Cheap flights from Seoul to Kumamoto

Seoul
SEL
Kumamoto
KMJ

Flight deals from Seoul to Kumamoto

Below you can see the best deals on flights Seoul — Kumamoto for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 16 September, from $74.

Top 10 cheap flights from Seoul to Kumamoto

7C
ZE
$ 74

Seoul — Kumamoto

19:55—13:50
16 Sep 2026
17 h 55 m
1 stop
TW
ZE
$ 75

Seoul — Kumamoto

18:50—13:50
15 Sep 2026
19 h
1 stop
TW
ZE
$ 75

Seoul — Kumamoto

14:50—13:50
15 Sep 2026
23 h
1 stop
TW
ZE
$ 77

Seoul — Kumamoto

18:50—13:50
16 Sep 2026
19 h
1 stop
TW
ZE
$ 77

Seoul — Kumamoto

18:50—13:50
8 Sep 2026
19 h
1 stop
TW
ZE
$ 77

Seoul — Kumamoto

18:50—13:50
17 Sep 2026
19 h
1 stop
TW
ZE
$ 77

Seoul — Kumamoto

18:50—13:50
9 Sep 2026
19 h
1 stop
7C
ZE
$ 78

Seoul — Kumamoto

19:55—13:50
9 Sep 2026
17 h 55 m
1 stop
7C
ZE
$ 80

Seoul — Kumamoto

19:55—13:50
2 Sep 2026
17 h 55 m
1 stop
7C
ZE
$ 80

Seoul — Kumamoto

19:55—13:50
17 Sep 2026
17 h 55 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Seoul — Kumamoto flight

Looking for cheap flights from Seoul to Kumamoto? Compare fares from different airlines, check the flight schedule and travel time — and book your Seoul — Kumamoto ticket online at the best price.

The route has direct flights — around 44 flights per week, flights are operated by Korean Air, T'way Air, Asiana Airlines, Delta, a nonstop flight takes about 1 h 30 min, the distance between the cities is around 626 km.

Planning your trip? You may find our Kumamoto travel guide, how to get from the airport into town and Kumamoto weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $74Min. price
SeptemberCheapest
MayPeak season
YesDirect flights
626 kmDistance
1 h 30 minTravel time
4Airlines
44 / wkFlights

Flight schedule from Seoul to Kumamoto

The table shows direct flights from Seoul to Kumamoto on the selected date. The flight takes approximately 1 h 30 min. Regular flights are operated by Korean Air, T'way Air, Asiana Airlines and Delta. Departures from Incheon International Airport and Gimpo International Airport airports, arrivals at Kumamoto Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 25 Aug 2026

Flight ticket prices by day: Seoul — Kumamoto

Below is a calendar of the lowest flight ticket prices for Seoul — Kumamoto by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $74 in September, and the most expensive are around $313 in May. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seoul to Kumamoto by month. Tickets are usually cheapest in October (around $86) and priciest in April (about $120) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$113highMay$118highSep$89low
Feb$115highJun$101mediumOct$86low
Mar$118highJul$98mediumNov$91low
Apr$120highAug$115highDec$100medium

Some values are estimated based on seasonality.

When to fly

Weather in Kumamoto: it is warmest in August (up to 31 °C on average) and coolest in January (around 10 °C). The driest month is January.

Tickets are usually cheapest in September and most expensive in May. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Kumamoto

Dry and wet days · Kumamoto

Wind speed and direction · Kumamoto

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How to get the best deal on a Seoul — Kumamoto ticket

  • Book ahead: fares for Seoul — Kumamoto are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seoul is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Kumamoto is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seoul — Kumamoto route are operated by 4 airlines; Korean Air runs the most flights (around 46% of all flights). Compare carriers, flight shares and schedules below.

  • Korean AirKE
    7x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight ICN → KMJ7x/week
      Duration
      1h 31m
      Days
      MTWTFSS
    45.5%Open →
  • T'way AirTW
    5x/week
    WebsiteFleet: 3810M pax/year
    • Direct flight ICN → KMJ5x/week
      Duration
      1h 30m
      Days
      MTWTFSS
    31.8%Open →
  • Asiana AirlinesOZ
    3x/week
    WebsiteFleet: 6916M pax/year
    • Direct flight ICN → KMJ3x/week
    20.5%Open →
  • DeltaDL
    1x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight ICN → KMJ1x/week
    2.3%Open →

Cities and airports on the Seoul — Kumamoto route

Flights Seoul — Kumamoto depart from Incheon International Airport and Gimpo International Airport and arrive at Kumamoto Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seoul

SEL
Korea, Republic Of
About the cityHow to get thereWeatherAll about the country Korea, Republic Of
Arrival

Kumamoto

KMJ
Japan
About the cityHow to get thereWeatherAll about the country Japan
Departure airports
Arrival airports

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Frequently asked questions about the Seoul — Kumamoto flight

How long is the flight from Seoul to Kumamoto?

A nonstop Seoul — Kumamoto flight takes about 1 h 30 min — the distance between the cities is around 626 km.

How far is it from Seoul to Kumamoto?

The distance from Seoul to Kumamoto is about 626 km, which a nonstop flight covers in around 1 h 30 min.

Are there direct flights from Seoul to Kumamoto?

Yes, there are nonstop flights Seoul — Kumamoto — around 44 flights per week.

Which airlines fly from Seoul to Kumamoto?

Airlines operating Seoul — Kumamoto include Korean Air, T'way Air, Asiana Airlines, Delta. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seoul — Kumamoto flights use?

Flights from Seoul depart from Incheon International Airport, Gimpo International Airport, and arrive at Kumamoto Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seoul to Kumamoto?

The price of a Seoul — Kumamoto ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in May. Tickets typically cost between $74 and $313. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seoul — Kumamoto?

Flights Seoul — Kumamoto are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seoul to Kumamoto?

To catch a low fare Seoul — Kumamoto, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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