$270 Cheap Flights from Osaka (ITM) to Seoul (GMP)

View $270 flight on Sat, Feb 14, 2026Opens in a new window

Popular airlines from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)

Cheap Flights from Osaka to Seoul (ITM-GMP)

Prices were available within the past 7 days and start at $270 for one-way flights and $473 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Tue, Oct 6 - Wed, Oct 7
ITM
Osaka
GMP
Seoul
$473 Roundtrip, found 5 hours ago
$473
Roundtrip
found 5 hours ago
Select All Nippon Airways flight, departing Tue, Oct 6 from Osaka to Seoul, returning Wed, Oct 7, priced at $473 found 5 hours ago
Japan Airlines
Thu, Jan 15 - Sun, Jan 18
ITM
Osaka
GMP
Seoul
$473 Roundtrip, found 6 hours ago
$473
Roundtrip
found 6 hours ago
Select Japan Airlines flight, departing Thu, Jan 15 from Osaka to Seoul, returning Sun, Jan 18, priced at $473 found 6 hours ago
All Nippon Airways
Fri, Jun 19 - Fri, Jun 26
ITM
Osaka
GMP
Seoul
$477 Roundtrip, found 3 days ago
$477
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Fri, Jun 19 from Osaka to Seoul, returning Fri, Jun 26, priced at $477 found 3 days ago
All Nippon Airways
Wed, Feb 25 - Sun, Mar 1
ITM
Osaka
GMP
Seoul
$479 Roundtrip, found 2 hours ago
$479
Roundtrip
found 2 hours ago
Select All Nippon Airways flight, departing Wed, Feb 25 from Osaka to Seoul, returning Sun, Mar 1, priced at $479 found 2 hours ago
All Nippon Airways
Mon, Jun 8 - Fri, Jun 12
ITM
Osaka
GMP
Seoul
$483 Roundtrip, found 4 days ago
$483
Roundtrip
found 4 days ago
Select All Nippon Airways flight, departing Mon, Jun 8 from Osaka to Seoul, returning Fri, Jun 12, priced at $483 found 4 days ago
Japan Airlines
Tue, Apr 14 - Wed, Apr 15
ITM
Osaka
GMP
Seoul
$484 Roundtrip, found 3 days ago
$484
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Tue, Apr 14 from Osaka to Seoul, returning Wed, Apr 15, priced at $484 found 3 days ago
Japan Airlines
Thu, Jan 8 - Sat, Jan 10
ITM
Osaka
GMP
Seoul
$485 Roundtrip, found 4 hours ago
$485
Roundtrip
found 4 hours ago
Select Japan Airlines flight, departing Thu, Jan 8 from Osaka to Seoul, returning Sat, Jan 10, priced at $485 found 4 hours ago
All Nippon Airways
Thu, Aug 13 - Mon, Aug 17
ITM
Osaka
GMP
Seoul
$488 Roundtrip, found 6 days ago
$488
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Thu, Aug 13 from Osaka to Seoul, returning Mon, Aug 17, priced at $488 found 6 days ago
All Nippon Airways
Fri, Apr 10 - Sat, Apr 11
ITM
Osaka
GMP
Seoul
$489 Roundtrip, found 4 days ago
$489
Roundtrip
found 4 days ago
Select All Nippon Airways flight, departing Fri, Apr 10 from Osaka to Seoul, returning Sat, Apr 11, priced at $489 found 4 days ago
All Nippon Airways
Tue, Apr 7 - Mon, Apr 13
ITM
Osaka
GMP
Seoul
$490 Roundtrip, found 5 days ago
$490
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Tue, Apr 7 from Osaka to Seoul, returning Mon, Apr 13, priced at $490 found 5 days ago

Find the cheapest month to fly from Osaka (ITM) to Seoul (GMP)

March is typically the cheapest month to fly

From $438 - $527 per traveler.

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Average driving time to city center is 47 minutes. Flights from $1,328
ICN
Incheon Intl.
Average driving time to city center47 min
Flights from $1,328
Flights from Osaka (ITM) to Seoul (GMP)
Origin airport
Itami
Destination airport
Gimpo Intl.
Airlines serving
All Nippon Airways, Japan Airlines
Roundtrip price
$472
Distance
518 mi

Osaka to Seoul Flights

The cheapest times to fly from Osaka to Seoul

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 Osaka to Seoul are during the month of October. You can find some of the cheapest flights from Osaka to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Osaka to Seoul

Sunday is one of the best days to book for cheap flights from Osaka to Seoul: 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 Osaka to Seoul

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 Osaka to Seoul in 2026. You can also book with separate airlines for your outbound and return journeys, from $270 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 Osaka to Seoul 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 Osaka to Seoul 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.

 

Frequently asked questions

How much does a flight from Itami Airport (ITM) to Gimpo Intl. Airport (GMP) cost?
Lock in a cheap one-way flight from $270 or cheap return flight from $473 from Itami Airport (ITM) to Gimpo Intl. Airport (GMP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
October is the least expensive month to fly from ITM to GMP. Avoiding peak travel times is often the key to finding a great deal.
Which airlines fly direct from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
Although Osaka (ITM-Itami) doesn't have any direct flights to Gimpo Intl. Airport (GMP), other airports have nonstop options. Departing from Kansai Intl. Airport (KIX) will get you to Seoul without any detours.
What is the cheapest airline that flies from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from ITM to GMP. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
There aren't any daily direct flights available from Itami Airport (ITM) to Gimpo Intl. Airport (GMP). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from ITM to GMP?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
To avoid possible delays on the Itami Airport (ITM) to Gimpo Intl. Airport (GMP) route, fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Itami Airport (ITM) to Gimpo Intl. Airport (GMP) last-minute?
Booking your ticket from ITM to GMP shortly before your trip is typically more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an ITM to GMP flight and hotel package?
Opting for an ITM to GMP flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Itami Airport (ITM) to Gimpo Intl. Airport (GMP)?
If you reserved your ITM to GMP flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.