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Cheap Flights from Kumamoto to Seoul

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Deals from

Kumamoto

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Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Kumamoto to Seoul

Explore current cheapest deals departing from Kumamoto to Seoul

Round trip

Sort by: Cheapest

June 22 - June 23

Cheapest

Best

Earliest

KMJ - Seoul

$169

$161

Round trip

June 25 - June 27

KMJ - Seoul

$157

$168

Round trip

June 25 - June 28

KMJ - Seoul

$156

$169

Round trip

June 25 - June 30

KMJ - Seoul

$147

$169

Round trip

June 27 - June 28

KMJ - Seoul

$156

$173

Round trip

July 2 - July 6

KMJ - Seoul

$148

$173

Round trip

July 2 - July 3

KMJ - Seoul

$148

$173

Round trip

July 27 - August 8

KMJ - Seoul

$122

$173

Round trip

June 27 - June 30

KMJ - Seoul

$156

$174

Round trip

July 16 - July 19

KMJ - Seoul

$143

$174

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Kumamoto to Seoul

Most itineraries for cheap flights from Kumamoto to Seoul connect at least once, with only 11.5% of recent fares being non-stop. When flights do include connections, the typical number of stopovers is 1. This means you will likely encounter connecting flights when searching for routes between these two cities.

Fares from Kumamoto to Seoul typically range from $186–$424, with a median of $330. Right now, fares are significantly below the typical level. Currently, 12% of recent fares are classified as a good price, indicating that competitive deals are available. New deals show up several times a week, so keeping an eye on prices can be beneficial.

The cheapest time to fly from Kumamoto to Seoul is typically in September, with a median fare of $122. July also offers lower prices, with a median of $126. Another affordable option is October, where the median fare is $132. These months present the best opportunities for finding more budget-friendly travel.

A typical journey from Kumamoto to Seoul takes approximately 8h 10m, including connections. This duration accounts for the fact that most itineraries involve at least one stopover, reflecting the overall travel time you can expect for this route.

The distance between Kumamoto and Seoul is 652 km, which classifies this as a short-haul route. Short-haul flights typically cover distances under 1,500 km, making this a relatively quick journey in terms of air travel.

How much is a round trip from Kumamoto to Seoul

Regular price: $131 - $222

Prices for flights from Kumamoto to Seoul are currently within the regular range.

The regular price range for this route is between $131 and $222. The current lowest deal is $161 with T'way Air, for travel from June 22 to June 23.

now $161

Low $131

High $222

The cheapest time to fly from Kumamoto to Seoul

The cheapest month to fly from KMJ to SEL is September, with a median price of $122. The most expensive month is April, with a median price of $373. Prices are generally lower from March to October.

September

Cheapest

Flights from $122

April

Most Expensive

Flights from $373

Jan

Mar

Apr

May

Jun

Jul

Sep

Oct

Nov

Direct flights from Kumamoto to Seoul

T'way Air

Last-minute flights going from Kumamoto to Seoul

Thu, Jun 18

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

T'way Air

$176

$177

One-way

Thu, Jun 18

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

Korean Air

$160

$183

One-way

Thu, Jun 18

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

T'way Air

$138

$184

One-way

Thu, Jun 18

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

T'way Air

$174

$191

One-way

Fri, Jun 19

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

T'way Air

$175

$177

One-way

Fri, Jun 19

⌛ Last-Minute

KMJ - Seoul

Kumamoto (KMJ) - Seoul (ICN)

T'way Air

$172

$183

One-way

Biggest price drops on these dates for flights from Kumamoto to Seoul

3 nights

Jul 17 - Jul 20

$244 → $229

1 night

Jun 22 - Jun 23

$169 → $161

2 nights

Jun 18 - Jun 20

$176 → $177

1 night

Jun 19 - Jun 20

$175 → $177

Popular Airports to fly from Kumamoto to Seoul

Kumamoto - Seoul route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Kumamoto to Seoul have been around $161, which is below the typical level.

📅 Best time to fly

Fly in September for the best prices

Historically, September has the cheapest flights, with a median price of $122.

⏱️ Flight duration

Connecting flights take 8h 10m

The typical flight duration with one stop from Kumamoto to Seoul is 8h 10m.

✈️ Airlines & availability

T'way Air offers direct flights

Only T'way Air has offered direct flights on this route recently, with limited availability.

🏆 Airline highlight

T'way Air: direct flights from Kumamoto

T'way Air has offered direct flights from Kumamoto to Seoul, with 1 deal found recently.

🎯 Booking tip

Consider connecting flights for more options

Only 11.5% of recent deals were for direct flights, with most having one stop.

Kumamoto main airports to depart from

Kumamoto (KMJ)

Cheapest

Kumamoto Airport is a convenient departure point for flights to Seoul, offering competitive prices.

📍 ~15 km from Kumamoto (reachable by car or bus)

💸 Flights from ~$161

Seoul main airports to arrive at

Incheon International (ICN)

Cheapest

Incheon International Airport is a good option for flights to Seoul, offering competitive prices for travelers.

📍 ~50 km from city center (reachable by public transport or car)

💸 Flights from ~$173

Gimpo International (GMP)

Gimpo International Airport provides another arrival choice for flights to Seoul.

📍 ~20 km from city center (reachable by public transport or car)

💸 Flights from ~$214

Airports nearby Seoul used as alternative

Cheongju International (CJJ)

Cheongju International is a practical alternative for Seoul due to its proximity and international status.

📍 ~110 km from destination city (reachable by express bus and rail services)

💸 Flights from ~$253

Gimhae International (PUS)

Cheapest

Gimhae International is an excellent secondary choice thanks to high-speed rail (KTX) connectivity.

📍 ~320 km from destination city (reachable by KTX high-speed rail)

💸 Flights from ~$64

Daegu International (TAE)

Daegu International is an excellent secondary choice thanks to high-speed rail (KTX) connectivity.

📍 ~235 km from destination city (reachable by high-speed rail)

💸 Flights from ~$257

Wonju (WJU)

Wonju is geographically the closest candidate airport to Seoul, useful for specific domestic connections.

📍 ~95 km from destination city

💸 Flights from ~$284

Gwangju (KWJ)

Gwangju is a major regional airport with KTX connectivity to Seoul for domestic travel.

📍 ~270 km from destination city (reachable by KTX)

💸 Flights from ~$253

Business & First Class Flight Deals to Seoul

40% AI deal score

$1,314

From KMJ

Elite

Jun 25

Seoul, South Korea

39% AI deal score

$1,358

Frequently Asked Questions About Flights to Seoul

Historically, booking flights from Kumamoto to Seoul 60+ days in advance typically yields the lowest prices, with an average fare of $207. Prices tend to increase as the departure date approaches. For instance, flights booked 14-27 days out average around $312, while those booked 0-6 days before departure are typically the most expensive, averaging $391. Planning ahead by at least two months can result in significant savings on this route.

Across the trailing quarter, a good price for a flight from Kumamoto to Seoul is considered to be $186 or less. The median price for this route historically stands at $330. Fares can go higher, with 75% of prices observed being $424 or less. Travelers aiming for a budget-friendly trip should target fares around the $186 mark.

Historically, September is often the best month to fly from Kumamoto to Seoul, with a median price of $122. July also offers competitive fares, with a median price of $126. October is another favorable month, showing a median price of $132. These months typically present prices significantly lower than the annual median of $330 for this route.

Related routes

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