$91 Find Cheap Flights from South Korea to Japan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from South Korea to Japan departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Booking Insights

KAYAK's insights & trends for flights to Japan

Get data-powered insights and trends into 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 Tokyo Narita Airport, at $80 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 $97.

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 July, when tickets cost $104 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is $285 and $196 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 afternoon, when retur flights cost $293 on average. Morning departures are around 13% 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 $362.

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 a flight from South Korea to Japan, you should book around 10 weeks before departure, which saves you about 21% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 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 Hiroshima Airport (HIJ), with an average flight price of $101.

Good to know

Low seasonMarch
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (22% more expensive on average)

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

Insights shared by verified travellers who flew the route from South Korea to Japan 
Verified travelerFlew with Japan Airlines
GMP
-
HND
May 2026
Side bag with what you need keep with you because they could have geriatric people sitting there and you can't get to your bag up above
Verified travelerFlew with Asiana Airlines
ICN
-
OKA
Aug 2024
If you have to switch from Terminal 2 to Terminal 1 it is a bit of a hassle. That needs to be fixed. I should not have to go through two separate security checks after landing in the transfer areas.

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 Thursday when return tickets can be as cheap as $223. On the other hand, the most expensive day to fly is Saturday, when return prices are $366 on average.

Reviews of the top 5 airlines flying 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.
8.6
Jin AirOverall score based on 23 reviews
8.9Boarding
7.6Entertainment
8.0Comfort
7.8Food
9.2Crew
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

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

Aircraft is pretty old. Seat is not comfortable. Meal quality is disappointing. Entertainment system is not impressive at all.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

Good budget airline. Disappointed zipair membership program doesn't let you transfer your 30% discount to your family members.

Punctuality is a great factor. Boarding, departing and landing in timely fashion. No hazles and very profesional service in land and during the flight. Great experience.

Wifi never really worked. Flight attendants were generally fine except when they were not very helpful when my wife accidentally spilled a soda (they chastised her to apologize to the people sitting behind when it was dark and we couldn't see anything and they brought one tiny napkin to help clean it up). Seats were uncomfortable for all four of us. Otherwise a typical flight.

Seats in economy might too narrow. people sitting next to each other is always hitting shoulders.

Easy to board and fly, no frills. Yummy ramen on board.

It was for the most part a 10/10 they said they had entertainment options but all they had was old movies for streaming from the mid 2010’s so like 10 years ago

all good for a very budget flight - well priced and excellent service. Will fly again

Couple of the crew members were really nice and the rest are really rude and didn't help when we needed help, food was not worth it at all and most importantly there's no even entertainment system other than a very interruptive and slow internet and some movies.

I appreciate the economy price of the tickets. The long flight made the comfort level on the lower average side. Wi-Fi connection was not consistent but working. Overall, I would fly again with zip air but next time get the flat, premium seats with the amount of money I would save otherwise.

Comfortable seats and lucky no one was in middle seat. No water on the plane. Plane was on time and staff was fast.

Amazing experience, tonnes of leg room, great crew and smooth flight. Especially for this price for business class.

Great Value with Tway Airlines I highly recommend flying with Tway Airlines—especially if you're looking for a budget-friendly option. While the lowest fare comes with limited luggage allowance, it suited me perfectly since I was traveling light. Check-in and boarding were impressively fast and hassle-free. The ground staff and cabin crew were exceptionally polite and courteous throughout the journey. Although the aircraft was an older model and lacked inflight entertainment, this was a minor trade-off considering the ticket cost was nearly 70% lower than typical fares on the ICN–FRA route. If you're focused on value and efficiency over luxury, Tway delivers a smooth and pleasant experience.

I liked cleanliness, comfort, kind staff. I thought communication about meals could be better. We did not know how we were supposed to ensure we had food and drinks in our booking

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.

Thanks to the kind staff for locating my lost onamori.

Quite ordinary, as might be expected of a budget flight. It was difficult to understand the instructions unless one speaks Japanese, and the seats were quite basic.

Very easy process overall. The staff communicated well and everything was efficient.

Very affordable, smooth check in process, flight attendants were safe and kind, lots of flight availability within Japan.

The seat is so bad Can’t recline the chair

For Travelers with babies, if they can be supported by allowing to carry the Baby stroller upto the Airplane gate, and not submit at the Check-In counter. it will be very convenient. Thankyou.

I didn’t even fly on it can I get my refund

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.