$87 Find Cheap Flights from Japan to South Korea - Compare and Save

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KAYAK's insights & trends for flights to South Korea

Get data-powered insights and trends for 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?

The cheapest ticket to South Korea from Japan found in the last 5 days was to Incheon Intl Airport, at $76 round-trip. The most popular route is Sapporo Chitose Airport (CTS) to Incheon Intl Airport (ICN) and the cheapest round-trip airline ticket found on this route in the last 5 days was $76.

How much is a flight to South Korea?

A flight to South Korea costs $313 on average. The cheapest price found on KAYAK in the last 2 weeks was $34 for the route Omitama (IBR) to Incheon Intl Airport (ICN). The most popular routes on KAYAK are Osaka to Seoul which costs $342 on average, and Okinawa to Seoul, which costs $1,334 on average.

See prices from:

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

The cheapest month for flights from Japan to South Korea is June, when tickets cost $110 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is $227 and $190 respectively.

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

The cheapest time of day to fly to South Korea is generally at night, when round-trip flights cost $368 on average. Morning departures are around 25% cheaper than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $837.

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

To get a below average price on the flight from Japan to South Korea, you should book around 3 weeks before departure, which saves you about 6% 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 Busan Gimhae Airport (PUS), with an average flight price of $186.

Good to know

Low season

January

Cheapest flight

$87
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Osaka to Seoul Incheon Airport

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

Insights shared by verified travelers who flew the route from Japan to South Korea 
Verified travelerFlew with Asiana Airlines-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-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-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 travelers 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 round-trip 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 Thursday where round-trip tickets can be as cheap as $296. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $467 on average.

Reviews of the top 5 airlines serving 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
7.6Entertainment
8.9Boarding
7.8Food
8.0Comfort
9.2Crew
Airline reviews

I like the landing which is nice and safe, seats are also comfortable

10.0 ExcellentAnonymous, Apr 2025
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

Excellent. All well and accommodating. Clean and very good food. Peaceful travel experience

The food wasn't to good but the crews were great, clean plan clean bathrooms always

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

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

I enjoyed flying on Korean Air. The service was great and the food was yummy, especially the bibimbap and cold spicy noodles. The only thing that bummed me out on this red-eye flight was that my seat did not properly recline so I was not able to sleep.

Waited a long time at JFK to board with no information being readily available.Left about 45 minutes late and it was 2:45 AM in JFK.Nothing todo. Second deck of the Airbus is more comfortable or seems that way because there is less people. Food was OK. The food on secondleg was better as we had ordered it before hand. We thought we had did that on the long first leg but we were told we did not. Cabin crew was generally nice. There are people who lean back when eating as they wait for food to be delivered and know no one will check -- drag. TV selection was awful movies OK. Comfortable all in all.

Not enough seat cushion. Butt was hurting especially on long flight. Not enough movie selection. Entertainment was outdated. Coffee served was cold. Other than that flight was good.

I was very surprised that a meal was given on such a relatively short flight. the meal was FANTASTIC. The crew were also very attentive to our specific needs and we would be happy to fly and recommend your airline to our friends.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

Typical Asian airline - flight attendants like robots - start food orders at first row and get to the last row right aisle last - no food selections left. 30 minutes before landing demanding everyone put seats back into upright position, window shades open and God forbid you might have to use the restroom a full 30 minutes left into a 1 hour 45 minute flight. At least the flight was cheap - but that’s the best I can say about it.

Everything is good, the only issue is the aircraft need to be upgraded

Ok, the flight was late and the plane was old. The check in crew in Narita were amazing however.

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.

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.

Everything you need to know for your flight to South Korea

Cabin class types available on flights to South Korea