When did momondo last update prices for flights from Islip Long Island Airport to Costa Rica?

Prices for flights from Islip Long Island Airport to Costa Rica refresh daily.

How old do you have to be to fly from Islip Long Island Airport to Costa Rica?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

The travel and health documents required for your trip to Costa Rica can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Costa Rica. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$314 Cheap Flights from Islip, New York to Costa Rica in 2026/27

Find the cheapest flights from Islip, New York to Costa Rica

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:15 pmISP Islip Long Island-LIR Liberia

7h 15m1 stop Baltimore/Washington

1:00 pm - 11:45 pmLIR Liberia-ISP Islip Long Island

9h 45m1 stop Baltimore/Washington

$618Southwest

Sat, Nov 14 - Sat, Nov 21

6:00 am - 12:15 pmISP Islip Long Island-LIR Liberia

7h 15m1 stop Baltimore/Washington

1:05 pm - 11:45 amLIR Liberia-ISP Islip Long Island

21h 40m2 stops Denver Intl Baltimore/Washington

$823Southwest

Sat, Nov 14 - Sat, Nov 21

6:00 am - 2:00 pmISP Islip Long Island-LIR Liberia

9h 00m1 stop Fort Lauderdale

3:05 pm - 8:50 amLIR Liberia-ISP Islip Long Island

16h 45m1 stop Fort Lauderdale

$16,218JetBlue

Mon, Nov 16 - Mon, Nov 23

6:00 am - 2:05 pmISP Islip Long Island-LIR Liberia

9h 05m1 stop Fort Lauderdale

3:10 pm - 9:56 pmLIR Liberia-ISP Islip Long Island

29h 46m1 stop Fort Lauderdale

$16,686JetBlue

Sat, Jan 9 - Sat, Jan 16

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JetBlue flights from Islip, New York to Costa Rica

Our best JetBlue deals on Islip, New York to Costa Rica flight tickets

JetBlue

Nov 16

ISP6:00 amIslip Long Island

9h 00m

1 stop

LIR2:00 pmLiberia

Nov 23

LIR3:05 pmLiberia

16h 45m

1 stop

ISP8:50 amIslip Long Island

$16,218

JetBlue

Jan 9

ISP6:00 amIslip Long Island

9h 05m

1 stop

LIR2:05 pmLiberia

Jan 16

LIR3:10 pmLiberia

29h 46m

1 stop

ISP9:56 pmIslip Long Island

$16,686

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Costa Rica that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Sat 11/14

6:00 am-12:15 pm

1 stop7h 15m

Liberia

Sat 11/21

1:00 pm-11:45 pm

1 stop9h 45m

$618

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Sat 11/14

6:00 am-12:15 pm

1 stop7h 15m

Liberia

Sat 11/21

1:05 pm-11:45 am

2 stops21h 40m

$823

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Mon 11/16

6:00 am-2:00 pm

1 stop9h 00m

Liberia

Mon 11/23

3:05 pm-8:50 am

1 stop16h 45m

$16,218

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Sat 1/9

6:00 am-2:05 pm

1 stop9h 05m

Liberia

Sat 1/16

3:10 pm-9:56 pm

1 stop29h 46m

$16,686

Cheapest one-way

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Tue 11/24

6:00 am-2:00 pm

1 stop9h 00m

$314

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Fri 10/16

6:00 am-12:58 pm

1 stop8h 58m

$354

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Wed 11/25

6:00 am-2:00 pm

1 stop9h 00m

$419

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Tue 11/24

6:00 am-2:00 pm

1 stop9h 00m

$422

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Sun 11/29

6:00 am-2:00 pm

1 stop9h 00m

$646

IslipLiberia

ISP Islip Long Island - LIR Liberia

ISPLIR

Islip Long Island

Tue 11/24

7:42 pm-1:38 pm

2 stops42h 56m

$745

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

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

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 airline that flies from Islip Long Island to Costa Rica?

JetBlue is the most popular carrier operating from Islip Long Island to Costa Rica

What airlines fly to Costa Rica?

United Airlines, JetBlue and Avianca are the top three most popular airlines that fly to Costa Rica from Islip, New York according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 9 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

Cheap Islip, New York to Costa Rica flight deals and tips

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

Best Price Found	$314
Fastest flight time	6h 50m
Direct flights	None

The best one-way flight to Costa Rica from Islip, New York in the past 72 hours is $314. The best round-trip flight deal from Islip, New York to Costa Rica found on momondo in the last 72 hours is $618.

The fastest flight from Islip, New York to Costa Rica takes 6h 50m

There are no direct flights from Islip, New York to Costa Rica. There are no popular flight routes from Islip, New York to Costa Rica.

Search flight deals

Frequently asked questions about flying from Islip, New York to Costa Rica

When did momondo last update prices for flights from Islip Long Island Airport to Costa Rica?
Prices for flights from Islip Long Island Airport to Costa Rica refresh daily.
How old do you have to be to fly from Islip Long Island Airport to Costa Rica?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The travel and health documents required for your trip to Costa Rica can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Costa Rica. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to Costa Rica. Millions of users trust and use momondo every year so you are in good hands.

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

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

How can momondo help me find flights from Islip to Costa Rica?

Once all potential Islip to Costa Rica flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Islip to Costa Rica flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Islip, New York to Costa Rica from $314

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Costa Rica departing on 11/24. 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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JetBlue flights from Islip, New York to Costa Rica

Our best JetBlue deals on Islip, New York to Costa Rica flight tickets

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See travel insights to Costa Rica from

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

What is the cheapest airline that flies from Islip Long Island to Costa Rica?

What airlines fly to Costa Rica?

Cheap Islip, New York to Costa Rica flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Islip, New York to Costa Rica

Why use momondo?

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

Popular cities in Costa Rica

Popular flights according to clicks in the last 7 days on momondo

Islip, New York flight routes

According to popular flight searches on momondo this year

Costa Rica flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Costa Rica

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Costa Rica. Availability may vary depending on flight origin and airline.

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According to popular flight searches on momondo this year