£155 Find Cheap Flights from South Korea to Japan

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KAYAK's insights & trends for flights to Japan

Get data-powered insights and trends for 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 72 hours.

The cheapest ticket to Japan from South Korea found in the last 72 hours was to Fukuoka, at £73 return. The most popular route is Cheongju (CJJ) to Tokyo Narita Airport (NRT) and the cheapest return airline ticket found on this route in the last 72 hours was £143.

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 April, when tickets cost £103 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is £340 and £234 respectively.

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 the flight from South Korea to Japan, you should book around 6 weeks before departure. 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 Fukuoka Airport (FUK), with an average flight price of £29.


Good to know - Cheap tickets from South Korea to Japan

Low seasonJuly
High seasonJanuary
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (17% more expensive on average)

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 Wednesday when return tickets can be as cheap as £146. On the other hand, the most expensive day to fly is Thursday, when return prices are £195 on average.

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

    The cheapest time of day to fly to Japan is generally in the morning, when round-trip flights cost £194 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 £276.

Top 4 airlines serving 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.
8.7
Jin AirOverall score based on 19 reviews
8.0Food
8.7Boarding
9.1Crew
8.0Entertainment
8.3Comfort
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025NRT - 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

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

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

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

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.

Cons: "Sold me a ticket then cancelled 15 minutes later due to not having updated information from the airline on bookings."

Im if Ethiopian can allow customers to use their mileage for in flight connexion it will be great.

It was wonderful best Air lines covert and all very happy with their service they have been very helpful and friendly

For Vegetarian Food was very poor. Though we had opted for Asian Vegetarian Food they didn’t serve but only what was available was served. We were offered Smoked Salmon!

It was very bad experience with Ethiopian airlines . The flight was delayed in both ways . On the way coming back one of the crews dropped hot coffee on my whole body and other crew dropped used dirty glasses on top of me . The same crew that dropped hot coffee on me hit me with the food trolley on my knee while I was sleeping . I couldn’t sit properly due to the pain on my knee caused by those irresponsible crews . Very unprofessional airlines

Flight was delayed an hour. Also, I bought an extra legroom seat online; but the actually plane was a different configuration so I didn't get what I paid for . This happened on the Addis to Lusaka leg of my trip.

Needs improvement because some of the tvs and charging ports weren’t working

The plane was overbooked and the crew was very rude. My luggage was never put on the plane. I got to NY and waited 2 hours just to find out that my luggage was left.

Very bad experience flight was over 5 hours delayed 😑 not a chance to be put on another flight we had to stay at the hotel we lost 2 days on our vacation. Never again I will fligh with Ethiopian airlines.

Terrible customer service I lost my bag luggage and I still haven’t received any information

The flight delayef for over 2 hours so my route was changed leading to arriving to my destination without my luggage

Book cheap flights from South Korea to Japan

Cheapest flights to Japan from South Korea found in 2025

Recent return flight deals

16/9Tue
1 stopJeju Air
17h 50mGMP-CTS
24/9Wed
1 stopJeju Air
17h 50mCTS-GMP
£155
9/9Tue
1 stopJeju Air
17h 50mGMP-CTS
15/9Mon
1 stopJeju Air
17h 50mCTS-GMP
£168
9/7Wed
directANA
2h 10mGMP-HND
16/7Wed
directANA
2h 25mHND-GMP
£223
15/7Tue
directANA
2h 15mGMP-HND
16/7Wed
directANA
2h 15mHND-GMP
£224
6/8Wed
directJapan Airlines
2h 05mGMP-HND
8/8Fri
directJapan Airlines
2h 20mHND-GMP
£264
19/9Fri
directJapan Airlines
2h 10mGMP-HND
2/10Thu
directJapan Airlines
2h 20mHND-GMP
£266
19/9Fri
1 stopKorean Air
24h 15mGMP-CTS
23/9Tue
1 stopKorean Air
27h 05mCTS-GMP
£278
17/10Fri
1 stopKorean Air
7h 15mGMP-CTS
18/10Sat
1 stopKorean Air
25h 35mCTS-GMP
£280
22/6Sun
directAsiana Airlines
2h 05mGMP-HND
4/8Mon
directAsiana Airlines
2h 20mHND-GMP
£285
18/10Sat
directAsiana Airlines
2h 05mGMP-HND
4/11Tue
directAsiana Airlines
2h 20mHND-GMP
£286

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Recent one-way flight deals

17/9Wed
1 stopJeju Air
7h 15mGMP-CTS
£68
19/6Thu
1 stopJeju Air
7h 15mGMP-CTS
£71
2/7Wed
1 stopJeju Air
7h 15mGMP-CTS
£72
10/8Sun
directJapan Airlines
2h 05mGMP-HND
£147
10/8Sun
directJapan Airlines
2h 05mGMP-HND
£148
25/6Wed
directANA
2h 10mGMP-HND
£160
25/6Wed
directANA
2h 10mGMP-HND
£160
8/10Wed
directAsiana Airlines
2h 05mGMP-HND
£213
9/10Thu
directAsiana Airlines
2h 05mGMP-HND
£214
30/7Wed
directKorean Air
2h 20mGMP-HND
£216

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Last minute flights to Japan

Last minute flight, train and bus deals

17/6Tue
multi-stopJeju Air
17h 50mGMP-CTS
19/6Thu
multi-stopJeju Air
17h 50mCTS-GMP
£150
17/6Tue
multi-stopJeju Air
17h 50mGMP-CTS
23/6Mon
multi-stopJeju Air
17h 50mCTS-GMP
£155
17/6Tue
multi-stopJeju Air
17h 50mGMP-CTS
19/6Thu
multi-stopJeju Air
17h 50mCTS-GMP
£156
13/6Fri
multi-stopKorean Air
9h 15mGMP-CTS
17/6Tue
multi-stopKorean Air
23h 35mCTS-GMP
£277
13/6Fri
multi-stopKorean Air
7h 15mGMP-CTS
17/6Tue
multi-stopKorean Air
23h 35mCTS-GMP
£278
17/6Tue
directAsiana Airlines
2h 05mGMP-HND
4/8Mon
directAsiana Airlines
2h 20mHND-GMP
£285
13/6Fri
directAsiana Airlines
2h 10mGMP-HND
14/6Sat
directAsiana Airlines
2h 20mHND-GMP
£286
17/6Tue
directJapan Airlines
2h 10mGMP-HND
2/8Sat
directJapan Airlines
2h 20mHND-GMP
£288
17/6Tue
directJapan Airlines
2h 05mGMP-HND
2/8Sat
directJapan Airlines
2h 20mHND-GMP
£290
13/6Fri
multi-stopJuneyao Airlines
13h 40mGMP-HND
19/6Thu
multi-stopJuneyao Airlines
21h 15mHND-GMP
£1,530

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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.

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