$49 Cheap Flights from Seoul (ICN) to Osaka (KIX)

Seoul (ICN) to Osaka (KIX) at a glance

Travel between Seoul (ICN) and Osaka (KIX) with a range of airlines catering to this popular international short-haul route. Explore options from both full-service and budget carriers to identify the best itinerary that aligns with your budget and schedule while you enjoy the vibrant sights and neighborhoods of Osaka. Discover essential information for your flights from Incheon International Airport (ICN) to Kansai International Airport (KIX), making your travel planning seamless.

• Fastest flight duration: around 1h 45m non-stop
• Route distance: roughly 500 miles (800 km)
• Flights per week: around 20+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $60–$240, depending on seasonality and how far ahead you book

Flights from Incheon International Airport (ICN) to Kansai International Airport (KIX)

Based on the latest traveler bookings, here are the top airlines favored for non-stop flights from Seoul to Osaka. These options allow you to compare prices, total travel times, and cabin classes, helping you craft the ideal itinerary that suits your travel needs.

• Asiana Airlines: This comprehensive airline provides non-stop flights, with one-way prices generally between $80 and $275. It makes up about 31% of the departures for this route, with a total travel duration of 1 hour and 45 minutes.
• Korean Air: Another full-service airline offering direct flights, Korean Air's one-way fares typically fall in the range of $85 to $300. It constitutes nearly 29% of the departures on this route, also taking 1 hour and 45 minutes to complete the journey.
• Jeju Air: As a budget airline, Jeju Air provides non-stop service with one-way ticket prices usually ranging from $80 to $245. It accounts for around 15% of the departures on this route, maintaining a total flight time of 1 hour and 45 minutes.
• Aero K: This low-cost carrier offers non-stop flights with one-way fares typically priced between $60 and $220. It represents about 12% of the departures on this route, with a journey time of 1 hour and 45 minutes.
• T'way Air with baggage: Offering budget-friendly non-stop service, T'way Air's one-way fares usually range from $80 to $230. It covers approximately 6% of the departures on this route, with a total travel time of 1 hour and 45 minutes.

Travelers have the option to elevate their experience on flights from Seoul to Osaka by upgrading to business class, with top carriers including Asiana Airlines, Korean Air, and Japan Airlines.

Best time to fly from Seoul (ICN) to Osaka (KIX)

The most popular months for travelers flying from Seoul to Osaka are March, April, and June, when peak temperatures in Osaka reach up to 72°F in June. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 81.9°F. For better deals, July usually offers the lowest average one-way fare around $116. Flight availability peaks in October, with approximately 27 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 10 flights per week.

• Cheapest time to fly: July usually offers good deals with average one-way fare around $116, roughly 23% cheaper than the yearly average.
• More budget-friendly months to fly: August, June, and September typically offer average one-way fares of around $123.
• Most flight options: October has the highest number of flights from Seoul to Osaka, with approximately 27 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Seoul (ICN) to Osaka (KIX)

• Seoul to Osaka (GMP-KIX): Gimpo International Airport (GMP) is located approximately 21 miles from Incheon International Airport (ICN). One-way economy ticket prices for this journey generally fall between $80 and $245, influenced by the time of year and when the booking is made. This route features both non-stop and one-stop flight options. Major airlines operating on this route include Korean Air and Asiana Airlines. Additionally, there are business class service options available.

How to find the best prices for flights from Seoul (ICN) to Osaka (KIX)

Getting some of the best deals on flights from Seoul to Osaka is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are often found when booking within two weeks, although most travelers typically book two to eight weeks in advance. Evening departures from 6 PM to 12 AM usually offer lower prices, while morning flights from 5 AM to 12 PM are more popular. Additionally, flying on Wednesday tends to be cheaper, but Monday remains the most popular travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Kansai International Airport from Incheon International Airport

Osaka welcomes travelers from Seoul with a range of transport options based on price, convenience, and proximity. Osaka city center is approximately a 50-minute drive (covering about 32 miles) from Kansai International Airport, depending on traffic. Here's how to reach Osaka efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Osaka, with private rides that can be arranged in advance.
• Car rental: Renting a car from Kansai International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Kansai International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Kansai International Airport, Kansai Airport Station (a train station) is just a short 0.1-mile walk away, while Hineno Station (a metro station) is located about 8.6 miles from the airport and is typically accessed by car.

Seoul to Osaka Flights

The cheapest times to fly from Seoul to Osaka

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Osaka are during the month of September. You can find some of the cheapest flights from Seoul to Osaka with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seoul to Osaka

Sunday is one of the best days to book for cheap flights from Seoul to Osaka: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Seoul to Osaka

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Osaka in 2026. You can also book with separate airlines for your outbound and return journeys, from $49 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Osaka flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Osaka airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.