$46 Find Cheap Flights from South Korea to Japan - Compare and Save

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Cheap Flights from South Korea to Japan

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Fukuoka
0h 55mNonstop
from $93per person
Osaka
1h 00mNonstop
from $115per person
Hiroshima
1h 40mNonstop
from $116per person
Nagoya
1h 30mNonstop
from $160per person
Kobe
1h 50mNonstop
from $162per person
Tokyo
2h 00mNonstop
from $171per person
Okinawa
2h 20mNonstop
from $205per person
Sapporo
2h 30mNonstop
from $237per person
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Booking Insights

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?

The cheapest ticket to Japan from South Korea found in the last 5 days was to Fukuoka, at $58 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 5 days was $109.

How much is a flight to Japan?

A flight to Japan costs $183 on average. The cheapest price found on KAYAK in the last 2 weeks was $34 for the route Busan (PUS) to Sapporo Chitose Airport (CTS). The most popular routes on KAYAK are Busan to Fukuoka which costs $202 on average, and Daegu to Osaka, which costs $169 on average.

See prices from:

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

The cheapest month for flights from South Korea to Japan is August, when tickets cost $78 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is $198 and $137 respectively.

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 $228 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 $318.

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

To get a below average price on the flight from South Korea to Japan, you should book around 10 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 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 Nagasaki Airport (NGS), with an average flight price of $43.

Good to know

Low season

March

Cheapest flight

$46
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Busan to Fukuoka

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

Insights shared by verified travelers who flew the route from South Korea to Japan 
Verified travelerFlew with Japan Airlines-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-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 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 $233. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $286 on average.

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.
9.3
Eastar JetOverall score based on 3 reviews
9.3Boarding
4.6Food
4.6Entertainment
8.6Comfort
8.6Crew
Airline reviews

Great airline. Our bus to the terminal got delayed, but there was no problem to check in last minute. Super friendly terminal staff.

10.0 ExcellentFiruz, Sep 2025
Read more Eastar Jet reviews

Great airline. Our bus to the terminal got delayed, but there was no problem to check in last minute. Super friendly terminal staff.

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

Just good - short flight. Not much happens. Left on time and arrived on time.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

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

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.

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.

More options for your flight to Japan

Complete your trip to Japan with a hotel stay or car rental