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$354+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FUK
Jun 18 — Jun 251
Wed 6/18
Wed 6/25
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 June 13, 2025.

Round-trip from

$669
(Air Canada)

One-way from

$354
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$1,237

Good round-trip deal

$827 or less

Good one-way deal

$482 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 ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 13, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:30 amSEA - KIX
1 stop18h 55mAir Canada
Thu 11/67:10 pmKIX - SEA
1 stop19h 56mAir Canada
Deal found 6/12$669
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/317:40 pmPDX - KIX
1 stop28h 45mAir Canada
Sat 9/136:05 pmKIX - PDX
2 stops36h 37mAir Canada
Deal found 6/12$683
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:30 amPDX - KIX
1 stop17h 20mANA
Tue 9/306:45 amKIX - PDX
2 stops23h 57mANA
Deal found 6/12$704
This Trip.com deal was found by Cheapflights users on 6/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1412:50 pmSEA - UKB
1 stop29h 10mKorean Air
Tue 9/2311:00 amUKB - SEA
1 stop15h 40mKorean Air
Deal found 6/13$705
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:45 amPDX - KIX
1 stop15h 05mUnited Airlines
Wed 9/104:50 pmKIX - PDX
1 stop19h 47mUnited Airlines
Deal found 6/10$707
This Trip.com deal was found by Cheapflights users on 6/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:20 pmSEA - KIX
1 stop15h 40mKorean Air
Wed 9/1012:35 pmKIX - SEA
1 stop14h 05mKorean Air
Deal found 6/12$707
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:45 amPDX - KIX
1 stop15h 05mMultiple Airlines
Wed 9/108:25 amKIX - PDX
2 stops22h 17mMultiple Airlines
Deal found 6/10$709
This Gurufare deal was found by Cheapflights users on 6/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:14 amPDX - KIX
2 stops17h 46mKorean Air
Thu 9/1112:35 pmKIX - PDX
2 stops16h 44mKorean Air
Deal found 6/11$720
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Fri 9/511:35 pmSEA - KIX
1 stop22h 45mPhilippine Airlines
Sun 9/143:20 pmKIX - SEA
1 stop19h 55mPhilippine Airlines
Deal found 6/11$728
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:09 amPDX - KIX
1 stop18h 36mAlaska Airlines
Tue 11/188:45 pmKIX - PDX
1 stop25h 49mAlaska Airlines
Deal found 6/10$732
This oojo deal was found by Cheapflights users on 6/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1912:50 pmSEA - CTS
1 stop34h 30mKorean Air
Tue 10/282:00 pmCTS - SEA
1 stop36h 00mKorean Air
Deal found 6/11$741
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1312:45 pmSEA - KIX
1 stop16h 20mMultiple Airlines
Tue 7/2210:50 amKIX - SEA
1 stop19h 10mMultiple Airlines
Deal found 6/10$742

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 13, 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

Wed 10/15

5:30 am-4:25 pm

1 stop18h 55m

Osaka Kansai Intl

Thu 11/6

7:10 pm-10:06 pm

1 stop19h 56m

$669

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Sun 8/31

7:40 pm-4:25 pm

1 stop28h 45m

Osaka Kansai Intl

Sat 9/13

6:05 pm-2:42 pm

2 stops36h 37m

$683

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Wed 9/3

7:45 am-2:50 pm

1 stop15h 05m

Osaka Kansai Intl

Tue 9/16

6:45 am-2:42 pm

2 stops23h 57m

$704

SeattleKobe

SEA - UKB

SEAUKB

Seattle/Tacoma Intl

Sun 9/14

12:50 pm-10:00 am

1 stop29h 10m

Kobe

Tue 9/23

11:00 am-10:40 am

1 stop15h 40m

$705

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 8/26

7:45 am-2:50 pm

1 stop15h 05m

Osaka Kansai Intl

Wed 9/10

4:50 pm-8:37 pm

1 stop19h 47m

$707

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 8/31

1:20 pm-9:00 pm

1 stop15h 40m

Osaka Kansai Intl

Wed 9/10

12:35 pm-10:40 am

1 stop14h 05m

$707

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Tue 8/26

7:45 am-2:50 pm

1 stop15h 05m

Osaka Kansai Intl

Wed 9/10

8:25 am-2:42 pm

2 stops22h 17m

$709

PortlandOsaka

PDX - KIX

PDXKIX

Portland

Wed 8/27

11:14 am-9:00 pm

2 stops17h 46m

Osaka Kansai Intl

Thu 9/11

12:35 pm-1:19 pm

2 stops16h 44m

$720

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Fri 9/5

11:35 pm-2:20 pm

1 stop22h 45m

Osaka Kansai Intl

Sun 9/14

3:20 pm-7:15 pm

1 stop19h 55m

$728

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

Sun 7/13

12:45 pm-9:05 pm

1 stop16h 20m

Osaka Kansai Intl

Tue 7/22

10:50 am-2:00 pm

1 stop19h 10m

$742

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 $871). Flying from State of Washington to Japan in December is currently the most expensive (average of $1,625). 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 13, 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.

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Japan ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Japan when rainfall is around 2.0 in.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 June 13, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air and Korean Air from Washington to Japan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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
9.1
Wonderful
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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
1,202 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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
1,091 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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
1,490 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Food

8.8

Comfort

9.0

Crew

9.3

Entertainment

8.9

Overall

9.1

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 Washington to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 $354 on ANA. Other airlines that offer cheap prices include Korean Air from $359 and United Airlines from $365 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 $871). Flying from State of Washington to Japan in December is currently the most expensive (average of $1,625). 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$1,251FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$359Average$1,127FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$652Average$987FlexibilityNo cancel feeOn-time75%
Asiana AirlinesCheapest$670Average$898FlexibilityNo cancel feeOn-time76%
ANACheapest$672Average$1,089FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$702Average$1,017FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$705Average$896FlexibilityNo cancel feeOn-time60%
China AirlinesCheapest$713Average$1,075FlexibilityNo cancel feeOn-time70%
China EasternCheapest$719Average$756FlexibilityNo cancel feeOn-time62%
Japan AirlinesCheapest$720Average$1,221FlexibilityNo cancel feeOn-time79%

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