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El Salvador

$878+ Cheap flights from Islip (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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SAL
Nov 5 — Nov 121
Wed 11/5
Wed 11/12
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 October 6, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$878
(Frontier)

Popular in

December

Cheapest in

May

Average price

$320
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. 21% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 6, 2025.

This Frontier deal was found by Cheapflights users on 10/5. 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.
Fri 12/199:09 pmISP - SAL
1 stop12h 57mFrontier
Sat 1/310:21 amSAL - ISP
1 stop8h 53mFrontier
Deal found 10/5$878
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
Tue 12/239:09 pmISP - SAL
1 stop20h 26mMultiple Airlines
Sun 1/411:15 amSAL - ISP
2 stops25h 30mMultiple Airlines
Deal found 10/5$1,115

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 October 6, 2025.
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

Fri 12/19

9:09 pm-9:06 am

1 stop12h 57m

San Salvador El Salvador Intl

Sat 1/3

10:21 am-8:14 pm

1 stop8h 53m

$878

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

Tue 12/23

9:09 pm-4:35 pm

1 stop20h 26m

San Salvador El Salvador Intl

Sun 1/4

11:15 am-1:45 pm

2 stops25h 30m

$1,115

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

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 to El Salvador?

Currently, October is the cheapest month in which you can book a flight from Islip to El Salvador (average of $92). Flying from Islip to El Salvador in August is currently the most expensive (average of $214). 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.

  • How long is the flight from Islip to El Salvador?

    Frontier can get you from Islip to El Salvador in just under 12h 57m. Your travel time can differ by up to . The distance between Islip and El Salvador is about 2119 mi.

  • 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 to El Salvador?

    Currently, October is the cheapest month in which you can book a flight from Islip to El Salvador (average of $92). Flying from Islip to El Salvador in August is currently the most expensive (average of $214). 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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