HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kumamoto

$1,697+ 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 6/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KMJ
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Kumamoto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$1,697
(KAYAK)
From Seattle/Tacoma Intl to Kumamoto
Search Deals

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 June 12, 2025.

This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:20 amSEA - KMJ
2 stops21h 35mANA
Sun 7/1312:15 pmKMJ - SEA
1 stop18h 10mANA
Deal found 6/12$1,697
This STARLUX Airlines 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/241:15 amSEA - KMJ
1 stop17h 30mSTARLUX Airlines
Sun 7/1311:55 amKMJ - SEA
1 stop20h 40mSTARLUX Airlines
Deal found 6/12$2,298

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 June 12, 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

Wed 6/25

7:20 am-8:55 pm

2 stops21h 35m

Kumamoto

Sun 7/13

12:15 pm-2:25 pm

1 stop18h 10m

$1,697

SeattleKumamoto

SEA - KMJ

SEAKMJ

Seattle/Tacoma Intl

Tue 6/24

1:15 am-10:45 am

1 stop17h 30m

Kumamoto

Sun 7/13

11:55 am-4:35 pm

1 stop20h 40m

$2,298

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle 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 June 12, 2025.
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Crew

9.3

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
177 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Crew

9.3

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.
ANA
8.3
Very good
882 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Overall

9.1

Food

8.8

Boarding

9.0

Comfort

9.0

Entertainment

8.9

Crew

9.3

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

  • 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.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Aso

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Kumamoto

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Kumamoto flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.