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Kumamoto

$459+ Cheap flights from Washington to Kumamoto (KMJ)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KMJ
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Washington to Kumamoto

Keep the following information in mind while searching for Washington to Kumamoto flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$962
(Gurufare)

One-way from

$459
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Kumamoto flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kumamoto flights.
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From Washington to Kumamoto
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One-way flight from Washington to Kumamoto
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Find flight deals from Washington to Kumamoto

Cheapest flights from Washington to Kumamoto
Explore the most affordable flight options available from Washington to Kumamoto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This KAYAK deal was found by Cheapflights users on 4/30. 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 10/175:30 amPDX - KMJ
2 stops36h 25mANA
Wed 10/2212:20 pmKMJ - PDX
2 stops18h 23mANA
Deal found 4/30$933
This Gotogate deal was found by Cheapflights users on 4/30. 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 6/142:15 pmSEA - KMJ
1 stop30h 45mAsiana Airlines
Sat 6/212:00 pmKMJ - SEA
1 stop14h 30mAsiana Airlines
Deal found 4/30$1,253
This Gotogate deal was found by Cheapflights users on 4/30. 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 6/144:30 pmSEA - KMJ
1 stop25h 25mANA
Sat 6/218:35 pmKMJ - SEA
1 stop33h 50mANA
Deal found 4/30$1,355
This Gotogate deal was found by Cheapflights users on 4/30. 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.
Fri 6/131:15 amSEA - KMJ
1 stop17h 30mSTARLUX Airlines
Sat 6/2111:55 amKMJ - SEA
1 stop20h 15mSTARLUX Airlines
Deal found 4/30$1,399
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/142:15 pmSEA - KMJ
1 stop30h 45mMultiple Airlines
Sat 6/2110:25 amKMJ - SEA
3 stops38h 56mMultiple Airlines
Deal found 4/30$1,445

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to Kumamoto 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 May 1, 2025.
Use the filters below to find and compare flights from Washington to Kumamoto that are best for you.

Fly from

Washington

Fly to

Kumamoto

Route

Depart

Return

Price

PortlandKumamoto

PDX - KMJ

PDXKMJ

Portland

Fri 10/17

5:30 am-9:55 am

2 stops36h 25m

Kumamoto

Wed 10/22

12:20 pm-2:43 pm

2 stops18h 23m

$933

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

2:15 pm-1:00 pm

1 stop30h 45m

Kumamoto

Sat 6/21

2:00 pm-12:30 pm

1 stop14h 30m

$1,253

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

4:30 pm-9:55 am

1 stop25h 25m

Kumamoto

Sat 6/21

8:35 pm-2:25 pm

1 stop33h 50m

$1,355

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Fri 6/13

1:15 am-10:45 am

1 stop17h 30m

Kumamoto

Sat 6/21

11:55 am-4:10 pm

1 stop20h 15m

$1,399

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

2:15 pm-1:00 pm

1 stop30h 45m

Kumamoto

Sat 6/21

10:25 am-9:21 am

3 stops38h 56m

$1,445

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

2:15 pm-1:00 pm

1 stop30h 45m

$667

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Fri 6/13

1:15 am-10:45 am

1 stop17h 30m

$835

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Fri 6/27

7:00 am-7:20 pm

2 stops20h 20m

$845

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

1:35 pm-7:20 pm

2 stops37h 45m

$917

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Sat 6/14

1:45 pm-12:00 pm

3 stops30h 15m

$1,255

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 11 results
1
2

Best time to book a flight from Washington to Kumamoto

Have a flexible travel schedule? Discover the best time to fly to Kumamoto 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 Kumamoto

Rainfall in Kumamoto by month

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

In terms of precipitation, rainfall in Kumamoto ranges from 2.0 - 14.2 inches per month. June is typically the wettest month, when rainfall can reach 14.2 in. December is typically the driest time to visit Kumamoto when rainfall is around 2.0 in.

Temperature in Kumamoto by month

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

If weather is an important factor for your trip to Kumamoto, 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 41.0 F).

Reviews of airlines servicing Kumamoto

Get insights into the airlines that provide service to Kumamoto. 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 Kumamoto. Reviews last updated May 1, 2025.
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
ANA
8.3
Very good
852 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Asiana Airlines
8.2
Very good
442 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Delta
8.0
Very good
7,934 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Food

8.9

Overall

9.1

Entertainment

9.0

Crew

9.3

Comfort

9.0

Boarding

9.0

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

Related info for your journey

Find useful and relevant information for your journey from Washington to Kumamoto. 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 into for flights to Kumamoto from Washington?

    Kumamoto (KMJ), located 9.7 mi from the city center, is the airport you fly into when you book flights from Washington to Kumamoto.

  • What are the cheapest airlines to fly from State of Washington to Kumamoto one-way?

    The cheapest airline one-way is Japan Airlines, with whom users have recently found tickets for as low as $577. However, be on the lookout for offers from Asiana Airlines and Delta, as they are both options that can get you from State of Washington to Kumamoto for a low price.

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

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

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

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

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

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

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