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Cheap flights from South Korea to Japan from £68

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — FUK
18 Jun — 25 Jun1
1 adult

Cheap flight deals from South Korea to Japan

Keep the following information in mind while searching for South Korea to Japan flight deals. Data was last updated 13 June 2025.

Round-trip from

£152

One-way from

£68

Popular in

January

Cheapest in

July

Average price

£129

Good round-trip deal

£71 or less

Good one-way deal

£38 or less
Jeju Air
  • Jeju Air
  • 17/9-24/9
  • 2 total stops
  • 25h 05m total
  • South Korea to Japan
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Jeju Air
  • Jeju Air
  • 17/9
  • 1 total stop
  • 7h 15m total
  • South Korea to Japan
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from South Korea to Japan.
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Price to beat on a one-way flight from South Korea to Japan.
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Find flight deals from South Korea to Japan

Cheapest flights from South Korea to Japan
Explore the most affordable flight options available from South Korea to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Thu 12/606:15GMP - CTS
1 stop7h 15mJeju Air
Wed 18/614:30CTS - GMP
1 stop17h 50mJeju Air
Deal found 11/6£149
Wed 9/707:40GMP - HND
Nonstop2h 10mANA
Wed 16/716:10HND - GMP
Nonstop2h 25mANA
Deal found 11/6£223
Wed 9/707:40GMP - ITM
1 stop5h 25mANA
Wed 16/716:50ITM - GMP
1 stop5h 30mANA
Deal found 12/6£225
Wed 6/807:55GMP - HND
Nonstop2h 05mJapan Airlines
Fri 8/819:30HND - GMP
Nonstop2h 20mJapan Airlines
Deal found 11/6£264
Thu 4/1214:25GMP - HND
1 stop7h 05mAir China
Wed 10/1215:25HND - GMP
1 stop21h 40mAir China
Deal found 11/6£275
Fri 13/607:00GMP - CTS
1 stop9h 15mKorean Air
Tue 17/617:15CTS - GMP
1 stop23h 35mKorean Air
Deal found 12/6£277
Wed 16/707:55GMP - ITM
1 stop4h 40mJapan Airlines
Sat 26/714:20ITM - GMP
1 stop7h 30mJapan Airlines
Deal found 11/6£279
Sun 22/608:40GMP - HND
Nonstop2h 05mAsiana Airlines
Wed 2/712:05HND - GMP
Nonstop2h 20mAsiana Airlines
Deal found 12/6£284
Tue 12/807:55GMP - CTS
1 stop12h 20mJapan Airlines
Wed 20/808:50CTS - GMP
1 stop13h 00mJapan Airlines
Deal found 13/6£291
Tue 29/713:05GMP - HND
1 stop5h 50mMultiple Airlines
Sat 2/807:15HND - GMP
1 stop5h 05mMultiple Airlines
Deal found 11/6£294
Sun 14/909:00GMP - HND
Nonstop2h 20mKorean Air
Fri 19/912:35HND - GMP
Nonstop2h 20mKorean Air
Deal found 11/6£297
Mon 28/707:40GMP - ITM
1 stop5h 55mMultiple Airlines
Sat 2/812:00ITM - GMP
1 stop6h 35mMultiple Airlines
Deal found 11/6£449

Cheapflights Fare Finder

Customise your flight search to find flights from South Korea to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from South Korea to Japan that are best for you.

