£71 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 Osaka Kansai Intl Airport, at £112 return. The most popular route is Cheongju (CJJ) to Osaka Kansai Intl Airport (KIX) and the cheapest return airline ticket found on this route in the last 72 hours was £112.

What is the cheapest day to fly to Japan?

The average price of all flights from South Korea to Japan clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Japan is Monday when return tickets can be as cheap as £150. On the other hand, the most expensive day to fly is Thursday, when return prices are £190 on average.

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 £107 (return) on average. On the other hand, the most expensive months are July and September, when the average cost of round-trip tickets is £317 and £270 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 round-trip flights cost £206 on average. Morning departures are around 9% 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 £272.

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 £59.

Good to know - Cheap tickets from South Korea to Japan

Low season

June

High season

January
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (14% 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.

See more FAQs

Top 5 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
8.3Comfort
8.7Boarding
9.1Crew
8.0Entertainment
8.0Food
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

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

Food choice could be better, plus the crew can walk around and offer snacks and drinks. Also the air-conditioning onboard blows high speed, and very cold makes the trip uncomfortable.

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

I loved everything, I was just a little confused on my bag allowance. When I checked in it said I was allowed 2 check in bags, but when I got there they said I was only allowed 1 so I had to pay an additional 200 dollars! Other then that everything was great! I would love to use your Airlines again when I fly out to Manila again in late May, however I want to be able to have 2 bags included this time lol 😆

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

The boarding process was good. The toilet could be better maintained.

This has been the worst experience I've ever had. We arrived to Ho Chi Minh Airport and were supposed to get our Asiana ticket from the transfer counter as we came with a different airline. However, the staff at the transfer counter were not helpful and kept giving us different information. We were first told by Asiana airlines staff we had to wait 2 hours so they could print out and give us our tickets, then someone else told us we had to wait 3hrs, someone told us "I don't know, just go sit and wait and we will tell you later." This was at a place in the Ho Chi Minh airport that had no coffee or food shops, nothing, just immigration (to enter Vietnam with a Vietnam Visa) and security (to transfer into the gates) but we needed our printed boarding pass to go through. It wasn't until we demanded to speak to a supervisor as our flight time was 1hr away because they kept telling us "there's alot of time left for your international flight, we will get your tickets later" we still had to wait around 20minutes for the "Supervisor" to give us our tickets. I would NOT recommend Asiana Airlines, especially if going thru Ho Chi Minh Airport as they are not helpful. (We almost missed our flight, due to their lazyness and incompetence of printing our tickets) I would suggest Asiana Airlines to have a Machine in the transfer area so passengers can easily print out their boarding passes themselves and save some money by not hiring incompetent staff that can't do a simple task such as printing a boarding pass.

Great service. They could offer vegetarian food and do more to reduce waste.

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."

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.

My experience was great. The flight attendants were very helpful and nice, and the food was very good.

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

The ailine departed and arrived late foe every leg of the trip, causing myself and my travel companions to miss every connecting flight. It was very unorganized given theat there was a lot of miscommunication. The flights offered are unrealistic and when you call they assure you that the plane waits for you. I missed an. entire day of my vacation and any entire day of rest back home because of the airline. I do not plan to support the airline again. Thank you

Book cheap flights from South Korea to Japan

Cheapest flights to Japan from South Korea found in 2025

Recent return flight deals

11/6Wed
1 stopJeju Air
7h 10mGMP-CTS
13/6Fri
1 stopJeju Air
17h 50mCTS-GMP
£176
10/6Tue
1 stopJeju Air
17h 50mGMP-CTS
16/6Mon
1 stopJeju Air
17h 50mCTS-GMP
£180
17/7Thu
directANA
2h 10mGMP-HND
20/7Sun
directANA
2h 15mHND-GMP
£240
15/7Tue
directANA
2h 10mGMP-HND
23/7Wed
directANA
2h 15mHND-GMP
£241
15/9Mon
directJapan Airlines
2h 10mGMP-HND
30/9Tue
directJapan Airlines
2h 20mHND-GMP
£254
5/8Tue
directJapan Airlines
2h 05mGMP-HND
9/8Sat
directJapan Airlines
2h 20mHND-GMP
£260
9/6Mon
1 stopKorean Air
8h 15mGMP-CTS
19/6Thu
1 stopKorean Air
27h 05mCTS-GMP
£281
9/6Mon
1 stopKorean Air
9h 15mGMP-CTS
12/6Thu
1 stopKorean Air
18h 35mCTS-GMP
£282
5/7Sat
directAsiana Airlines
2h 05mGMP-HND
16/7Wed
directAsiana Airlines
2h 20mHND-GMP
£289
23/5Fri
directAsiana Airlines
2h 05mGMP-HND
3/6Tue
directAsiana Airlines
2h 20mHND-GMP
£290

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Recent one-way flight deals

11/6Wed
1 stopJeju Air
7h 10mGMP-CTS
£71
4/6Wed
1 stopJeju Air
7h 10mGMP-CTS
£98
31/5Sat
1 stopJeju Air
17h 50mGMP-CTS
£109
24/6Tue
1 stop
6h 50mGMP-HND
£118
6/8Wed
directJapan Airlines
2h 05mGMP-HND
£141
22/8Fri
1 stopPeach
5h 15mGMP-CTS
£141
6/8Wed
1 stopJapan Airlines
7h 40mGMP-ITM
£145
5/6Thu
directAsiana Airlines
2h 10mGMP-HND
£208
30/4Wed
directAsiana Airlines
2h 05mGMP-HND
£213
24/6Tue
directKorean Air
2h 20mGMP-HND
£216

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Last minute flights to Japan

Last minute flight, train and bus deals

28/4Mon
multi-stopJapan Airlines
7h 10mGMP-CTS
1/5Thu
multi-stopJapan Airlines
5h 50mCTS-GMP
£269
26/4Sat
directJapan Airlines
2h 10mGMP-HND
30/4Wed
directJapan Airlines
2h 20mHND-GMP
£277
25/4Fri
multi-stopKorean Air
8h 10mGMP-CTS
30/4Wed
multi-stopKorean Air
23h 35mCTS-GMP
£282
29/4Tue
directJapan Airlines
2h 05mGMP-HND
2/5Fri
directJapan Airlines
2h 20mHND-GMP
£284
26/4Sat
directAsiana Airlines
2h 10mGMP-HND
28/4Mon
directAsiana Airlines
2h 20mHND-GMP
£289
26/4Sat
directKorean Air
2h 20mGMP-HND
28/4Mon
directKorean Air
2h 20mHND-GMP
£290
26/4Sat
directAsiana Airlines
2h 10mGMP-HND
28/4Mon
directAsiana Airlines
2h 20mHND-GMP
£290
29/4Tue
multi-stopANA
9h 25mGMP-ITM
3/5Sat
multi-stopANA
5h 30mITM-GMP
£302
28/4Mon
multi-stopANA
6h 25mGMP-ITM
2/5Fri
multi-stopANA
6h 35mITM-GMP
£305
27/4Sun
multi-stopJuneyao Airlines
13h 40mGMP-HND
3/5Sat
multi-stopJuneyao Airlines
22h 50mHND-GMP
£2,046

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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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