HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$230+ Cheap flights from Islip, NY to Key West (ISP - EYW)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — EYW
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$335
(KAYAK)

One-way from

$230
(JetBlue)

Popular in

December

Cheapest in

September

Average price

$534
Provider with most accurate pricing for Islip Long Island-Key West flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Key West flights.
Search Deals
From Islip Long Island to Key West
Search Deals
One-way flight from Islip Long Island to Key West
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Islip to Key West

Cheapest flights from Islip to Key West
Explore the most affordable flight options available from Islip to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This JetBlue deal was found by Cheapflights users on 4/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2810:39 amISP - EYW
1 stop7h 26mJetBlue
Wed 4/308:45 amEYW - ISP
1 stop8h 05mJetBlue
Deal found 4/14$426
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/282:12 pmISP - EYW
2 stops47h 05mBreeze Airways
Thu 7/31:47 pmEYW - ISP
2 stops20h 17mBreeze Airways
Deal found 4/14$613
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:39 pmISP - EYW
3 stops20h 37mMultiple Airlines
Mon 5/129:51 amEYW - ISP
2 stops27h 24mMultiple Airlines
Deal found 4/14$853

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Key West 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 April 15, 2025.
Use the filters below to find and compare flights from Islip to Key West that are best for you.

Fly from

Islip

Fly to

Key West

Route

Depart

Return

Price

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Mon 5/12

5:45 pm-6:05 pm

1 stop24h 20m

Key West

Thu 5/15

8:45 am-4:50 pm

1 stop8h 05m

$335

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sat 6/28

2:12 pm-1:17 pm

2 stops47h 05m

Key West

Thu 7/3

1:47 pm-10:04 am

2 stops20h 17m

$613

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 5/8

7:39 pm-4:16 pm

3 stops20h 37m

Key West

Mon 5/12

9:51 am-1:15 pm

2 stops27h 24m

$853

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Wed 4/23

10:39 am-6:05 pm

1 stop7h 26m

$230

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 4/24

10:50 am-10:20 am

3 stops23h 30m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Compare providers for flights from Islip to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Key West in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Key West flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Key West

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

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

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Key West (average of $328). Flying from Islip, New York to Key West in March is currently the most expensive (average of $493). 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.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. 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 Key West. Reviews last updated April 15, 2025.
Breeze Airways
8.1
Very good
158 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Overall

8.1

Crew

8.8

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
158 reviews
Breeze Airways
8.1
Very good
158 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Overall

8.1

Crew

8.8

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,927 reviews
Breeze Airways
8.1
Very good
158 reviews

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Overall

8.1

Crew

8.8

Food

6.7

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Islip to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Islip to Key West that include hotel bookings?

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

  • How can I find direct flights from Islip to Key West?

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

  • Can I find deals for business class flights from Islip to Key West?

    Yes. Cheapflights offers flight deals from Islip to Key West 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 Key West?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Key West (average of $328). Flying from Islip, New York to Key West in March is currently the most expensive (average of $493). 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

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

Alternative routes for Islip to Key West

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Fort Lauderdale flights
Newark to Orlando flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Miami flights
LaGuardia to Orlando flights
Newark to Tampa flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Tampa flights
John F Kennedy Intl to Tampa flights
LaGuardia to West Palm Beach flights
Newark to West Palm Beach flights
John F Kennedy Intl to Fort Myers flights
LaGuardia to Fort Myers flights
Newark to Fort Myers flights
Newark to Jacksonville flights
Islip to Fort Lauderdale flights
LaGuardia to Sarasota flights
Buffalo to Orlando flights
Newark to Key West flights
Newark to Sarasota flights
John F Kennedy Intl to Jacksonville flights
LaGuardia to Jacksonville flights
Islip to Orlando flights
John F Kennedy Intl to Sarasota flights
White Plains to Orlando flights
White Plains to Miami flights
Stewart to Orlando flights
Newark to Orlando Sanford Intl flights
John F Kennedy Intl to Key West flights
Albany to Orlando flights
White Plains to Fort Lauderdale flights
Newark to St Petersburg flights
White Plains to West Palm Beach flights
Buffalo to Tampa flights
Syracuse to Orlando flights
LaGuardia to Key West flights
White Plains to Tampa flights
Rochester to Orlando flights
White Plains to Daytona Beach flights
White Plains to Fort Myers flights
Islip to Tampa flights
John F Kennedy Intl to Panama City flights
Buffalo to Fort Lauderdale flights
LaGuardia to Pensacola flights
John F Kennedy Intl to Pensacola flights
Rochester to Fort Lauderdale flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.