$676 Cheap Flights from Seoul (ICN) to Islip (ISP)

View $676 flight on Tue, Mar 17, 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP)

Cheap Flights from Seoul to Islip (ICN-ISP)

Prices were available within the past 7 days and start at $676 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP) cost?
Get a cheap one-way flight from $676 or cheap return flight from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP) 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 Incheon Intl. Airport (ICN) to MacArthur Airport (ISP)?
Traveling in is a great way to save, as it's the cheapest month for flights between ICN and ISP. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ICN to ISP flight.
How many flights per day from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP)?
You'll have to catch a flight with a layover if you're traveling from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ICN to ISP?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the time of year and carrier.*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 MacArthur Airport (ISP)?
To avoid possible delays on the Incheon Intl. Airport (ICN) to MacArthur Airport (ISP) route, travel before 3 PM. Later departures are 22% more likely to be 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.
What airports do you fly into for Islip from Incheon Intl. Airport (ICN)?
Browse your flight options from Incheon Intl. Airport (ICN) to John F. Kennedy Intl. Airport (JFK). This is the only airport in Islip you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP) last-minute?
Last-minute bookings from ICN to ISP are usually more expensive. To secure the lowest rates, start looking for flights early. That being said, if you're flexible with your travel plans, you may land a cheap ticket just before your departure.
Is it cheaper to book an ICN to ISP flight and hotel package?
Compared with arranging hotels and flights separately, booking an ICN to ISP flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Just pick your flights and choose from our wide range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to MacArthur Airport (ISP)?
In most instances, you can cancel or modify your ICN to ISP flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Origin airport
Incheon Intl.
Destination airport
MacArthur
Distance
6890 mi

Book with confidence

Seoul to Islip Flights

The cheapest times to fly from Seoul to Islip

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

 

The best time to book a flight from Seoul to Islip

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

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 Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $676 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 Islip 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 Islip 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.

 

Seoul to Islip Flights

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*Available to One Key members.