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Kumamoto

$1,030+ Cheap flights from Washington, D.C. (WAS) 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — KMJ
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Kumamoto

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 January 14, 2026.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,030
(KAYAK)

Popular in

April

Cheapest in

February

Average price

$1,072
Provider with most accurate pricing for Washington, D.C. (WAS)-Kumamoto flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Kumamoto flights.
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From Washington, D.C. (WAS) to Kumamoto
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($265 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Washington, D.C. to Kumamoto

Cheapest flights from Washington, D.C. to Kumamoto
Explore the most affordable flight options available from Washington, D.C. to Kumamoto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This KAYAK deal was found by Cheapflights users on 1/11. 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.
Sun 4/57:11 pm
IAD
-
KMJ
2 stops26h 34m
STARLUX Airlines
Tue 4/2111:55 am
KMJ
-
IAD
2 stops30h 45m
STARLUX Airlines
Deal found 1/11$1,030
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:27 pm
IAD
-
KMJ
2 stops26h 08m
STARLUX Airlines
Fri 3/611:45 am
KMJ
-
IAD
2 stops31h 55m
STARLUX Airlines
Deal found 1/13$1,042
This Expedia deal was found by Cheapflights users on 1/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:30 am
BWI
-
KMJ
2 stops36h 45m
ANA
Fri 3/612:35 pm
KMJ
-
BWI
2 stops23h 07m
ANA
Deal found 1/13$1,070
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:20 pm
IAD
-
KMJ
1 stop18h 35m
ANA
Fri 3/612:35 pm
KMJ
-
IAD
1 stop17h 05m
ANA
Deal found 1/13$1,110
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/512:15 pm
IAD
-
KMJ
1 stop19h 40m
ANA
Tue 4/218:10 am
KMJ
-
IAD
1 stop20h 30m
ANA
Deal found 1/13$1,131
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:59 am
DCA
-
KMJ
2 stops23h 56m
Multiple Airlines
Fri 3/610:00 am
KMJ
-
DCA
3 stops26h 35m
Multiple Airlines
Deal found 1/13$1,235
This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/279:00 am
IAD
-
KMJ
2 stops21h 55m
Multiple Airlines
Fri 3/610:00 am
KMJ
-
IAD
3 stops24h 26m
Multiple Airlines
Deal found 1/13$1,291
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:20 am
DCA
-
KMJ
2 stops25h 30m
Japan Airlines
Tue 4/213:25 pm
KMJ
-
DCA
2 stops19h 52m
Japan Airlines
Deal found 1/13$1,292
This Japan Airlines deal was found by Cheapflights users on 1/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:59 am
DCA
-
KMJ
2 stops22h 41m
Japan Airlines
Mon 2/210:40 am
KMJ
-
DCA
2 stops40h 04m
Japan Airlines
Deal found 1/11$1,907
This Japan Airlines deal was found by Cheapflights users on 1/13. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:04 pm
IAD
-
KMJ
2 stops49h 21m
Japan Airlines
Mon 2/28:15 pm
KMJ
-
IAD
2 stops58h 11m
Japan Airlines
Deal found 1/13$1,951
This Japan Airlines deal was found by Cheapflights users on 1/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/189:00 am
BWI
-
KMJ
2 stops38h 25m
Japan Airlines
Thu 1/2210:00 am
KMJ
-
BWI
2 stops27h 52m
Japan Airlines
Deal found 1/11$2,332
This Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:06 pm
BWI
-
KMJ
2 stops32h 24m
Delta
Thu 3/57:10 pm
KMJ
-
BWI
2 stops33h 46m
Delta
Deal found 1/12$4,887

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 January 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Kumamoto that are best for you.

Fly from

Washington, D.C.

