£96 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 £63 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 £63.

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 £200 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 Osaka to Seoul which costs £351 on average, and Tokyo to Seoul, which costs £196 on average.

See prices from:

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 January, when tickets cost £205 (return) on average. On the other hand, the most expensive months are December and September, when the average cost of round-trip tickets is £573 and £344 respectively.

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 3 weeks before departure, which saves you about 5% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 25 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 Seoul Gimpo Intl Airport (GMP), with an average flight price of £87.

Good to know - Cheap tickets from Japan to South Korea

Low seasonFebruary
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly (4% 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 
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 Wednesday when return tickets can be as cheap as £195. On the other hand, the most expensive day to fly is Tuesday, when return prices are £489 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.
7.6
Jeju AirOverall score based on 38 reviews
5.9Entertainment
8.0Boarding
7.6Comfort
6.0Food
8.4Crew
Airline reviews

Tightest knee space ever experienced on any budget airline. Crew polite and efficient, take off and arrival on time. Surprised that they did not offer water on flight except as sales product. Questions about Food and entertainment not applicable since neither are offered.

8.0 ExcellentAnonymous, Dec 2025
KHH - GMP
Read more Jeju Air reviews

Tightest knee space ever experienced on any budget airline. Crew polite and efficient, take off and arrival on time. Surprised that they did not offer water on flight except as sales product. Questions about Food and entertainment not applicable since neither are offered.

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.

It was a good experience - too many times checking at the airport - every time had to remove shoes , belt , laptop etc. that was a bit of exaggerated. The seat had a sharp metal plate -- which torn into my jeans.

The TV wasn't working No music for the whole flight from JFK to LOS It was too burring.

To the Ethiopian Airlines Customer Relations Team, I am writing to formally express my disappointment regarding my recent travel experience with Ethiopian Airlines on . Unfortunately, the level of service provided fell significantly short of the standards I expected from your airline. I would like to highlight the following serious issues encountered during the journey: • Cabin Condition and Hygiene: The aircraft cabin was notably poorly maintained. The seating area was dirty, and there was a persistent, unpleasant odor throughout the flight, which made the environment very uncomfortable for passengers. • Inadequate Service: The overall level of service provided by the staff was unsatisfactory and did not reflect a professional passenger experience. • Baggage Loss: Upon arrival, I was informed that my luggage was lost. This is particularly distressing as it has caused significant personal inconvenience and disruption to my schedule. As a frequent traveler, I value reliability and a clean cabin environment. I request that you investigate these matters immediately, provide an update on the status of my missing baggage, and outline how you intend to compensate for these failures in service. I look forward to your prompt response and a resolution to my lost luggage claim. Sincerely, Puguh

To the Ethiopian Airlines Customer Relations Team, I am writing to formally express my disappointment regarding my recent travel experience with Ethiopian Airlines on flight [I629/352] . Unfortunately, the level of service provided fell significantly short of the standards I expected from your airline. I would like to highlight the following serious issues encountered during the journey: • Cabin Condition and Hygiene: The aircraft cabin was notably poorly maintained. The seating area was dirty, and there was a persistent, unpleasant odor throughout the flight, which made the environment very uncomfortable for passengers. • Inadequate Service: The overall level of service provided by the staff was unsatisfactory and did not reflect a professional passenger experience. • Baggage Loss: Upon arrival, I was informed that my luggage was lost. This is particularly distressing as it has caused significant personal inconvenience and disruption to my schedule. As a frequent traveler, I value reliability and a clean cabin environment. I request that you investigate these matters immediately, provide an update on the status of my missing baggage, and outline how you intend to compensate for these failures in service. I look forward to your prompt response and a resolution to my lost luggage claim. Sincerely, Puguh

I will fly this going forward especially for ORD to EBB and the reverse.

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.

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..

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.