Cheap Flights from Seoul (ICN) to Oshima (OIM)

Popular airlines from Incheon Intl. Airport (ICN) to Oshima Airport (OIM)

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Flights from Seoul (ICN) to Oshima (OIM)
Origin airport
Incheon Intl.
Destination airport
Oshima
Distance
743 mi

Seoul to Oshima Flights

The cheapest times to fly from Seoul to Oshima

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

 

The best time to book a flight from Seoul to Oshima

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

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 Oshima in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Oshima 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 Oshima 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 Incheon Intl. Airport (ICN) to Oshima (OIM) cost?
Grab a cheap one-way flight or cheap return flight from Incheon Intl. Airport (ICN) to Oshima (OIM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Oshima (OIM)?
The cheapest month to fly from ICN to OIM is , when there's less demand. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Oshima (OIM)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest ICN to OIM flight.
How many flights per day from Incheon Intl. Airport (ICN) to Oshima (OIM)?
Direct flights from Incheon Intl. Airport (ICN) to Oshima (OIM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ICN to OIM?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Incheon Intl. Airport (ICN) to Oshima (OIM)?
To avoid potential delays on the Incheon Intl. Airport (ICN) to Oshima (OIM) route, aim to travel before 3 PM. Departures after this hour 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 Incheon Intl. Airport (ICN) to Oshima (OIM) last-minute?
Waiting until just before your departure to book a ticket from ICN to OIM generally means paying more. While you might find some last-minute deals, there's no guarantee. Be flexible with your travel plans for a better chance of snagging a bargain.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Oshima (OIM)?
If you booked your ICN to OIM flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.