$61 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 $132.

How much is a flight to Japan?

The average and cheapest price for all round-trip flights to Japan from each origin found by users searching on KAYAK in the last month.

A flight to Japan costs $208 on average. The cheapest price found on KAYAK in the last 2 weeks was $49 for the route Incheon Intl Airport (ICN) to Tokyo Haneda Airport (HND). The most popular routes on KAYAK are Cheongju to Sapporo which costs $168 on average, and Seoul to Tokyo, which costs $286 on average.

See prices from:

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 $215 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $709 and $488 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 $72.


Good to know

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 Monday when return tickets can be as cheap as $299. On the other hand, the most expensive day to fly is Saturday, when return prices are $385 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 afternoon, when round-trip flights cost $189 on average. Morning departures are around 6% 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 $285.

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
8.7Boarding
8.3Comfort
8.0Entertainment
8.0Food
9.1Crew
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

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

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.

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."

Book cheap flights from South Korea to Japan

Recent return flight deals

9/7Wed
directAir Seoul
1h 40mICN-KIX
16/7Wed
directAir Seoul
2h 00mKIX-ICN
$109
1/7Tue
directEastar Jet
1h 45mICN-KIX
10/7Thu
directEastar Jet
1h 50mKIX-ICN
$144
25/6Wed
directJeju Air
1h 45mICN-KIX
26/6Thu
directJeju Air
2h 00mKIX-ICN
$146
15/7Tue
directJeju Air
1h 40mGMP-KIX
17/7Thu
directJeju Air
2h 00mKIX-GMP
$147
3/7Thu
directJin Air
1h 50mICN-KIX
7/7Mon
directJin Air
1h 50mKIX-ICN
$163
18/7Fri
directJin Air
1h 50mICN-KIX
20/7Sun
directJin Air
1h 50mKIX-ICN
$186
9/7Wed
directKorean Air
1h 35mICN-UKB
16/7Wed
directKorean Air
2h 10mUKB-ICN
$230
16/7Wed
directAsiana Airlines
1h 45mICN-KIX
28/7Mon
directAsiana Airlines
1h 50mKIX-ICN
$230
14/7Mon
directAsiana Airlines
1h 40mGMP-KIX
28/7Mon
directAsiana Airlines
1h 45mKIX-GMP
$253
29/6Sun
directKorean Air
1h 35mICN-UKB
9/7Wed
directKorean Air
2h 10mUKB-ICN
$259

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Recent one-way flight deals

1/7Tue
directT'way Air
2h 05mICN-KIX
$61
1/7Tue
directT'way Air
2h 05mICN-KIX
$63
1/7Tue
directJeju Air
1h 40mGMP-KIX
$69
1/7Tue
directJeju Air
1h 40mGMP-KIX
$74
29/10Wed
directAir Japan
2h 25mICN-NRT
$111
24/9Wed
directAsiana Airlines
1h 40mGMP-KIX
$121
24/9Wed
directAsiana Airlines
1h 40mGMP-KIX
$123
1/7Tue
directKorean Air
1h 35mICN-UKB
$130
17/6Tue
directKorean Air
1h 35mICN-UKB
$144
8/10Wed
directAir Japan
2h 40mICN-NRT
$216

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Last minute flights to Japan

Last minute flight, train and bus deals

17/6Tue
directJeju Air
1h 50mICN-KIX
17/6Tue
directJeju Air
2h 00mKIX-ICN
$146
13/6Fri
directJeju Air
1h 45mICN-KIX
17/6Tue
directJeju Air
2h 00mKIX-ICN
$147
17/6Tue
directJin Air
1h 55mICN-KIX
18/6Wed
directJin Air
1h 50mKIX-ICN
$169
16/6Mon
directJin Air
1h 55mICN-KIX
20/6Fri
directJin Air
1h 50mKIX-ICN
$213
14/6Sat
directEthiopian Air
2h 25mICN-NRT
18/6Wed
directEthiopian Air
2h 25mNRT-ICN
$239
13/6Fri
directEthiopian Air
2h 25mICN-NRT
20/6Fri
directEthiopian Air
2h 25mNRT-ICN
$247
13/6Fri
directKorean Air
1h 40mICN-UKB
16/6Mon
directKorean Air
2h 10mUKB-ICN
$259
13/6Fri
directKorean Air
1h 40mICN-UKB
16/6Mon
directKorean Air
2h 10mUKB-ICN
$261
13/6Fri
directAsiana Airlines
1h 40mGMP-KIX
16/6Mon
directAsiana Airlines
2h 00mKIX-GMP
$325
17/6Tue
directAsiana Airlines
2h 20mICN-NRT
5/8Tue
directAsiana Airlines
2h 30mNRT-ICN
$362

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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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