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Cheap flights from Islip, New York to Seoul from $1,326

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Seoul departing on 4/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Islip, New York to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:07 pm - 2:10 pm
ISP
-
ICN
57h 03m
2 stops
Multiple Airlines Logo
10:00 am - 9:13 am
ICN
-
ISP
36h 13m
2 stops
$1,326Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
8:45 pm - 5:15 am
ISP
-
ICN
43h 30m
2 stops
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$1,831Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
4:07 pm - 5:15 am
ISP
-
ICN
48h 08m
2 stops
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$1,903Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
9:38 am - 6:35 pm
ISP
-
ICN
43h 57m
2 stops
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$1,920Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
2:31 pm - 5:15 am
ISP
-
ICN
25h 44m
2 stops
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$1,970Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
2:31 pm - 5:15 am
ISP
-
ICN
25h 44m
2 stops
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$2,101Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
7:25 am - 4:25 pm
ISP
-
ICN
20h 00m
2 stops
Multiple Airlines Logo
11:30 am - 7:45 pm
ICN
-
ISP
21h 15m
2 stops
$6,378Multiple Airlines
Sat, Aug 15 - Sun, Aug 30
Multiple Airlines Logo
9:59 am - 5:25 pm
ISP
-
ICN
18h 26m
1 stop
Multiple Airlines Logo
9:30 am - 6:44 pm
ICN
-
ISP
22h 14m
1 stop
$22,012Multiple Airlines
Wed, Apr 15 - Wed, Apr 22

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated March 3, 2026.
Use the filters below to find and compare flights from Islip, New York to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Thu 4/16

4:07 pm-2:10 pm

2 stops57h 03m

Incheon Intl

Thu 4/23

10:00 am-9:13 am

2 stops36h 13m

$1,326

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Fri 4/17

8:45 pm-5:15 am

2 stops43h 30m

Incheon Intl

Fri 4/24

9:30 am-6:44 pm

1 stop22h 14m

$1,831

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Thu 4/16

4:07 pm-5:15 am

2 stops48h 08m

Incheon Intl

Thu 4/23

9:30 am-6:44 pm

1 stop22h 14m

$1,903

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Tue 4/14

9:38 am-6:35 pm

2 stops43h 57m

Incheon Intl

Tue 4/21

9:30 am-6:44 pm

1 stop22h 14m

$1,920

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Mon 4/13

2:31 pm-5:15 am

2 stops25h 44m

Incheon Intl

Mon 4/20

9:30 am-6:44 pm

1 stop22h 14m

$1,970

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Mon 4/13

2:31 pm-5:15 am

2 stops25h 44m

Incheon Intl

Mon 4/20

9:30 am-6:44 pm

1 stop22h 14m

$2,101

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Sat 8/15

7:25 am-4:25 pm

2 stops20h 00m

Incheon Intl

Sun 8/30

11:30 am-7:45 pm

2 stops21h 15m

$6,378

IslipIncheon

ISP - ICN

ISPICN

Islip Long Island

Wed 4/15

9:59 am-5:25 pm

1 stop18h 26m

Incheon Intl

Wed 4/22

9:30 am-6:44 pm

1 stop22h 14m

$22,012

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Seoul from

How to get the cheapest flight ticket from Islip, New York to Seoul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seoul?

According to our data, Tuesday is the cheapest day to fly to Seoul from Islip, New York. The lowest ticket price found for a Tuesday departure recently was $1,055. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,200.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from Islip, New York in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,056 when looking at flights departing in the morning. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,131 per ticket.

When to book flights from Islip, New York to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Seoul (ISP to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Seoul

Fastest flight time

20h 00m

Direct flights

None
The fastest flight from Islip, New York to Seoul takes 20h 00m
There are no direct flights from Islip, New York to Seoul. There are no popular flight routes from Islip, New York to Seoul.
Search flight deals

  • How far is Islip Long Island to Seoul by plane?

    Islip Long Island and Seoul are 6874.4 mi apart from one another. Typically, this will take 20h 00m by plane in normal conditions.

  • When did momondo last update prices for flights from Islip Long Island Airport to Seoul?

    Prices for flights from Islip Long Island Airport to Seoul are refreshed on a daily basis.

  • How old do you have to be to fly from Islip Long Island Airport to Seoul?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The required travel and health documents for your Seoul trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seoul. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Seoul?

It is quick and easy to find Islip to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

Can I find flights from Islip to Seoul with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Islip to Seoul flights to just show those with flexible booking policies.

How can momondo help me find flights from Islip to Seoul?

Once you have performed a search for Islip to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Seoul right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seoul from Islip. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Thu 4/2
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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport