Cheap flights from Kumamoto to Seoul

Kumamoto
KMJ
Seoul
SEL

Flight deals from Kumamoto to Seoul

Below you can see the best deals on flights Kumamoto — Seoul 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 9 September, from $120.

Top 10 cheap flights from Kumamoto to Seoul

ZE
7C
$ 120

Kumamoto — Seoul

14:50—08:15
9 Sep 2026
17 h 25 m
1 stop
ZE
TW
$ 122

Kumamoto — Seoul

14:50—07:40
9 Sep 2026
16 h 50 m
1 stop
ZE
TW
$ 125

Kumamoto — Seoul

14:50—07:40
2 Sep 2026
16 h 50 m
1 stop
ZE
TW
$ 125

Kumamoto — Seoul

14:50—07:40
29 Aug 2026
16 h 50 m
1 stop
ZE
7C
$ 127

Kumamoto — Seoul

14:50—08:15
2 Sep 2026
17 h 25 m
1 stop
ZE
TW
$ 128

Kumamoto — Seoul

14:50—07:40
22 Aug 2026
16 h 50 m
1 stop
ZE
TW
$ 129

Kumamoto — Seoul

14:50—07:40
3 Sep 2026
16 h 50 m
1 stop
ZE
TW
$ 129

Kumamoto — Seoul

14:50—07:40
10 Sep 2026
16 h 50 m
1 stop
ZE
TW
$ 129

Kumamoto — Seoul

14:50—07:40
8 Sep 2026
16 h 50 m
1 stop
ZE
TW
$ 129

Kumamoto — Seoul

14:50—09:35
7 Sep 2026
18 h 45 m
1 stop

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

When is the best time to book a flight from Kumamoto to Seoul?

The price of a flight from Kumamoto to Seoul changes depending on how far ahead you book. For the best chance of a lower fare, book around 30 days before departure, when the average ticket costs about $655. Fares also tend to climb as the departure date gets closer.

About the Kumamoto — Seoul flight

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

The route has direct flights — around 43 flights per week, flights are operated by Korean Air, T'way Air, Asiana Airlines, Delta, a nonstop flight takes about 1 h 35 min, the distance between the cities is around 626 km.

Planning your trip? You may find our Seoul travel guide, how to get from the airport into town and Seoul 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 $120Min. price
SeptemberCheapest
NovemberPeak season
YesDirect flights
626 kmDistance
1 h 35 minTravel time
4Airlines
43 / wkFlights

Flight schedule from Kumamoto to Seoul

The table shows direct flights from Kumamoto to Seoul on the selected date. The flight takes approximately 1 h 35 min. Regular flights are operated by Korean Air, T'way Air, Asiana Airlines and Delta. Departures from Kumamoto Airport airports, arrivals at Incheon International Airport and Gimpo International 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: 15 Aug 2026

Flight ticket prices by day: Kumamoto — Seoul

Below is a calendar of the lowest flight ticket prices for Kumamoto — Seoul by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $120 in September, and the most expensive are around $248 in November. 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 Kumamoto to Seoul by month. Tickets are usually cheapest in September (around $96) and priciest in May (about $192) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$120mediumMay$192highSep$96low
Feb$138mediumJun$108lowOct$114low
Mar$144mediumJul$180highNov$120medium
Apr$168highAug$192highDec$156high

Some values are estimated based on seasonality.

When to fly

Weather in Seoul: it is warmest in August (up to 29 °C on average) and coolest in January (around 2 °C). The driest month is January.

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

Temperature · Seoul

Dry and wet days · Seoul

Wind speed and direction · Seoul

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

  • Book ahead: fares for Kumamoto — Seoul 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.
  • The cheapest month to fly to Seoul 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 Kumamoto — Seoul route are operated by 4 airlines; Korean Air runs the most flights (around 47% of all flights). Compare carriers, flight shares and schedules below.

  • Korean AirKE
    7x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight KMJ → ICN7x/week
      Duration
      1h 47m
      Days
      MTWTFSS
    46.5%Open →
  • T'way AirTW
    4x/week
    WebsiteFleet: 3810M pax/year
    • Direct flight KMJ → ICN4x/week
      Duration
      1h 35m
      Days
      MTWTFSS
    30.2%Open →
  • Asiana AirlinesOZ
    3x/week
    WebsiteFleet: 6916M pax/year
    • Direct flight KMJ → ICN3x/week
    20.9%Open →
  • DeltaDL
    1x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight KMJ → ICN1x/week
    2.3%Open →

Cities and airports on the Kumamoto — Seoul route

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

Departure

Kumamoto

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

Seoul

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

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Frequently asked questions about the Kumamoto — Seoul flight

How long is the flight from Kumamoto to Seoul?

A nonstop Kumamoto — Seoul flight takes about 1 h 35 min — the distance between the cities is around 626 km.

How far is it from Kumamoto to Seoul?

The distance from Kumamoto to Seoul is about 626 km, which a nonstop flight covers in around 1 h 35 min.

Are there direct flights from Kumamoto to Seoul?

Yes, there are nonstop flights Kumamoto — Seoul — around 43 flights per week.

Which airlines fly from Kumamoto to Seoul?

Airlines operating Kumamoto — Seoul 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 Kumamoto — Seoul flights use?

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

How much is a ticket from Kumamoto to Seoul?

The price of a Kumamoto — Seoul ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in November. Tickets typically cost between $120 and $248. Check the current lowest fare and low-price calendar on this page.

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

Flights Kumamoto — Seoul 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 Kumamoto to Seoul?

To catch a low fare Kumamoto — Seoul, 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.

Where else you can fly from Kumamoto

See all
TokyoOsakaTaipeiOkinawaNagoyaKaohsiungBusanShirahamaTottoriCheongjuToyookaMatsumotoShanghaiYamagataKomatsu

Where else you can fly from Seoul

See all
Jeju CityTokyoOsakaShanghaiBusanHong KongFukuokaBangkokQingdaoTaipeiBeijingDa NangHo Chi Minh CitySingaporeHanoiNagoyaNha TrangUlaanbaatarManilaLos AngelesSapporoCebu CityPhu QuocKuala LumpurDenpasarOkinawaHagatnaGuangzhouDalianYanjiJakartaSeattleNew York CityShenzhenMacauYantaiTashkentSan FranciscoShenyangKaohsiung

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