£79 Find Cheap Flights from South Korea to Japan – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from South Korea to Japan departing on 13/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from South Korea to Japan

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from South Korea to Japan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from South Korea to Japan

Wed, 16 Sep - Wed, 23 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£201Jeju Air
Thu, 17 Sep - Wed, 23 Sep
Multiple Airlines Logo
13:10 - 22:30
GMP
-
HND
9h 20m
1 stop
Multiple Airlines Logo
07:20 - 16:15
HND
-
GMP
8h 55m
1 stop
£204Multiple Airlines
Wed, 2 Sep - Sun, 6 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£205Jeju Air
Fri, 11 Sep - Wed, 16 Sep
Multiple Airlines Logo
13:10 - 18:45
GMP
-
HND
5h 35m
1 stop
Multiple Airlines Logo
07:20 - 16:15
HND
-
GMP
8h 55m
1 stop
£208Multiple Airlines
Sun, 13 Sep - Wed, 16 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£210Jeju Air
Sun, 13 Sep - Wed, 16 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£210Jeju Air
Sun, 13 Sep - Wed, 16 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£212Jeju Air
Wed, 2 Sep - Sun, 6 Sep
Jeju Air Logo
19:55 - 13:30
GMP
-
CTS
17h 35m
1 stop
Jeju Air Logo
14:30 - 08:15
CTS
-
GMP
17h 45m
1 stop
£212Jeju Air
Thu, 27 Aug - Thu, 3 Sep
Japan Airlines Logo
08:00 - 13:35
GMP
-
ITM
5h 35m
1 stop
Japan Airlines Logo
14:20 - 21:15
ITM
-
GMP
6h 55m
1 stop
£282Japan Airlines
Tue, 15 Sep - Wed, 23 Sep
Japan Airlines Logo
08:00 - 13:35
GMP
-
ITM
5h 35m
1 stop
Japan Airlines Logo
08:25 - 17:55
ITM
-
GMP
9h 30m
1 stop
£282Japan Airlines
Booking Insights

KAYAK's insights & trends for flights to Japan

Get data-powered insights and trends into flights to Japan to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Japan?

These are the best return prices found by users searching on KAYAK in the last 5 days.

The cheapest ticket to Japan from South Korea found in the last 5 days was to Tokyo Narita Airport, at £74 return. The most popular route is Cheongju (CJJ) to Tokyo Narita Airport (NRT) and the cheapest return ticket found on this route in the last 5 days was £74.

What is the cheapest month to fly from South Korea to Japan?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from South Korea to Japan, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from South Korea to Japan is August, when tickets cost £59 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is £149 and £102 respectively.

What is the cheapest time of day to fly to Japan?

The average price for all round-trip flights from South Korea to Japan depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Japan is generally in the morning, when retur flights cost £174 on average. Morning departures are around 15% cheaper than evening flights, on average. The most expensive time of day to fly to Japan is generally at night, which is peak travel time and where the average cost of a ticket is £227.

How far in advance should I book a flight from South Korea to Japan?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Japan, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from South Korea to Japan, you should book around 10 weeks before departure, which saves you about 42% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Which is the cheapest airport to fly into in Japan?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Japan is Kumamoto Airport (KMJ), with an average flight price of £60.

Good to know - Cheap tickets from South Korea to Japan

Low season

March
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (11% more expensive on average)

Flights from South Korea to Japan: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from South Korea to Japan 
Verified travelerFlew with Japan Airlines
GMP
-
HND
May 2026
Side bag with what you need keep with you because they could have geriatric people sitting there and you can't get to your bag up above
Verified travelerFlew with Asiana Airlines
ICN
-
OKA
Aug 2024
If you have to switch from Terminal 2 to Terminal 1 it is a bit of a hassle. That needs to be fixed. I should not have to go through two separate security checks after landing in the transfer areas.