Fly from

South Korea

Fly to

Japan

Route

Depart

Return

Price

SeoulSapporo

GMP - CTS

GMPCTS

Seoul Gimpo Intl

Wed 17/9

06:15-13:30

1 stop7h 15m

Sapporo Chitose

Wed 24/9

14:30-08:20

1 stop17h 50m

£152

SeoulTokyo

GMP - HND

GMPHND

Seoul Gimpo Intl

Wed 9/7

07:40-09:50

Nonstop2h 10m

Tokyo Haneda

Wed 16/7

16:10-18:35

Nonstop2h 25m

£223

SeoulOsaka

GMP - ITM

GMPITM

Seoul Gimpo Intl

Wed 9/7

07:40-13:05

1 stop5h 25m

Osaka Itami

Wed 16/7

16:50-22:20

1 stop5h 30m

£225

SeoulTokyo

GMP - HND

GMPHND

Seoul Gimpo Intl

Wed 6/8

07:55-10:00

Nonstop2h 05m

Tokyo Haneda

Fri 8/8

19:30-21:50

Nonstop2h 20m

£264

SeoulTokyo

GMP - HND

GMPHND

Seoul Gimpo Intl

Thu 10/7

14:25-21:30

1 stop7h 05m

Tokyo Haneda

Thu 17/7

08:30-13:05

1 stop28h 35m

£272

SeoulSapporo

GMP - CTS

GMPCTS

Seoul Gimpo Intl

Fri 19/9

16:00-16:15

1 stop24h 15m

Sapporo Chitose

Tue 23/9

17:15-20:20

1 stop27h 05m

£278

SeoulOsaka

GMP - ITM

GMPITM

Seoul Gimpo Intl

Wed 16/7

07:55-12:35

1 stop4h 40m

Osaka Itami

Sat 26/7

14:20-21:50

1 stop7h 30m

£279

SeoulTokyo

GMP - HND

GMPHND

Seoul Gimpo Intl

Sat 13/9

16:10-18:30

Nonstop2h 20m

Tokyo Haneda

Fri 19/9

12:35-14:55

Nonstop2h 20m

£284

SeoulTokyo

GMP - HND

GMPHND

Seoul Gimpo Intl

Fri 4/7

08:40-10:45

Nonstop2h 05m

Tokyo Haneda

Sat 5/7

20:05-22:25

Nonstop2h 20m

£285

SeoulSapporo

GMP - CTS

GMPCTS

Seoul Gimpo Intl

Tue 12/8

07:55-20:15

1 stop12h 20m

Sapporo Chitose

Fri 15/8

08:00-21:50

1 stop13h 50m

£291

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 26 results
1
2
3

Best time to book a flight from South Korea to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from South Korea with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Korea to Japan

What is the cheapest month to book a flight from South Korea to Japan?

Currently, November is the cheapest month in which you can book a flight from South Korea to Japan (average of £550). Flying from South Korea to Japan in July is currently the most expensive (average of £1,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KR to JP?

Find hourly flight availability from South Korea to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Korea to Japan as you normally would.

Weekly flight availability from South Korea to Japan

Explore weekly flight availability from South Korea to Japan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 June 2025.

The most flights from KR0 to JP0 are scheduled on a Wednesday (52 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (45 on average).

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Japan ranges from 50.0 - 210.0 inches per month. September is typically the wettest month, when rainfall can reach 210.0 mm. January is typically the driest time to visit Japan when rainfall is around 50.0 mm.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C).

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and ANA from South Korea to Japan to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very Good
1,091 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Japan Airlines
8.3
Very Good
1,490 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
ANA
8.3
Very Good
882 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Asiana Airlines
8.2
Very Good
440 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from South Korea to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this South Korea to Japan flight route?

    Flights from South Korea to Japan have been viewed 17 times in the past calendar month.

  • What are the cheapest airlines to fly from South Korea to Japan one-way?

    The cheapet airlines for a one-way flight from South Korea to Japan are Jeju Air (£68), Japan Airlines (£121), and ANA (£160).

  • Can I find deals for flights from South Korea to Japan that include hotel bookings?

    Yes. In addition to deals on South Korea to Japan flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from South Korea to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to Japan.

  • Can I find deals for business class flights from South Korea to Japan?

    Yes. Cheapflights offers flight deals from South Korea to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Korea to Japan?

    Currently, November is the cheapest month in which you can book a flight from South Korea to Japan (average of £550). Flying from South Korea to Japan in July is currently the most expensive (average of £1,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for South Korea to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Korea to Japan

Discover the top 3 airlines that operate flights from South Korea to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Jeju AirCheapest£105Average£164FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Eastar JetCheapest£105Average£187FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
ANACheapest£208Average£208FlexibilityNo cancel feeOn-time80%
Search ANA flights

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Yes! Cheapflights helps users easily find flights from South Korea to Japan with no change fees.

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