What is the cheapest airline to fly from Islip, New York to Nassau round-trip?

Our cheapest airline available from Islip, New York to Nassau is JetBlue. Our recent data shows that you can find tickets from as low as $578 on this airline.

In terms of precipitation, rainfall in Nassau ranges from 1.6 - 7.1 inches per month. September is typically the wettest month, when rainfall can reach 7.1 in. January is typically the driest time to visit Nassau when rainfall is around 1.6 in.

If weather is an important factor for your trip to Nassau, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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

Travelers have found it’s best to book a flight 51 days in advance to save up to 72% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to Nassau 1-2 weeks in advance for as low as $436, or $670 for flights within the next 24 hours.

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

Flights from Islip, New York to Nassau lean towards being more expensive in February. Prices are generally better when you fly from Islip, New York to Nassau in September, with the cheapest ticket starting at $226.

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

When flying from Islip, New York to Nassau, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Islip to Nassau?

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

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

Yes. Cheapflights offers flight deals from Islip to Nassau by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$154+ Flights from Islip, NY to Nassau

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Cheap flight deals from Islip to Nassau

Round-trip from	$485 (Kiwi.com)
One-way from	$154 (JetBlue)
Popular in	February
Cheapest in	September
Average price	$438

From Islip Long Island to Nassau Intl

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One-way flight from Islip Long Island to Nassau Intl

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Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Islip to Nassau

Cheapest flights from Islip to Nassau
Explore the most affordable flight options available from Islip to Nassau. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Wed 9/2411:35 amISP - NAS

1 stop28h 50mMultiple Airlines

Mon 9/2912:00 pmNAS - ISP

1 stop22h 40mMultiple Airlines

Deal found 7/27

$485

Wed 8/1312:35 pmISP - NAS

1 stop24h 14mJetBlue

Mon 8/186:13 pmNAS - ISP

1 stop17h 28mJetBlue

Deal found 7/29

$578

Best flights from Islip to Nassau
Discover carefully curated flight deals from Islip to Nassau that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Wed 9/2411:35 amISP - NAS

1 stop28h 50mMultiple Airlines

Mon 9/2912:00 pmNAS - ISP

1 stop22h 40mMultiple Airlines

Deal found 7/27

$485

Wed 8/1312:35 pmISP - NAS

1 stop24h 14mJetBlue

Mon 8/186:13 pmNAS - ISP

1 stop17h 28mJetBlue

Deal found 7/29

$578

Last-minute flights from Islip to Nassau
Discover last-minute flight deals from Islip to Nassau. Data last updated July 29, 2025 and is based on user searches.

Wed 8/1312:35 pmISP - NAS

1 stop24h 14mJetBlue

Mon 8/186:13 pmNAS - ISP

1 stop17h 28mJetBlue

Deal found 7/29

$578

Fri 8/299:58 amISP - NAS

1 stop6h 27mMultiple Airlines

Wed 9/34:25 pmNAS - ISP

1 stop7h 16mMultiple Airlines

Deal found 7/27

$547

One-way flights from Islip to Nassau
Search for one-way flight options from Islip to Nassau. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Fri 9/1211:35 amISP - NAS

1 stop5h 19mJetBlue

Deal found 7/27

$154

Fly from

Fly to

Route

Depart

Return

Price

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Wed 9/24

11:35 am-4:25 pm

1 stop28h 50m

Nassau Intl

Mon 9/29

12:00 pm-10:40 am

1 stop22h 40m

$485

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Wed 8/13

12:35 pm-12:49 pm

1 stop24h 14m

Nassau Intl

Mon 8/18

6:13 pm-11:41 am

1 stop17h 28m

$578

IslipNassau

ISP - NAS

ISPNAS

Islip Long Island

Fri 9/12

11:35 am-4:54 pm

1 stop5h 19m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Islip to Nassau

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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Nassau (average of $362). Flying from Islip, New York to Nassau in June is currently the most expensive (average of $455). 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 Nassau

Peruse reviews from past customers who have flown with JetBlue from Islip to Nassau to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

JetBlue

7.3

Good

2,913 reviews

Reviews

1 / 20

2.0

Mediocre

Kevin,Jul 2025

JFK - POS

Flight was delayed a couple hours with no explanation. The aircraft was changed and so did our seating arrangement with no notice.

JetBlue

7.3

Good

2,913 reviews

JetBlue

7.3

Good

2,913 reviews

Reviews

1 / 20

2.0

Mediocre

Kevin,Jul 2025

JFK - POS

Flight was delayed a couple hours with no explanation. The aircraft was changed and so did our seating arrangement with no notice.

Related info for your journey

What is the cheapest airline to fly from Islip, New York to Nassau round-trip?
Our cheapest airline available from Islip, New York to Nassau is JetBlue. Our recent data shows that you can find tickets from as low as $578 on this airline.
Can I find deals for flights from Islip to Nassau that include hotel bookings?
Yes. In addition to deals on Islip to Nassau flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Nassau?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Nassau.
Can I find deals for business class flights from Islip to Nassau?
Yes. Cheapflights offers flight deals from Islip to Nassau 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 Nassau?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Nassau (average of $362). Flying from Islip, New York to Nassau in June is currently the most expensive (average of $455). 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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$154+ Cheap flights from Islip, NY (ISP) to Nassau (NAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Nassau 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 Nassau

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Islip to Nassau

Cheapest flights from Islip to NassauExplore the most affordable flight options available from Islip to Nassau. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Islip to Nassau. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Islip to Nassau

Have a flexible travel schedule? Discover the best time to fly to Nassau from Islip with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Islip to Nassau

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

Reviews of airlines servicing Nassau

Get insights into the airlines that provide service to Nassau. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Nassau. Reviews last updated July 29, 2025.

Peruse reviews from past customers who have flown with JetBlue from Islip to Nassau to help guide your decision. You can also see how each airline stacks up in terms of 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 Nassau. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Islip, New York to Nassau round-trip?

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

How can I find direct flights from Islip to Nassau?

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

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

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 Nassau

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 Nassau
Explore the most affordable flight options available from Islip to Nassau. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.