacoma Intl

Wed 8/26

4:30 pm-10:05 am

1 stop25h 35m

Osaka Itami

Wed 9/2

12:50 pm-2:25 pm

1 stop17h 35m

$1,077

SeattleTokyo

SEA - HND

SEAHND

Seattle/Tacoma Intl

Sun 8/16

7:00 am-1:55 pm

1 stop14h 55m

Tokyo Haneda

Wed 9/2

9:15 pm-2:25 pm

Nonstop9h 10m

$1,078

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Mon 8/17

4:30 pm-3:40 pm

1 stop31h 10m

Okinawa Naha

Wed 9/2

8:35 pm-2:25 pm

1 stop33h 50m

$1,078

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Wed 8/26

7:11 am-2:50 pm

1 stop15h 39m

Osaka Kansai Intl

Wed 9/2

3:50 pm-2:25 pm

1 stop14h 35m

$1,078

SeattleOkinawa

SEA - OKA

SEAOKA

Seattle/Tacoma Intl

Mon 8/17

7:11 am-10:45 pm

2 stops23h 34m

Okinawa Naha

Wed 9/2

10:55 am-6:29 pm

2 stops23h 34m

$1,084

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 8/30

7:00 am-2:50 pm

1 stop15h 50m

Osaka Kansai Intl

Fri 9/4

9:20 am-2:25 pm

1 stop21h 05m

$1,084

PortlandOsaka

PDX - ITM

PDXITM

Portland

Tue 9/1

7:03 am-5:35 pm

2 stops18h 32m

Osaka Itami

Wed 9/16

1:25 pm-4:50 pm

2 stops19h 25m

$1,091

SeattleTokyo

SEA - NRT

SEANRT

Seattle/Tacoma Intl

Wed 9/2

6:10 pm-3:55 pm

2 stops29h 45m

Tokyo Narita

Wed 9/30

6:30 pm-10:05 am

1 stop31h 35m

$1,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from State of Washington to Japan (average of $675). Flying from State of Washington to Japan in May is currently the most expensive (average of $1,119). 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 June 29, 2026.

It’s typically best to fly out from State of Washington to Japan in the afternoon. Doing so could potentially save you 9% on the flight price compared to flying at noon, which is usually more expensive.

How far ahead should I book a flight from State of Washington to Japan?

To ensure you get the cheapest price possible for a flight from State of Washington to Japan, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $1,073, Delta can have you in Japan from State of Washington in 10h 25m. Airlines will cover a distance of 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 State of Washington to Japan one-way?

    One-way options have recently been found by users for as low as $159 on Philippine Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $278 and Delta from $281 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, January is the cheapest month in which you can book a flight from State of Washington to Japan (average of $675). Flying from State of Washington to Japan in May is currently the most expensive (average of $1,119). 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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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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$317Average$381FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$370Average$691FlexibilityNo cancel feeOn-time75%
Asiana AirlinesCheapest$547Average$697FlexibilityNo cancel feeOn-time76%
Hawaiian AirlinesCheapest$586Average$905FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$589Average$848FlexibilityNo cancel feeOn-time67%
ANACheapest$613Average$828FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$626Average$813FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$627Average$913FlexibilityNo cancel feeOn-time79%
DeltaCheapest$642Average$1,052FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$643Average$996FlexibilityNo cancel feeOn-time69%

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