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El Salvador

$618+ Cheap flights from Islip, NY (ISP) to El Salvador

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SAL
feb. 11 — feb. 181
mié. 2/11
mié. 2/18
1 adult, Economy
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Cheap flight deals from Islip to El Salvador

Keep the following information in mind while searching for Islip to El Salvador flight deals. Data was last updated enero 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$618
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$396
Provider with most accurate pricing for New York (NYC)-San Salvador El Salvador Intl flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-San Salvador El Salvador Intl flights.
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From Islip Long Island to El Salvador
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Highest demand for flights based on searches. 16% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Islip to El Salvador

Cheapest flights from Islip to El Salvador
Explore the most affordable flight options available from Islip to El Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
mié. 2/259:33 am
ISP
-
SAL
2 stops30h 23m
Multiple Airlines
mié. 3/47:45 am
SAL
-
ISP
1 stop9h 59m
Multiple Airlines
Deal found 1/11$618
This Expedia deal was found by Cheapflights users on 1/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/69:43 pm
ISP
-
SAL
1 stop15h 38m
Multiple Airlines
mié. 2/188:00 am
SAL
-
ISP
2 stops49h 02m
Multiple Airlines
Deal found 1/10$756
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
dom. 2/159:59 am
ISP
-
SAL
1 stop11h 16m
Multiple Airlines
jue. 2/198:00 am
SAL
-
ISP
2 stops28h 31m
Multiple Airlines
Deal found 1/11$906
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
dom. 2/159:59 am
ISP
-
SAL
1 stop11h 16m
Multiple Airlines
dom. 2/224:02 pm
SAL
-
ISP
2 stops14h 36m
Multiple Airlines
Deal found 1/11$915
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
dom. 2/159:59 am
ISP
-
SAL
1 stop11h 16m
Multiple Airlines
lun. 2/2310:20 pm
SAL
-
ISP
2 stops33h 20m
Multiple Airlines
Deal found 1/11$928
This Frontier deal was found by Cheapflights users on 1/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/137:59 pm
ISP
-
SAL
2 stops18h 12m
Frontier
dom. 2/152:16 pm
SAL
-
ISP
2 stops16h 22m
Frontier
Deal found 1/11$935
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
lun. 2/163:34 pm
ISP
-
SAL
2 stops24h 22m
Multiple Airlines
lun. 2/237:45 am
SAL
-
ISP
1 stop9h 59m
Multiple Airlines
Deal found 1/11$941
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
vie. 2/138:45 pm
ISP
-
SAL
2 stops43h 11m
Multiple Airlines
lun. 2/237:45 am
SAL
-
ISP
1 stop9h 59m
Multiple Airlines
Deal found 1/11$995
This Frontier deal was found by Cheapflights users on 1/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/137:59 pm
ISP
-
SAL
2 stops18h 12m
Frontier
dom. 2/222:16 pm
SAL
-
ISP
2 stops16h 22m
Frontier
Deal found 1/11$1,014
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
sáb. 2/1411:50 am
ISP
-
SAL
2 stops26h 21m
Multiple Airlines
lun. 2/237:45 am
SAL
-
ISP
1 stop9h 59m
Multiple Airlines
Deal found 1/11$1,015

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to El Salvador 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 enero 12, 2026.
Use the filters below to find and compare flights from Islip to El Salvador that are best for you.

Fly from

Islip

Fly to

El Salvador

Route

Depart

Return

Price

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

mié. 2/25

9:33 am-2:56 pm

2 stops30h 23m

San Salvador El Salvador Intl

mié. 3/4

7:45 am-6:44 pm

1 stop9h 59m

$618

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

vie. 2/6

9:43 pm-12:21 pm

1 stop15h 38m

San Salvador El Salvador Intl

mié. 2/18

8:00 am-10:02 am

2 stops49h 02m

$756

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

dom. 2/15

9:59 am-8:15 pm

1 stop11h 16m

San Salvador El Salvador Intl

jue. 2/19

8:00 am-1:31 pm

2 stops28h 31m

$906

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

dom. 2/15

9:59 am-8:15 pm

1 stop11h 16m

San Salvador El Salvador Intl

dom. 2/22

4:02 pm-7:38 am

2 stops14h 36m

$915

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

vie. 2/13

7:59 pm-1:11 pm

2 stops18h 12m

San Salvador El Salvador Intl

dom. 2/15

2:16 pm-7:38 am

2 stops16h 22m

$935

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

lun. 2/16

3:34 pm-2:56 pm

2 stops24h 22m

San Salvador El Salvador Intl

lun. 2/23

7:45 am-6:44 pm

1 stop9h 59m

$941

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

vie. 2/13

7:59 pm-1:11 pm

2 stops18h 12m

San Salvador El Salvador Intl

dom. 2/22

2:16 pm-7:38 am

2 stops16h 22m

$1,014

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

sáb. 2/14

11:50 am-1:11 pm

2 stops26h 21m

San Salvador El Salvador Intl

lun. 2/23

7:45 am-6:44 pm

1 stop9h 59m

$1,015

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

lun. 2/16

9:59 am-8:15 pm

1 stop11h 16m

San Salvador El Salvador Intl

jue. 2/19

8:00 am-1:31 pm

2 stops28h 31m

$1,073

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Best time to book a flight from Islip to El Salvador

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

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

Currently, October is the cheapest month in which you can book a flight from Islip, New York to El Salvador (average of $93). Flying from Islip, New York to El Salvador in July is currently the most expensive (average of $205). 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 El Salvador. 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 El Salvador?

    For a flight from Islip to El Salvador, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.

  • Can I find deals for flights from Islip to El Salvador that include hotel bookings?

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

  • How can I find direct flights from Islip to El Salvador?

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

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

    Yes. Cheapflights offers flight deals from Islip to El Salvador 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 El Salvador?

    Currently, October is the cheapest month in which you can book a flight from Islip, New York to El Salvador (average of $93). Flying from Islip, New York to El Salvador in July is currently the most expensive (average of $205). 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

Browse thousands of different options on Cheapflights for your next trip

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