In terms of precipitation, rainfall in El Salvador ranges from 0.0 - 13.0 inches per month. August is typically the wettest month, when rainfall can reach 13.0 in. February is typically the driest time to visit El Salvador when rainfall is around 0.0 in.

If weather is an important factor for your trip to El Salvador, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

How far in advance should I book a flight from Islip, New York to El Salvador?

Users have found that booking a flight from Islip, New York to El Salvador at least 61 days early can save you up to 50% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Islip, New York to El Salvador for as little as $419 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $472 for flights departing within the next 3 days.

What is the cheapest month to fly from Islip, New York to El Salvador?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to El Salvador. Flights to El Salvador from Islip, New York in September are about $378 on average during September, but can be found for as low as $113.

What is the cheapest time of day to fly from ISP to SV?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to El Salvador as you normally would.

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.

$573+ Flights from Islip, NY to El Salvador

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Cheap flight deals from Islip to El Salvador

Round-trip from	$573 (FlightHub)
Popular in	December
Cheapest in	September
Average price	$401

From Islip Long Island to El Salvador

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($89 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% 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 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 julio 30, 2025.

jue. 8/216:05 amISP - SAL

2 stops42h 29mFrontier

lun. 8/2511:44 pmSAL - ISP

2 stops22h 15mFrontier

Deal found 7/29

$573

Best flights from Islip to El Salvador
Discover carefully curated flight deals from Islip to El Salvador that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 30, 2025.

jue. 8/216:05 amISP - SAL

2 stops42h 29mFrontier

lun. 8/2511:44 pmSAL - ISP

2 stops22h 15mFrontier

Deal found 7/29

$573

Last-minute flights from Islip to El Salvador
Discover last-minute flight deals from Islip to El Salvador. Data last updated julio 30, 2025 and is based on user searches.

jue. 8/216:05 amISP - SAL

2 stops42h 29mFrontier

lun. 8/2511:44 pmSAL - ISP

2 stops22h 15mFrontier

Deal found 7/29

$573

Fly from

Fly to

Route

Depart

Return

Price

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

jue. 8/21

6:05 am-10:34 pm

2 stops42h 29m

San Salvador El Salvador Intl

lun. 8/25

11:44 pm-11:59 pm

2 stops22h 15m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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, September is the cheapest month in which you can book a flight from Islip, New York to El Salvador (average of $260). Flying from Islip, New York to El Salvador in December is currently the most expensive (average of $588). 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.

Reviews of airlines servicing El Salvador

Read through reviews of airlines operating flights from Islip to El Salvador, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Frontier

5.9

Fair

3,237 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Frontier

5.9

Fair

3,237 reviews

Frontier

5.9

Fair

3,237 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2025

TTN - TPA

Related info for your journey

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, September is the cheapest month in which you can book a flight from Islip, New York to El Salvador (average of $260). Flying from Islip, New York to El Salvador in December is currently the most expensive (average of $588). 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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$573+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to El Salvador with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 julio 30, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Islip to El Salvador

Cheapest flights from Islip to El SalvadorExplore 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 julio 30, 2025.

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 julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to El Salvador that are best for you.

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.

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?

Reviews of airlines servicing El Salvador

Read through reviews of airlines operating flights from Islip to El Salvador, such as Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to El Salvador

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 julio 30, 2025.