$74 Cheap Flights from Seoul (ICN) to Kumamoto (KMJ)

View $74 flight on Tue, Mar 17, 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)

Cheap Flights from Seoul to Kumamoto (ICN-KMJ)

Prices were available within the past 7 days and start at $74 for one-way flights and $159 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Thu, May 14 - Thu, May 21
ICN
Seoul
KMJ
Kumamoto
$159 Roundtrip, found 3 days ago
$159
Roundtrip
found 3 days ago
Select Korean Air flight, departing Thu, May 14 from Seoul to Kumamoto, returning Thu, May 21, priced at $159 found 3 days ago
T'way Air with baggage
Wed, Jun 17 - Sat, Jun 20
ICN
Seoul
KMJ
Kumamoto
$164 Roundtrip, found 2 days ago
$164
Roundtrip
found 2 days ago
Select T'way Air with baggage flight, departing Wed, Jun 17 from Seoul to Kumamoto, returning Sat, Jun 20, priced at $164 found 2 days ago
T'Way Air
Wed, Dec 10 - Thu, Dec 11
ICN
Seoul
KMJ
Kumamoto
$167 Roundtrip, found 4 days ago
$167
Roundtrip
found 4 days ago
Select T'Way Air flight, departing Wed, Dec 10 from Seoul to Kumamoto, returning Thu, Dec 11, priced at $167 found 4 days ago
T'way Air with baggage
Wed, Mar 4 - Wed, Mar 11
ICN
Seoul
KMJ
Kumamoto
$171 Roundtrip, found 2 days ago
$171
Roundtrip
found 2 days ago
Select T'way Air with baggage flight, departing Wed, Mar 4 from Seoul to Kumamoto, returning Wed, Mar 11, priced at $171 found 2 days ago
T'way Air with baggage
Tue, Mar 3 - Tue, Mar 10
ICN
Seoul
KMJ
Kumamoto
$185 Roundtrip, found 2 days ago
$185
Roundtrip
found 2 days ago
Select T'way Air with baggage flight, departing Tue, Mar 3 from Seoul to Kumamoto, returning Tue, Mar 10, priced at $185 found 2 days ago
T'Way Air
Tue, Dec 9 - Thu, Dec 11
ICN
Seoul
KMJ
Kumamoto
$188 Roundtrip, found 4 days ago
$188
Roundtrip
found 4 days ago
Select T'Way Air flight, departing Tue, Dec 9 from Seoul to Kumamoto, returning Thu, Dec 11, priced at $188 found 4 days ago
T'way Air with baggage
Tue, Jul 14 - Wed, Aug 5
ICN
Seoul
KMJ
Kumamoto
$190 Roundtrip, found 6 days ago
$190
Roundtrip
found 6 days ago
Select T'way Air with baggage flight, departing Tue, Jul 14 from Seoul to Kumamoto, returning Wed, Aug 5, priced at $190 found 6 days ago
T'way Air with baggage
Wed, Jul 15 - Wed, Aug 5
ICN
Seoul
KMJ
Kumamoto
$192 Roundtrip, found 2 hours ago
$192
Roundtrip
found 2 hours ago
Select T'way Air with baggage flight, departing Wed, Jul 15 from Seoul to Kumamoto, returning Wed, Aug 5, priced at $192 found 2 hours ago
T'way Air with baggage
Wed, Jul 15 - Wed, Aug 5
ICN
Seoul
KMJ
Kumamoto
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago
Select T'way Air with baggage flight, departing Wed, Jul 15 from Seoul to Kumamoto, returning Wed, Aug 5, priced at $197 found 6 days ago
All Nippon Airways
Mon, Dec 22 - Wed, Dec 24
ICN
Seoul
KMJ
Kumamoto
$397 Roundtrip, found 2 days ago
$397
Roundtrip
found 2 days ago
Select All Nippon Airways flight, departing Mon, Dec 22 from Seoul to Kumamoto, returning Wed, Dec 24, priced at $397 found 2 days ago

Alternative airports near Kumamoto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kumamoto Airport KMJ. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $398
KMJ
Kumamoto Airport
CheapestClosest
Average driving time to city center20 min
Flights from $398
Flights from Seoul (ICN) to Kumamoto (KMJ)
Origin airport
Incheon Intl.
Destination airport
Kumamoto
Airlines serving
All Nippon Airways, T'way Air with baggage
Roundtrip price
$159
Distance
405 mi
Average flight time
1 hour 32 mins

Seoul to Kumamoto Flights

The cheapest times to fly from Seoul to Kumamoto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Kumamoto are during the month of May. You can find some of the cheapest flights from Seoul to Kumamoto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Kumamoto

Sunday is one of the best days to book for cheap flights from Seoul to Kumamoto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seoul to Kumamoto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Kumamoto in 2026. You can also book with separate airlines for your outbound and return journeys, from $74 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Kumamoto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Kumamoto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) cost?
Grab a cheap one-way flight from $74 or cheap return flight from $159 from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
The cheapest month to fly from ICN to KMJ is May, when demand is low. Off-peak season is generally when airlines offer better prices between these airports.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
Skip the layovers and travel straight from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) with 3 carriers, including:

  • Korean Air
  • TWay Air
  • Asiana Airlines

What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
Cheap flight tickets from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) are often available with low-cost carriers like T'Way Air and Asiana Airlines. Bear in mind that prices can change based on demand, travel dates and how early you book. With Expedia's search tool, you can easily filter your results to find an ICN to KMJ flight that fits your budget.
How many flights per day from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
With, on average, 2 nonstop flights that operate from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) every day, you'll be up in the air in no time.
What are the most popular departure times for flights from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
More passengers fly between ICN and KMJ at 7 AM than at any other time of day. Looking to skip the crowds? Pick a flight outside the busiest times and it's possible you'll save on your fare as well.
What day of the week has the most flights from ICN to KMJ?
Fly on a Monday if you're looking for the largest selection of flights from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ).
What is the earliest flight from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
Incheon Intl. Airport (ICN)'s first flight to Kumamoto Airport (KMJ) departs at approximately 7:50AM UTC+9. With a travel duration of 1h 35m, you'll arrive at around 9:25AM UTC+9.
How long does it take to fly from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
It takes approximately 1 hour and 34 minutes to travel the 410 mi from ICN to KMJ.
What is the best time to fly from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
To avoid potential delays on the Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Kumamoto from Incheon Intl. Airport (ICN)?
Incheon Intl. Airport (ICN) offers direct flights to Kumamoto. Here are some of the airports you can fly to without stops:

  • Fukuoka Airport (FUK)
  • Kumamoto Airport (KMJ)
  • Nagasaki Airport (NGS)

Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ) last-minute?
Last-minute bookings from ICN to KMJ are generally more expensive. For the lowest rates, start looking for flights early. That being said, if your travel plans are flexible, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book an ICN to KMJ flight and hotel package?
Opting for an ICN to KMJ flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our wide range of stays and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Kumamoto Airport (KMJ)?
In most cases, you're able to reschedule or cancel your ICN to KMJ flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like more details, head to our Customer Service portal.

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*Available to One Key members.