Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Islip, New York to Liberia from $165

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 Liberia departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Islip, New York to Liberia

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
6:00 am - 12:55 pm
ISP
-
LIR
8h 55m
1 stop
JetBlue Logo
2:05 pm - 1:05 pm
LIR
-
ISP
21h 00m
2 stops
$674JetBlue
Mon, Sep 21 - Wed, Sep 30
JetBlue Logo
6:00 am - 12:55 pm
ISP
-
LIR
8h 55m
1 stop
JetBlue Logo
2:05 pm - 9:35 pm
LIR
-
ISP
29h 30m
1 stop
$690JetBlue
Mon, Sep 21 - Wed, Sep 30
Southwest Logo
6:00 am - 11:35 am
ISP
-
LIR
7h 35m
1 stop
Southwest Logo
11:50 am - 10:30 am
LIR
-
ISP
20h 40m
2 stops
$894Southwest
Sun, Jul 5 - Sun, Jul 12
Southwest Logo
6:00 am - 11:35 am
ISP
-
LIR
7h 35m
1 stop
Southwest Logo
12:35 pm - 11:35 pm
LIR
-
ISP
9h 00m
1 stop
$950Southwest
Sun, Jul 5 - Sun, Jul 12
Multiple Airlines Logo
2:00 pm - 12:55 pm
ISP
-
LIR
24h 55m
2 stops
Multiple Airlines Logo
2:05 pm - 10:56 am
LIR
-
ISP
18h 51m
2 stops
$969Multiple Airlines
Mon, Sep 21 - Wed, Sep 30
Multiple Airlines Logo
5:29 pm - 11:55 am
ISP
-
LIR
20h 26m
2 stops
Multiple Airlines Logo
2:06 pm - 10:56 am
LIR
-
ISP
18h 50m
2 stops
$1,536Multiple Airlines
Sun, Jul 5 - Sun, Jul 12

JetBlue flights from Islip, New York to Liberia

Our best JetBlue deals on Islip, New York to Liberia flight tickets
JetBlue
Sep 21
ISP6:00 amIslip Long Island
8h 55m
1 stop
LIR12:55 pmLiberia
Sep 30
LIR2:05 pmLiberia
21h 00m
2 stops
ISP1:05 pmIslip Long Island
$674
JetBlue
Sep 21
ISP6:00 amIslip Long Island
8h 55m
1 stop
LIR12:55 pmLiberia
Sep 30
LIR2:05 pmLiberia
29h 30m
1 stop
ISP9:35 pmIslip Long Island
$690
JetBlue
May 26
ISP12:25 pmIslip Long Island
25h 30m
1 stop
LIR11:55 amLiberia
Jun 2
LIR1:00 pmLiberia
20h 35m
1 stop
ISP11:35 amIslip Long Island
$1,365

Southwest flights from Islip, New York to Liberia

Our best Southwest deals on Islip, New York to Liberia flight tickets
Southwest
Jul 5
ISP6:00 amIslip Long Island
7h 35m
1 stop
LIR11:35 amLiberia
Jul 12
LIR11:50 amLiberia
20h 40m
2 stops
ISP10:30 amIslip Long Island
$894
Southwest
Jul 5
ISP6:00 amIslip Long Island
7h 35m
1 stop
LIR11:35 amLiberia
Jul 12
LIR12:35 pmLiberia
9h 00m
1 stop
ISP11:35 pmIslip Long Island
$950

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York to Liberia 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 May 22, 2026.
Use the filters below to find and compare flights from Islip, New York to Liberia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Mon 9/21

6:00 am-12:55 pm

1 stop8h 55m

Liberia

Wed 9/30

2:05 pm-1:05 pm

2 stops21h 00m

$674

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Mon 9/21

6:00 am-12:55 pm

1 stop8h 55m

Liberia

Wed 9/30

2:05 pm-9:35 pm

1 stop29h 30m

$690

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Sun 7/5

6:00 am-11:35 am

1 stop7h 35m

Liberia

Sun 7/12

11:50 am-10:30 am

2 stops20h 40m

$894
Quickest round-trip

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Sun 7/5

6:00 am-11:35 am

1 stop7h 35m

Liberia

Sun 7/12

12:35 pm-11:35 pm

1 stop9h 00m

$950

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Mon 9/21

2:00 pm-12:55 pm

2 stops24h 55m

Liberia

Wed 9/30

2:05 pm-10:56 am

2 stops18h 51m

$969

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Sun 7/5

5:29 pm-11:55 am

2 stops20h 26m

Liberia

Sun 7/12

2:06 pm-10:56 am

2 stops18h 50m

$1,536
Cheapest one-way

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Mon 11/2

6:00 am-2:00 pm

1 stop9h 00m

$165

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Wed 11/4

6:00 am-2:00 pm

1 stop9h 00m

$210

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Tue 8/11

6:00 am-1:01 pm

1 stop9h 01m

$276

IslipLiberia

ISP - LIR

ISPLIR

Islip Long Island

Wed 8/12

6:00 am-1:01 pm

1 stop9h 01m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Liberia from

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

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 Liberia?

On average, the least expensive day to fly to Liberia from Islip, New York is on a Sunday. momondo users have found tickets for Sunday departures for as low as $434. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Islip, New York to Liberia for around $516.

When to book flights from Islip, New York to Liberia

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

Cheap Islip, New York to Liberia (ISP to LIR) flight deals and tips

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

Fastest flight time

7h 35m

Direct flights

None
The fastest flight from Islip, New York to Liberia takes 7h 35m
There are no direct flights from Islip, New York to Liberia. There are no popular flight routes from Islip, New York to Liberia.
Search flight deals

Frequently asked questions about flying from Islip, New York to Liberia

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

    Liberia is 2207.6 mi away from Islip Long Island. 7h 35m is a normal flight duration for this route.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Liberia Airport.

  • What documentation or ID do you need to fly to Liberia Airport?

    The necessary travel and health documents for your Liberia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Liberia?

Book flights to Liberia if you plan to visit one of these locations
Culebra
Playa Hermosa
Coco

Why use momondo?

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

It is quick and easy to find Islip to Liberia 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 Liberia that suits you.

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

momondo does allow users to show only those flights to Liberia from Islip which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Liberia from Islip.

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

If you are not ready to book a flight from Islip to Liberia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Liberia and let you know when they change.

An easier way to manage your Liberia 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 6/21
Sun 6/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Costa Rica