What airlines fly to Key West?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Key West from Islip, New York according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 4 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to Key West Airport?

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

How old do you have to be to fly from Islip Long Island Airport to Key West Airport?

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 Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The necessary travel and health documents for your Key West 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.

$232 Cheap Flights from Islip to Key West in 2025/26

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0 bags

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Find the cheapest flights from Islip, New York to Key West

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 pm - 10:09 am

ISP

EYW

13h 24m1 stop

1:06 pm - 8:47 pm

EYW

ISP

7h 41m1 stop

$232Multiple Airlines

Fri, Jan 16 - Fri, Jan 23

8:45 pm - 10:09 am

ISP

EYW

13h 24m1 stop

9:49 am - 11:10 am

EYW

ISP

25h 21m2 stops

$246Multiple Airlines

Fri, Jan 16 - Fri, Jan 23

5:07 pm - 11:17 am

ISP

EYW

42h 10m2 stops

11:04 am - 11:17 am

EYW

ISP

24h 13m1 stop

$341Multiple Airlines

Fri, Feb 27 - Fri, Mar 6

4:40 pm - 1:30 pm

ISP

EYW

20h 50m1 stop

1:10 pm - 7:39 pm

EYW

ISP

6h 29m1 stop

$365Multiple Airlines

Thu, Jan 1 - Mon, Jan 5

5:27 pm - 8:15 am

ISP

EYW

14h 48m1 stop

8:55 am - 1:45 pm

EYW

ISP

28h 50m2 stops

$370Multiple Airlines

Wed, Dec 31 - Sun, Jan 4

5:27 pm - 8:15 am

ISP

EYW

14h 48m1 stop

8:55 am - 1:09 pm

EYW

ISP

28h 14m1 stop

$393Multiple Airlines

Wed, Dec 31 - Sun, Jan 4

4:40 pm - 12:30 pm

ISP

EYW

19h 50m2 stops

1:10 pm - 7:39 pm

EYW

ISP

6h 29m1 stop

$394Multiple Airlines

Thu, Jan 1 - Mon, Jan 5

2:31 pm - 12:21 pm

ISP

EYW

21h 50m2 stops

9:46 am - 7:38 am

EYW

ISP

21h 52m1 stop

$412Multiple Airlines

Mon, Feb 16 - Sun, Feb 22

5:07 pm - 1:30 pm

ISP

EYW

20h 23m2 stops

4:09 pm - 7:38 am

EYW

ISP

15h 29m1 stop

$429Multiple Airlines

Thu, Feb 19 - Sun, Feb 22

4:40 pm - 1:30 pm

ISP

EYW

20h 50m1 stop

9:57 am - 11:59 pm

EYW

ISP

14h 02m1 stop

$567Multiple Airlines

Tue, Dec 30 - Fri, Jan 2

Breeze Airways flights from Islip, New York to Key West

Our best Breeze Airways deals on Islip, New York to Key West flight tickets

Breeze Airways

Feb 27

ISP2:31 pmIslip Long Island

43h 50m

2 stops

EYW10:21 amKey West

Mar 6

EYW9:49 amKey West

25h 28m

2 stops

ISP11:17 amIslip Long Island

$608

Find similar

Breeze Airways

Jan 16

ISP2:01 pmIslip Long Island

44h 20m

2 stops

EYW10:21 amKey West

Jan 23

EYW9:49 amKey West

25h 21m

2 stops

ISP11:10 amIslip Long Island

$624

Find similar

Breeze Airways

Jan 1

ISP11:40 amIslip Long Island

21h 37m

2 stops

EYW9:17 amKey West

Jan 5

EYW1:10 pmKey West

46h 00m

2 stops

ISP11:10 amIslip Long Island

$662

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Fri 1/16

8:45 pm-10:09 am

1 stop13h 24m

Key West

Fri 1/23

1:06 pm-8:47 pm

1 stop7h 41m

$232

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Fri 1/16

8:45 pm-10:09 am

1 stop13h 24m

Key West

Fri 1/23

9:49 am-11:10 am

2 stops25h 21m

$246

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Fri 2/27

5:07 pm-11:17 am

2 stops42h 10m

Key West

Fri 3/6

11:04 am-11:17 am

1 stop24h 13m

$341

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 1/1

4:40 pm-1:30 pm

1 stop20h 50m

Key West

Mon 1/5

1:10 pm-7:39 pm

1 stop6h 29m

$365

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Wed 12/31

5:27 pm-8:15 am

1 stop14h 48m

Key West

Sun 1/4

8:55 am-1:45 pm

2 stops28h 50m

$370

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Wed 12/31

5:27 pm-8:15 am

1 stop14h 48m

Key West

Sun 1/4

8:55 am-1:09 pm

1 stop28h 14m

$393

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 1/1

4:40 pm-12:30 pm

2 stops19h 50m

Key West

Mon 1/5

1:10 pm-7:39 pm

1 stop6h 29m

$394

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Mon 2/16

2:31 pm-12:21 pm

2 stops21h 50m

Key West

Sun 2/22

9:46 am-7:38 am

1 stop21h 52m

$412

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 2/19

5:07 pm-1:30 pm

2 stops20h 23m

Key West

Sun 2/22

4:09 pm-7:38 am

1 stop15h 29m

$429

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Tue 12/30

4:40 pm-1:30 pm

1 stop20h 50m

Key West

Fri 1/2

9:57 am-11:59 pm

1 stop14h 02m

$567

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Islip, New York is on a Saturday. momondo users have found tickets for Saturday 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 Key West for around $591.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the afternoon. momondo users have found flights departing from Islip, New York to Key West in the afternoon for as low as $348. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $686. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Islip, New York to Key West

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

Estimated round-trip price

Cheap Islip, New York to Key West (ISP to EYW) flight deals and tips

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

Fastest flight time	18h 40m
Direct flights	None

The fastest flight from Islip, New York to Key West takes 18h 40m

There are no direct flights from Islip, New York to Key West. There are no popular flight routes from Islip, New York to Key West.

Search flight deals

How far is Islip Long Island to Key West by plane?
There are 1221.8 mi between Islip Long Island and Key West. Flights usually cover this in 18h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Islip Long Island Airport to Key West Airport?
Prices for flights from Islip Long Island Airport to Key West Airport are refreshed on a daily basis.
How old do you have to be to fly from Islip Long Island Airport to Key West Airport?
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 Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The necessary travel and health documents for your Key West 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.

Big Pine Key

Little Torch Key

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Key West from Islip with this policy.

How can momondo help me find flights from Islip to Key West?

Once you have performed a search for Islip to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Islip to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.