$28 Find Cheap Flights from South Korea to Japan

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Japan

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

What is the cheapest flight to Japan?

These are the best round-trip 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 $51 round-trip. The most popular route is Cheongju (CJJ) to Tokyo Narita Airport (NRT) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $57.

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 $165 on average. The cheapest price found on KAYAK in the last 2 weeks was $33 for the route Incheon Intl Airport (ICN) to Sapporo Chitose Airport (CTS). The most popular routes on KAYAK are Cheongju to Tokyo which costs $120 on average, and Seoul to Sapporo, which costs $203 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 $140 (return) on average. On the other hand, the most expensive months are October and September, when the average cost of round-trip tickets is $482 and $295 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 Nagoya Chubu Centrair Intl Airport (NGO), with an average flight price of $44.


Good to know

Low seasonJuly
High seasonJanuary
Cheapest flight$28
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Incheon to Fukuoka

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 travelers 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 round-trip 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 Tuesday where round-trip tickets can be as cheap as $219. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $245 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 $206 on average. Morning departures are around 7% 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 $298.

Reviews of the 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
8.7Boarding
8.0Food
8.0Entertainment
8.3Comfort
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

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 😆

Love flying Asiana. Been using it for over a decade now.

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

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

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.

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."

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Book cheap flights from South Korea to Japan

Recent round-trip flight deals

7/15Tue
nonstopEastar Jet
1h 20mICN-FUK
7/17Thu
nonstopEastar Jet
1h 40mFUK-ICN
$58
7/15Tue
nonstopEastar Jet
1h 20mICN-FUK
7/17Thu
nonstopEastar Jet
1h 40mFUK-ICN
$59
8/20Wed
nonstopJeju Air
1h 15mICN-FUK
8/24Sun
nonstopJeju Air
1h 30mFUK-ICN
$88
7/26Sat
nonstopJeju Air
1h 40mICN-FUK
7/28Mon
nonstopJeju Air
1h 30mFUK-ICN
$89
7/14Mon
nonstopJin Air
1h 25mICN-FUK
7/16Wed
nonstopJin Air
1h 25mFUK-ICN
$99
8/17Sun
nonstopJin Air
1h 25mICN-FUK
8/24Sun
nonstopJin Air
1h 25mFUK-ICN
$103
9/1Mon
nonstopAsiana Airlines
2h 20mICN-HND
9/2Tue
nonstopAsiana Airlines
2h 40mHND-ICN
$240
7/15Tue
nonstopAsiana Airlines
2h 20mICN-HND
7/16Wed
nonstopAsiana Airlines
2h 40mHND-ICN
$241
7/17Thu
nonstopKorean Air
2h 20mICN-HND
7/19Sat
nonstopKorean Air
2h 35mHND-ICN
$262
7/17Thu
nonstopKorean Air
2h 20mICN-HND
7/22Tue
nonstopKorean Air
2h 35mHND-ICN
$273

Search by stops

Search by airline

Search by price

Recent one-way flight deals

7/19Sat
nonstopAir Seoul
1h 35mICN-FUK
$28
7/11Fri
nonstopAir Seoul
1h 35mICN-FUK
$29
7/31Thu
nonstopJeju Air
1h 40mICN-FUK
$41
7/31Thu
nonstopJin Air
1h 25mICN-FUK
$43
8/29Fri
nonstopJeju Air
1h 15mICN-FUK
$48
7/30Wed
nonstopJin Air
1h 25mICN-FUK
$50
7/16Wed
nonstopT'way Air
2h 30mICN-NRT
$53
10/19Sun
nonstopAsiana Airlines
1h 20mICN-FUK
$61
7/24Thu
nonstopT'way Air
2h 30mICN-NRT
$64
9/21Sun
nonstopAsiana Airlines
2h 20mICN-HND
$104

Search by stops

Search by airline

Search by price

Last minute flights to Japan

Last minute flight, train and bus deals

7/7Mon
nonstopAir Seoul
1h 35mICN-FUK
7/10Thu
nonstopAir Seoul
1h 35mFUK-ICN
$64
7/7Mon
nonstopAir Seoul
1h 35mICN-FUK
7/10Thu
nonstopAir Seoul
1h 35mFUK-ICN
$65
7/4Fri
nonstopJeju Air
1h 35mICN-FUK
7/6Sun
nonstopJeju Air
1h 30mFUK-ICN
$89
7/6Sun
nonstopJin Air
1h 25mICN-FUK
7/9Wed
nonstopJin Air
1h 25mFUK-ICN
$92
7/4Fri
nonstopJin Air
1h 25mICN-FUK
7/9Wed
nonstopJin Air
1h 25mFUK-ICN
$95
7/8Tue
nonstopAsiana Airlines
1h 20mICN-FUK
7/13Sun
nonstopAsiana Airlines
1h 30mFUK-ICN
$113
7/6Sun
nonstopJeju Air
1h 35mICN-FUK
7/6Sun
nonstopJeju Air
1h 30mFUK-ICN
$122
7/6Sun
nonstopKorean Air
1h 25mICN-FUK
7/19Sat
nonstopKorean Air
1h 25mFUK-ICN
$127
7/4Fri
nonstopAsiana Airlines
1h 20mICN-FUK
7/13Sun
nonstopAsiana Airlines
1h 30mFUK-ICN
$129
7/6Sun
nonstopKorean Air
1h 30mICN-FUK
7/13Sun
nonstopKorean Air
1h 30mFUK-ICN
$134

Search by stops

Search by airline

Search by price

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.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.