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Kumamoto

$746+ Cheap flights from Portland (PDX) 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KMJ
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
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Find flight deals from Portland to Kumamoto

Best flights from Portland to Kumamoto
Discover carefully curated flight deals from Portland to Kumamoto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 24, 2025.

This Japan Airlines deal was found by Cheapflights users on 11/22. 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 1/257:20 amPDX - KMJ
2 stops33h 05mJapan Airlines
Wed 1/282:15 pmKMJ - PDX
2 stops19h 35mJapan Airlines
Deal found 11/22$746

Cheap flight deals from Portland to Kumamoto

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 November 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$746
(Japan Airlines)

Popular in

November

Cheapest in

September

Average price

$1,279
Provider with most accurate pricing for Portland-Fukuoka flight deals.
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Provider most trusted by Cheapflights users for Portland-Fukuoka flights.
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From Portland to Kumamoto
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Highest demand for flights based on searches. 17% potential increase in price ($181 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 November 24, 2025.
Use the filters below to find and compare flights from Portland to Kumamoto that are best for you.

Fly from

Portland

Fly to

Kumamoto

Route

Depart

Return

Price

PortlandKumamoto

PDX - KMJ

PDXKMJ

Portland

Sun 1/25

7:20 am-9:25 am

2 stops33h 05m

Kumamoto

Wed 1/28

2:15 pm-4:50 pm

2 stops19h 35m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

Best time to book a flight from Portland to Kumamoto

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

What is the cheapest month to book a flight from Portland to Kumamoto?

Currently, July is the cheapest month in which you can book a flight from Portland to Kumamoto (average of $392). Flying from Portland to Kumamoto in June is currently the most expensive (average of $882). 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.

Related info for your journey

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

    Japan Airlines can get you from Portland to Kumamoto in just under 33h 05m. Your travel time can differ by up to . There are 5337 mi between Portland and Kumamoto.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

  • What is the cheapest month to book a flight from Portland to Kumamoto?

    Currently, July is the cheapest month in which you can book a flight from Portland to Kumamoto (average of $392). Flying from Portland to Kumamoto in June is currently the most expensive (average of $882). 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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