FAQs for booking flights from South Korea to Japan

  • How does KAYAK find such low prices on flights from South Korea to Japan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from South Korea to Japan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from South Korea to Japan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from South Korea to Japan is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from South Korea to Japan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from South Korea to Japan with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from South Korea to Japan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from South Korea to Japan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Japan?

    Based on KAYAK data, the cheapest day to fly to Japan is Saturday when return tickets can be as cheap as £170. On the other hand, the most expensive day to fly is Friday, when return prices are £204 on average.

Reviews of the top 5 airlines flying from South Korea to Japan

 
Need help choosing which airline to fly with from South Korea to Japan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.6
Jin AirOverall score based on 23 reviews
8.9Boarding
7.6Entertainment
8.0Comfort
9.2Crew
7.8Food
Airline reviews

I like the landing which is nice and safe, seats are also comfortable

10.0 ExcellentAnonymous, Apr 2025
NRT - ICN
Read more Jin Air reviews

I like the landing which is nice and safe, seats are also comfortable

Staff on board were good - food was fine tasted good - tv was old 1970ts in seat back but hey it was a 2 out flight so no drama

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

Aircraft is pretty old. Seat is not comfortable. Meal quality is disappointing. Entertainment system is not impressive at all.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

Delightful. Excellent service, excelling cabin, could never fly coach again! 😎😆😉

Our flight was canceled, then they moved us to a different flight number yet we didn’t receive notifications timely. We had to find out the latest on our own / later AA sent a text with the updated info..

They didn't tell me they changed my flight. So I got confused on what happened to my flight.

Great flight experience although the food served was not up to the usual SQ standards with the main being too saucy.

There were no vegetarian options on flight from India. Then on the next flight there was no chosen entree available. Movie selection was mediocre

It was fine but my trip from Narita Japan to L.A kind of mediocre because did not get the assigned window seat.

It was good overall. What I liked most was the restrooms. Compared to other airlines, the restrooms seem larger and look clean. The seats also look clean. The attendants are nice, except one time during the flight. I was sitting on aisle and a man sitting window. He asked an attendant for a snack. She told him to go ahead and get some snack from the section with food storage (I am not sure how it is called). So, I had to get up to let him get out from his seat. Why she did not bring him some snacks so that I would not have to move, I do not know... I was kind of surprised how inconsiderate the attendant was.

Very helpful,I was trapped in a window seat with geriatric people, other stewards brought me stuff since I couldn't move for myself on a 12 hour flight

The flight was canceled, and the airlines stated that they don't know when they can put me on another flight. I had to purchase another flight from a different airline. I am now having issues requesting a refund. What a nightmare experience, I will not refer anyone to this airline.

The flight was delayed almost three hours because of a labor issue. During the delay, JAL staff did a poor job communicating with customers about what was happening and seemed confused about what to do.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

Coming back to America was a peaceful flight everyone and everything was perfect

Staff always with a smile and very helpful with my mom who has mobility issues.

Tightest knee space ever experienced on any budget airline. Crew polite and efficient, take off and arrival on time. Surprised that they did not offer water on flight except as sales product. Questions about Food and entertainment not applicable since neither are offered.

At the boarding gate, Jeju airline accepted "carry on" bags for checking in for free due to the "limited cabin space". This is because most passengers were carrying multiple bags that exceed the size and weight limit for carry on items. Rather than inspecting carry-on bags at the counter and requiring excess bags to be checked in for a fee, they allowed freeloading at the boarding gate to to the detriment of those who paid the fee for checked bags. This is totally unfair.

As posred earlier the crew was very accommodating & professional. Thank You Allen

All though you can not help it the kids was loud and unruly, The crew was very accommodating and professional. Thank You Allen.

No priority counter check in for families with young children.

The flight was delayed from GUM to ICN, there was no notification on how delayed the flight would be. Although we received notice, there was no specified time given. The flight was also very uncomfortable.

Everything you need to know for your flight to Japan

Cabin class types available on flights to Japan

Cabin classes available on flights to Japan. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.