£103 Find Cheap Flights from Japan to South Korea

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Booking Insights

KAYAK's insights & trends for flights to South Korea

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

What is the cheapest flight to South Korea?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to South Korea from Japan found in the last 72 hours was to Incheon Intl Airport, at £71 return. The most popular route is Sapporo Chitose Airport (CTS) to Incheon Intl Airport (ICN) and the cheapest return airline ticket found on this route in the last 72 hours was £71.

How much is a flight to South Korea?

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

A flight to South Korea costs £244 on average. The cheapest price found on KAYAK in the last 2 weeks was £44 for the route Osaka Kansai Intl Airport (KIX) to Seoul Gimpo Intl Airport (GMP). The most popular routes on KAYAK are Tokyo to Seoul which costs £205 on average, and Osaka to Seoul, which costs £892 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Japan to South Korea, 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 Japan to South Korea is May, when tickets cost £206 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is £584 and £321 respectively.

What is the cheapest time of day to fly to South Korea?

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

The cheapest time of day to fly to South Korea is generally in the morning, when retur flights cost £629 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the evening, which is peak travel time and where the average cost of a ticket is £745.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to South Korea, 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 Japan to South Korea, you should book around 4 weeks before departure, which saves you about 15% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Which is the cheapest airport to fly into in South Korea?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in South Korea is Busan Gimhae Airport (PUS), with an average flight price of £119.

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Good to know - Cheap tickets from Japan to South Korea

Low seasonFebruary
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly (6% more expensive on average)

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

Insights shared by verified travellers who flew the route from Japan to South Korea 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with Asiana Airlines
NRT
-
ICN
Mar 2025
The Aseana Air ground crew & in-flight staff were very professional & efficient yet pleasantly helpful & accommodating. Although it is no Changi airport, Narita has so many shops & restaurants to help kill lay over time .Bring power banks as the charging ports are far few & constantly clogged.
TanyaFlew with Asiana Airlines
OKA
-
ICN
Jul 2024
Maybe don’t sit in the center aisles for such a long flight. No way to lay your head to the side when sleeping
MichaelFlew with Asiana Airlines
NRT
-
ICN
Jun 2024
Pre book a taxi. The lines are insane.

FAQs for booking flights from Japan to South Korea

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

    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 Japan to South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Japan to South Korea 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 Japan to South Korea?

    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 Japan to South Korea 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 Japan to South Korea?

    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 Japan to South Korea 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 South Korea?

    Based on KAYAK data, the cheapest day to fly to South Korea is Monday when return tickets can be as cheap as £138. On the other hand, the most expensive day to fly is Sunday, when return prices are £622 on average.

Reviews of the top airlines flying from Japan to South Korea

 
Need help choosing which airline to fly with from Japan to South Korea? 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
9.2Crew
8.0Comfort
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

Boarding was disorganized. Cabin crew was rude. Food was okay. Baggage was lost in Jeddah. Called airline for the past 5 days, either no response or saying the same thing as always which was "No bag has arrived. It should be here by tonight."

A bit chaotic boarding flight but over all good experience.

We had a good flight experience with this airline despite reading many negative comments

Planes are good. However the entertainement system is slow. The headphones are of low quality and I could hardly hear a movie The movies lack subtitiles

The plane was ok, I was in business class and was surprised there were no pods and each seat was right next to another one. That said it was comfortable and the food and coffee were good. Entertainment wise again I was surprised to see only movies and no TV shows. Check-in at Toronto Pearson was an absolute disaster, which was especially disappointing as I was a business class passenger. There was no dedicated staffing for the business counter and four (4) airlines employees assisted one economy class passenger for about 15 minutes when one could have easily assisted me. Overall room for improvement, particularly in the on-ground experience and airplane infrastructure.

Delay not posted, only departure time listed- not boarding time. We left an hour late and arrived 45 min late. Restrooms had backed up sinks and toilets not flushed ) passenger error). Lots of screen for entertainment didn’t work. But we arrived with our luggage

The crew was not helping us in the airports ..Very bad experience..the washrooms are not meeting the expectations..need more good service... The hotel service was good but there is a very long wait time which wasted time to go through..

Need to do a lot of improvement on service and cleaness

Our first flight was delayed and when we got off that plane, nobody was really helping to direct us to the next gate. It was very frustrating. One staff simply said hurry, which wasn’t helpful. We had to go a long way to get to the next gate. Another issue on the plane itself was the bathrooms were disgusting and filthy and it didn’t seem like anybody was checking on them were cleaning them and it was a long flight. There was urine on the floor and they stunk. Also, the screen in front of my seat did not work, and I tried different headphones and still had no sound. You would think somehow those things are reviewed occasionally for working order.

Good. Crew do seem to be less friendly- management are clearly limiting them or not empowering them as they used to.

Everything you need to know for your flight to South Korea

Cabin class types available on flights to South Korea

Cabin classes available on flights to South Korea. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to South Korea
Business Class flights to South Koreafrom £1,168
Premium Economy Class flights to South Koreafrom £413
Economy class flights to South Koreafrom £71