$81 Cheap Flights from Kumamoto (KMJ) to Seoul (ICN)

View $81 flight on Thu, Dec 18, 2025Opens in a new window

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

Cheap Flights from Kumamoto to Seoul (KMJ-ICN)

Prices were available within the past 7 days and start at $81 for one-way flights and $165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

T'Way Air
Wed, Dec 17 - Tue, Dec 30
KMJ
Kumamoto
ICN
Seoul
$165 Roundtrip, found 6 hours ago
$165
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Wed, Dec 17 from Kumamoto to Seoul, returning Tue, Dec 30, priced at $165 found 6 hours ago
T'Way Air
Wed, Nov 26 - Wed, Dec 10
KMJ
Kumamoto
ICN
Seoul
$169 Roundtrip, found 6 hours ago
$169
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Wed, Nov 26 from Kumamoto to Seoul, returning Wed, Dec 10, priced at $169 found 6 hours ago
T'Way Air
Wed, Dec 17 - Mon, Dec 29
KMJ
Kumamoto
ICN
Seoul
$172 Roundtrip, found 6 hours ago
$172
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Wed, Dec 17 from Kumamoto to Seoul, returning Mon, Dec 29, priced at $172 found 6 hours ago
T'Way Air
Thu, Dec 18 - Tue, Dec 30
KMJ
Kumamoto
ICN
Seoul
$175 Roundtrip, found 6 hours ago
$175
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Thu, Dec 18 from Kumamoto to Seoul, returning Tue, Dec 30, priced at $175 found 6 hours ago
T'Way Air
Wed, Dec 17 - Wed, Dec 31
KMJ
Kumamoto
ICN
Seoul
$178 Roundtrip, found 6 hours ago
$178
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Wed, Dec 17 from Kumamoto to Seoul, returning Wed, Dec 31, priced at $178 found 6 hours ago
T'Way Air
Wed, Nov 12 - Mon, Dec 1
KMJ
Kumamoto
ICN
Seoul
$182 Roundtrip, found 6 hours ago
$182
Roundtrip
found 6 hours ago
Select T'Way Air flight, departing Wed, Nov 12 from Kumamoto to Seoul, returning Mon, Dec 1, priced at $182 found 6 hours ago
T'way Air with baggage
Tue, Nov 4 - Wed, Nov 5
KMJ
Kumamoto
ICN
Seoul
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select T'way Air with baggage flight, departing Tue, Nov 4 from Kumamoto to Seoul, returning Wed, Nov 5, priced at $213 found 1 day ago
Korean Air
Wed, Nov 26 - Fri, Dec 12
KMJ
Kumamoto
ICN
Seoul
$219 Roundtrip, found 6 hours ago
$219
Roundtrip
found 6 hours ago
Select Korean Air flight, departing Wed, Nov 26 from Kumamoto to Seoul, returning Fri, Dec 12, priced at $219 found 6 hours ago
China Airlines
Sat, Nov 1 - Sun, Nov 9
KMJ
Kumamoto
ICN
Seoul
$1,230 Roundtrip, found 1 day ago
$1,230
Roundtrip
found 1 day ago
Select China Airlines flight, departing Sat, Nov 1 from Kumamoto to Seoul, returning Sun, Nov 9, priced at $1,230 found 1 day ago
All Nippon Airways
Wed, Nov 5 - Thu, Nov 6
KMJ
Kumamoto
ICN
Seoul
$1,491 Roundtrip, found 1 day ago
$1,491
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Wed, Nov 5 from Kumamoto to Seoul, returning Thu, Nov 6, priced at $1,491 found 1 day ago

Alternative airports near Seoul

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

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from $195
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from $195

Frequently asked questions

How much does a flight from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN) cost?
Get a cheap one-way flight from $81 or cheap return flight from $165 from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN) 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 Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Planning your getaway for December is a great way to save, as it's the cheapest month for flights between KMJ and ICN. You'll usually find the lowest fares during the off-season.
Which airlines fly direct from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Enjoy a seamless journey to Incheon Intl. Airport (ICN). 3 airlines offer direct flights from Kumamoto Airport (KMJ), including:

  • TWay Air
  • Korean Air
  • Asiana Airlines

What is the cheapest airline that flies from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
The cheapest airline to offer flights between Kumamoto Airport (KMJ) and Incheon Intl. Airport (ICN) can vary based on your travel dates. However, you'll usually find that low-cost carriers like T'Way Air and Asiana Airlines have some of the best prices available. Use Expedia's search tool to compare airlines in one place and find the right KMJ to ICN flight that suits your budget.
How many flights per day from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
With an average of 2 nonstop flights that operate from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN) every day, you'll be soaring through the skies in no time.
What are the most popular departure times for flights from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
More people fly between KMJ and ICN at 10 AM than at any other point in the day. Looking for a quieter experience? Consider flying outside peak hours and you're likely to save on your fare as well.
What day of the week has the most flights from KMJ to ICN?
Thursday has the most flights from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN). Consider taking off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Catch the earliest flight at around 10:25AM UTC+9, departing from Kumamoto Airport (KMJ). You'll be in the air for approximately 1h 40m, reaching Incheon Intl. Airport (ICN) at approximately 12:05PM UTC+9.
How long does it take to fly from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Flights from KMJ to ICN have an average travel time of 1 hour and 47 minutes. The total distance between the two is 410 mi.
What is the best time to fly from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Opt for a flight from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Seoul from Kumamoto Airport (KMJ)?
Incheon Intl. Airport (ICN) is the only airport in Seoul with direct flights from Kumamoto Airport (KMJ). Browse the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN) last-minute?
Last-minute fares from KMJ to ICN are typically more expensive. For the best rates, start searching for flights well in advance. That said, if you can play around with your travel dates, it's possible to score a cheap ticket right before your journey.
Is it cheaper to book a KMJ to ICN flight and hotel package?
You can save money by securing a KMJ to ICN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Kumamoto Airport (KMJ) to Incheon Intl. Airport (ICN)?
Usually, it's possible to reschedule or cancel your KMJ to ICN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Kumamoto
Destination airport
Incheon Intl.
Airlines serving
All Nippon Airways, China Airlines, Korean Air, T'Way Air, T'way Air with baggage
Roundtrip price
$164
Distance
405 mi
Average flight time
1 hour 42 mins

Book with confidence

Kumamoto to Seoul Flights

The cheapest times to fly from Kumamoto to Seoul

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 Kumamoto to Seoul are during the month of December. You can find some of the cheapest flights from Kumamoto to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kumamoto to Seoul

Sunday is one of the best days to book for cheap flights from Kumamoto to Seoul: 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 Kumamoto to Seoul

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 Kumamoto to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $81 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 Kumamoto to Seoul 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 Kumamoto to Seoul 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.

 

Kumamoto to Seoul Flights

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*Available to One Key members.