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Kumamoto

$834+ Cheap flights from Seattle (SEA) to Kumamoto (KMJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KMJ
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheap flight deals from Seattle to Kumamoto

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kumamoto (KMJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 18, 2025.

Round-trip from

$834
(Japan Airlines)

Popular in

December

Cheapest in

September

Average price

$872
From Seattle/Tacoma Intl to Kumamoto
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Highest demand for flights based on searches. 20% potential increase in price ($267 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Kumamoto

Cheapest flights from Seattle to Kumamoto
Explore the most affordable flight options available from Seattle to Kumamoto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 18, 2025.

This Japan Airlines deal was found by Cheapflights users on 8/15. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/191:30 pmSEA - KMJ
1 stop27h 50mJapan Airlines
mié. 10/229:55 amKMJ - SEA
2 stops21h 00mJapan Airlines
Deal found 8/15$834
This Japan Airlines deal was found by Cheapflights users on 8/17. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/208:00 amSEA - KMJ
2 stops20h 45mJapan Airlines
jue. 10/239:55 amKMJ - SEA
1 stop16h 30mJapan Airlines
Deal found 8/17$843
This ANA deal was found by Cheapflights users on 8/16. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/194:30 pmSEA - KMJ
1 stop27h 05mANA
mié. 10/2212:20 pmKMJ - SEA
1 stop18h 05mANA
Deal found 8/16$846
This ANA deal was found by Cheapflights users on 8/17. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:00 amSEA - KMJ
2 stops21h 55mANA
jue. 10/2312:20 pmKMJ - SEA
2 stops18h 04mANA
Deal found 8/17$860
This China Airlines deal was found by Cheapflights users on 8/17. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/191:10 amSEA - KMJ
1 stop24h 30mChina Airlines
jue. 10/236:40 pmKMJ - SEA
1 stop16h 40mChina Airlines
Deal found 8/17$928
This STARLUX Airlines deal was found by Cheapflights users on 8/15. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/181:15 amSEA - KMJ
1 stop17h 30mSTARLUX Airlines
mié. 10/2211:55 amKMJ - SEA
1 stop20h 15mSTARLUX Airlines
Deal found 8/15$967
This STARLUX Airlines deal was found by Cheapflights users on 8/17. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/131:15 amSEA - KMJ
1 stop17h 30mSTARLUX Airlines
dom. 9/2111:55 amKMJ - SEA
1 stop20h 15mSTARLUX Airlines
Deal found 8/17$987

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 agosto 18, 2025.
Use the filters below to find and compare flights from Seattle to Kumamoto that are best for you.

Fly from

Seattle

Fly to

Kumamoto

Route

Depart

Return

Price

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

dom. 10/19

1:30 pm-9:20 am

1 stop27h 50m

Kumamoto

mié. 10/22

9:55 am-2:55 pm

2 stops21h 00m

$834

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

lun. 10/20

8:00 am-8:45 pm

2 stops20h 45m

Kumamoto

jue. 10/23

9:55 am-10:25 am

1 stop16h 30m

$843

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

lun. 10/20

4:30 pm-9:05 am

1 stop24h 35m

Kumamoto

jue. 10/23

12:20 pm-2:25 pm

1 stop18h 05m

$846

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

dom. 10/19

4:30 pm-11:35 am

1 stop27h 05m

Kumamoto

mié. 10/22

1:10 pm-2:25 pm

1 stop17h 15m

$846

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

dom. 10/19

1:10 am-5:40 pm

1 stop24h 30m

Kumamoto

jue. 10/23

6:40 pm-7:20 pm

1 stop16h 40m

$928

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

sáb. 10/18

1:15 am-10:45 am

1 stop17h 30m

Kumamoto

mié. 10/22

11:55 am-4:10 pm

1 stop20h 15m

$967

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Best time to book a flight from Seattle to Kumamoto

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

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kumamoto. 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 Seattle to Kumamoto?

    There are many flights that can get you from Seattle to Kumamoto in 24h 35m. Fly via Japan Airlines or ANA to get the fastest option. Airlines will cover a distance of 5276 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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.

See more FAQs

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