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Cheap flights from Osaka to Seoul from $128

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — SEL
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Osaka to Seoul are usually found in July or August, booked 80 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Osaka to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Osaka to Seoul
Explore the most affordable flight options available from Osaka to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 December 2025.

Tue 16/1217:00KIX - ICN
Nonstop2h 05mJeju Air
Mon 22/1210:15ICN - KIX
Nonstop1h 50mJeju Air
Deal found 14/12$253
Wed 17/1209:00KIX - ICN
Nonstop2h 00mJeju Air
Thu 18/1214:10ICN - KIX
Nonstop1h 40mJeju Air
Deal found 15/12$295
Sat 20/1211:50KIX - ICN
Nonstop2h 00mJeju Air
Thu 25/1219:10ICN - KIX
Nonstop1h 45mJeju Air
Deal found 15/12$298
Sun 21/1209:00KIX - ICN
Nonstop2h 00mJeju Air
Tue 23/1207:00ICN - KIX
Nonstop2h 00mJeju Air
Deal found 16/12$299
Fri 19/1209:50KIX - ICN
Nonstop2h 00mJeju Air
Mon 22/1208:05ICN - KIX
Nonstop1h 35mJeju Air
Deal found 14/12$305
Wed 24/1211:05KIX - ICN
Nonstop2h 05mJin Air
Fri 26/1215:00ICN - KIX
Nonstop1h 50mJin Air
Deal found 15/12$310
Wed 17/1210:50KIX - ICN
Nonstop2h 00mJeju Air
Sat 20/1214:10ICN - KIX
Nonstop1h 40mJeju Air
Deal found 14/12$313
Sat 20/1215:40KIX - ICN
Nonstop2h 15mT'way Air
Thu 25/1215:50ICN - KIX
Nonstop2h 00mT'way Air
Deal found 16/12$317
Tue 16/1210:50KIX - ICN
Nonstop2h 00mJeju Air
Thu 18/1207:00ICN - KIX
Nonstop2h 00mJeju Air
Deal found 15/12$319
Wed 24/1211:05KIX - ICN
Nonstop2h 05mJin Air
Sat 27/1215:00ICN - KIX
Nonstop1h 50mJin Air
Deal found 15/12$324

Find flight deals from Osaka to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Osaka (OSA) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 December 2025.

Round-trip from

$226

One-way from

$128

Popular in

October

Cheapest in

July

Average price

$316

Good round-trip deal

$242 or less

Good one-way deal

$101 or less
Peach
  • Peach
  • 28/1-4/2
  • Nonstop
  • 3h 50m total
  • Osaka to Seoul
Search Deals
Jeju Air
  • Jeju Air
  • 15/1
  • Nonstop
  • 2h 00m total
  • Osaka to Seoul
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Osaka (OSA) to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from Osaka (OSA) to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Osaka to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 16 December 2025.
Use the filters below to find and compare flights from Osaka to Seoul that are best for you.

Fly from

Osaka

Fly to

Seoul

Route

Depart

Return

Price

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Thu 26/2

11:15-13:25

Nonstop2h 10m

Incheon Intl

Thu 5/3

15:50-17:50

Nonstop2h 00m

$250

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Sat 16/5

11:00-12:50

Nonstop1h 50m

Incheon Intl

Sat 16/5

16:05-18:00

Nonstop1h 55m

$310

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Tue 13/1

09:00-10:50

Nonstop1h 50m

Incheon Intl

Fri 16/1

19:05-20:55

Nonstop1h 50m

$310

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Mon 18/5

09:10-11:00

Nonstop1h 50m

Incheon Intl

Sun 31/5

07:55-09:40

Nonstop1h 45m

$331

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Fri 9/1

09:00-11:00

Nonstop2h 00m

Incheon Intl

Sat 10/1

19:10-20:55

Nonstop1h 45m

$334

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Sat 16/5

12:30-20:45

1 stop8h 15m

Incheon Intl

Sat 16/5

23:40-14:55

1 stop15h 15m

$336

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Sun 1/3

11:05-13:10

Nonstop2h 05m

Incheon Intl

Tue 3/3

12:00-13:50

Nonstop1h 50m

$354

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Wed 7/1

12:30-21:10

1 stop8h 40m

Incheon Intl

Fri 9/1

21:10-11:25

1 stop14h 15m

$376

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Thu 15/1

09:00-11:00

Nonstop2h 00m

$128

OsakaIncheon

KIX - ICN

KIXICN

Osaka Kansai Intl

Tue 9/6

11:00-12:50

Nonstop1h 50m

$134

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 18 results
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Best time to book a flight from Osaka to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Osaka with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Osaka to Seoul

How far ahead should I book a flight from Osaka to Seoul?

Use this chart to determine the optimal time to book a return flight from Osaka to Seoul. Price data was last updated on 12 December 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Osaka to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Osaka to Seoul?

Currently, June is the cheapest month in which you can book a flight from Osaka to Seoul (average of $57). Flying from Osaka to Seoul in February is currently the most expensive (average of $238). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OSA to SEL?

Find hourly flight availability from Osaka to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 December 2025.

A simple way to save on the total cost of your ticket is to fly from Osaka to Seoul in the evening. If you’re flexible enough to do this you can expect to save up to 74% on your trip compared to booking a flight in the afternoon.

Weekly flight availability from Osaka to Seoul

Explore weekly flight availability from Osaka to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 December 2025.

The most flights from OSA to SEL are scheduled on a Monday (75 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (64 on average).

How much does it cost for a return flight from Osaka to Seoul?

How often are flights from Osaka to Seoul delayed?

About 5% of weekly flights between Osaka and Seoul have experienced delays in the past year, with the average delay time being 99 minutes.

What is the most punctual flight time for Osaka to Seoul flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Osaka to Seoul flights?

Over the past year, Peach have had the lowest number of delays on this route, with just 4% of flights being delayed.

Related info for your journey

Find useful and relevant information for your journey from Osaka to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Osaka to Seoul?

    For as low as $310, T'way Air can have you in Seoul from Osaka in 1h 50m. There are 858 km between Osaka and Seoul. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Osaka to Seoul one-way?

    The cheapet airlines for a one-way flight from Osaka to Seoul are Eastar Jet ($87), T'way Air ($89), and Jeju Air ($91).

  • What are the most reliable airlines from Osaka to Seoul?

    Before booking your flight to Seoul from Osaka, have a look at the most reliable airlines to get you to your destination on time: Air France (100%), ITA Airways (100%), Virgin Atlantic( 100%).

  • What are the cheapest flights from Osaka to Seoul?

    Looking at all options, your cheapest flight can be booked for $77. While the most popular route (Osaka Kansai Intl - Incheon Intl) can be booked for $478 on average, our data indicates $205 when flying from Osaka to Seoul.

  • Can I find deals for flights from Osaka to Seoul that include hotel bookings?

    Yes. In addition to deals on Osaka to Seoul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Osaka to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka to Seoul.

  • Can I find deals for business class flights from Osaka to Seoul?

    Yes. Cheapflights offers flight deals from Osaka to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Osaka to Seoul?

    Currently, June is the cheapest month in which you can book a flight from Osaka to Seoul (average of $57). Flying from Osaka to Seoul in February is currently the most expensive (average of $238). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Osaka to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Kansai Intl to Incheon Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Osaka to Seoul?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Osaka to Seoul. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Osaka to Seoul?

Cheapflights helps you find that perfect flight to Seoul from Osaka by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Osaka to Seoul with no change fees?

Certainly. Search results for flights to Seoul from Osaka shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Osaka to Seoul become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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