Fly to

Kumamoto

Route

Depart

Return

Price

Washington, D.C.Kumamoto

IAD - KMJ

IADKMJ

Washington, D.C. Dulles Intl

Sun 4/5

7:11 pm-10:45 am

2 stops26h 34m

Kumamoto

Tue 4/21

11:55 am-5:40 am

2 stops30h 45m

$1,030

BaltimoreKumamoto

BWI - KMJ

BWIKMJ

Baltimore/Washington

Fri 2/27

6:30 am-9:15 am

2 stops36h 45m

Kumamoto

Fri 3/6

12:35 pm-9:42 pm

2 stops23h 07m

$1,070

Washington, D.C.Kumamoto

IAD - KMJ

IADKMJ

Washington, D.C. Dulles Intl

Fri 2/27

12:20 pm-8:55 pm

1 stop18h 35m

Kumamoto

Fri 3/6

12:35 pm-3:40 pm

1 stop17h 05m

$1,110

Washington, D.C.Kumamoto

IAD - KMJ

IADKMJ

Washington, D.C. Dulles Intl

Sun 4/5

12:15 pm-8:55 pm

1 stop19h 40m

Kumamoto

Tue 4/21

8:10 am-3:40 pm

1 stop20h 30m

$1,131

Washington, D.C.Kumamoto

DCA - KMJ

DCAKMJ

Washington, D.C. Reagan-National

Fri 2/27

6:59 am-8:55 pm

2 stops23h 56m

Kumamoto

Fri 3/6

10:00 am-10:35 pm

3 stops26h 35m

$1,235

Washington, D.C.Kumamoto

DCA - KMJ

DCAKMJ

Washington, D.C. Reagan-National

Sun 4/5

6:20 am-8:50 pm

2 stops25h 30m

Kumamoto

Tue 4/21

3:25 pm-10:17 pm

2 stops19h 52m

$1,292

Washington, D.C.Kumamoto

DCA - KMJ

DCAKMJ

Washington, D.C. Reagan-National

Thu 1/29

6:59 am-7:40 pm

2 stops22h 41m

Kumamoto

Mon 2/2

10:40 am-12:44 pm

2 stops40h 04m

$1,907

Washington, D.C.Kumamoto

IAD - KMJ

IADKMJ

Washington, D.C. Dulles Intl

Thu 1/29

6:04 pm-9:25 am

2 stops49h 21m

Kumamoto

Mon 2/2

8:15 pm-4:26 pm

2 stops58h 11m

$1,951

Washington, D.C.Kumamoto

IAD - KMJ

IADKMJ

Washington, D.C. Dulles Intl

Fri 2/27

9:45 am-11:35 am

3 stops35h 50m

Kumamoto

Fri 3/6

12:05 pm-8:26 pm

3 stops22h 21m

$2,106

BaltimoreKumamoto

BWI - KMJ

BWIKMJ

Baltimore/Washington

Thu 2/26

7:06 pm-5:30 pm

2 stops32h 24m

Kumamoto

Thu 3/5

7:10 pm-2:56 pm

2 stops33h 46m

$4,887

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 11 results
1
2
  • Most accurate provider: When it comes to deals on Washington, D.C.-Kumamoto flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Washington, D.C.-Kumamoto flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Washington, D.C.-Kumamoto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Kumamoto flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Kumamoto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Kumamoto

Have a flexible travel schedule? Discover the best time to fly to Kumamoto from Washington, D.C. 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, D.C. to Kumamoto
No data available for this route at this time. Please check back soon.

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 January 14, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Kumamoto, such as ANA. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
1,069 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!
ANA
8.4
Very good
1,069 reviews
ANA
8.4
Very good
1,069 reviews

Entertainment

7.9

Crew

8.7

Overall

8.4

Comfort

8.2

Food

7.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Lindsey,Jan 2026

CGK - HND

All of the flight attendants were very nice & attentive. The bathrooms were kept very clean. We have no complaints!

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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, D.C.?

    If you book a flight to Kumamoto from Washington, D.C., you will be flying to Kumamoto, which is the city’s only airport. Kumamoto (KMJ) is located 9.7 mi from the center of Kumamoto. There are 0 flights from Washington, D.C. to Kumamoto per day from 0 different airlines.

  • How long is the flight from Washington, D.C. to Kumamoto?

    A quick flight from Washington, D.C. to Kumamoto can take about 25h 30m. STARLUX Airlines provides one of the quickest options available for as low as $1,292. Airlines will cover a distance of 7165 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to Kumamoto?

    When deciding which route to take from Washington, D.C. to Kumamoto consider Washington, D.C. Reagan-National - Kumamoto, Washington, D.C. Dulles Intl - Kumamoto or Baltimore/Washington - Kumamoto as they are the most popular.

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

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

  • How can I find direct flights from Washington, D.C. to Kumamoto?

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

  • Can I find deals for business class flights from Washington, D.C. to Kumamoto?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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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