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Incheon Intl

$2,068+ Cheap flights from Islip (ISP) to Incheon Intl (ICN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — ICN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Islip to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Incheon Intl (ICN). 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 September 11, 2025.

Round-trip from

$2,068
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,200
From Islip Long Island to Incheon Intl
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Highest demand for flights based on searches. 8% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Islip to Incheon Intl

Cheapest flights from Islip to Incheon Intl
Explore the most affordable flight options available from Islip to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:58 pmISP - ICN
2 stops47h 22mMultiple Airlines
Sat 11/19:10 amICN - ISP
1 stop17h 14mMultiple Airlines
Deal found 9/10$2,068
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:30 amISP - ICN
1 stop20h 05mMultiple Airlines
Sun 11/29:20 pmICN - ISP
2 stops58h 22mMultiple Airlines
Deal found 9/11$2,119

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Incheon Intl 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Islip to Incheon Intl Airport that are best for you.

Fly from

Islip

Fly to

Incheon Intl

Route

Depart

Return

Price

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Sat 10/25

4:58 pm-5:20 am

2 stops47h 22m

Incheon Intl

Sat 11/1

9:10 am-1:24 pm

1 stop17h 14m

$2,068

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Sun 10/26

7:30 am-4:35 pm

1 stop20h 05m

Incheon Intl

Sun 11/2

9:20 pm-5:42 pm

2 stops58h 22m

$2,119

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Islip to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from Islip with our price prediction graph.
Estimated round-trip 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 Islip to Incheon Intl Airport

What is the cheapest month to book a flight from Islip to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Islip to Incheon Intl Airport (average of $990). Flying from Islip to Incheon Intl Airport in December is currently the most expensive (average of $1,633). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Islip to Incheon Intl?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Incheon Intl. You should not have trouble finding flights to Incheon Intl from Long Island; the airport handles an average of 0 outbound flights to Incheon Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Islip airport to Incheon Intl. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

  • Can I find deals for flights from Islip to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Islip to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Incheon Intl?

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

  • Can I find deals for business class flights from Islip to Incheon Intl?

    Yes. Cheapflights offers flight deals from Islip to Incheon Intl 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 Islip to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Islip to Incheon Intl Airport (average of $990). Flying from Islip to Incheon Intl Airport in December is currently the most expensive (average of $1,633). 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam
Daejeon

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