$84 Find Cheap Flights from Japan to South Korea - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Japan to South Korea departing on 9/30. 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 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?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

The cheapest ticket to South Korea from Japan found in the last 5 days was to Busan, at $94 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 $99.

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 $274 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 Tokyo to Seoul which costs $273 on average, and Tokyo to Seoul, which costs $358 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 September, when tickets cost $99 (return) on average. On the other hand, the most expensive months are October and February, when the average cost of round-trip tickets is $225 and $190 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 round-trip flights cost $301 on average. Morning departures are around 57% 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 $770.

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 the flight from Japan to South Korea, you should book around 8 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 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 $157.

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Good to know

Low seasonJanuary
Cheapest flight$84
Best time to beat the crowds but there is an average 8% 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 
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 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 $294. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are $442 on average.

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 Koreafrom $243
Business Class flights to South Koreafrom $266
Premium Economy Class flights to South Koreafrom $269
Economy Class flights to South Koreafrom $84