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$2,174+ Cheap flights from Islip, NY (ISP) to Seoul (SEL)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SEL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Islip to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Seoul (SEL). 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 July 3, 2025.

Round-trip from

$2,174
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,460
From Islip Long Island to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Islip to Seoul

Cheapest flights from Islip to Seoul
Explore the most affordable flight options available from Islip to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:37 pmISP - ICN
2 stops31h 13mMultiple Airlines
Fri 8/226:50 pmICN - ISP
2 stops36h 48mMultiple Airlines
Deal found 7/1$2,174

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Seoul 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 July 3, 2025.
Use the filters below to find and compare flights from Islip to Seoul that are best for you.

Fly from

Islip

Fly to

Seoul

Route

Depart

Return

Price

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Fri 8/15

8:37 pm-4:50 pm

2 stops31h 13m

Incheon Intl

Fri 8/22

6:50 pm-6:38 pm

2 stops36h 48m

$2,174

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Islip to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

What is the cheapest month to book a flight from Islip, New York to Seoul?

Currently, February is the cheapest month in which you can book a flight from Islip, New York to Seoul (average of $998). Flying from Islip, New York to Seoul in December is currently the most expensive (average of $1,635). 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 Seoul. 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 Seoul?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Seoul. You should not have trouble finding flights to Seoul from Long Island; the airport handles an average of 0 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Islip airport to Seoul. 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 Seoul that include hotel bookings?

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

  • How can I find direct flights from Islip to Seoul?

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

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

    Yes. Cheapflights offers flight deals from Islip to Seoul 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, New York to Seoul?

    Currently, February is the cheapest month in which you can book a flight from Islip, New York to Seoul (average of $998). Flying from Islip, New York to Seoul in December is currently the most expensive (average of $1,635). 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

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