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Cheap flights from Islip, New York to Key West from $262

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Key West departing on 3/8. 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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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:08 pm - 12:26 pm
ISP
-
EYW
19h 18m
1 stop
Multiple Airlines Logo
9:46 am - 1:31 pm
EYW
-
ISP
27h 45m
2 stops
$262Multiple Airlines
Sun, Mar 8 - Thu, Mar 12
Multiple Airlines Logo
5:08 pm - 12:26 pm
ISP
-
EYW
19h 18m
1 stop
Multiple Airlines Logo
9:46 am - 4:13 pm
EYW
-
ISP
6h 27m
1 stop
$269Multiple Airlines
Sun, Mar 8 - Thu, Mar 12
Multiple Airlines Logo
7:26 pm - 12:26 pm
ISP
-
EYW
17h 00m
2 stops
Multiple Airlines Logo
4:22 pm - 10:13 am
EYW
-
ISP
17h 51m
1 stop
$323Multiple Airlines
Sun, Mar 22 - Sun, Mar 29
Multiple Airlines Logo
8:31 pm - 9:09 am
ISP
-
EYW
12h 38m
1 stop
Multiple Airlines Logo
9:49 am - 7:36 pm
EYW
-
ISP
9h 47m
1 stop
$339Multiple Airlines
Sun, Apr 26 - Fri, May 1
Multiple Airlines Logo
8:31 pm - 9:09 am
ISP
-
EYW
12h 38m
1 stop
Multiple Airlines Logo
9:49 am - 8:05 pm
EYW
-
ISP
10h 16m
2 stops
$358Multiple Airlines
Sun, Apr 26 - Fri, May 1
Multiple Airlines Logo
4:34 pm - 12:26 pm
ISP
-
EYW
19h 52m
1 stop
Multiple Airlines Logo
4:22 pm - 10:13 am
EYW
-
ISP
17h 51m
1 stop
$366Multiple Airlines
Sun, Mar 22 - Sun, Mar 29
Multiple Airlines Logo
11:55 am - 9:09 am
ISP
-
EYW
21h 14m
2 stops
Multiple Airlines Logo
9:46 am - 12:33 pm
EYW
-
ISP
26h 47m
1 stop
$385Multiple Airlines
Thu, Mar 5 - Sun, Mar 8
Breeze Airways Logo
5:50 pm - 12:31 pm
ISP
-
EYW
18h 41m
2 stops
Breeze Airways Logo
11:09 am - 11:17 am
EYW
-
ISP
24h 08m
1 stop
$403Breeze Airways
Sun, May 24 - Fri, May 29
Multiple Airlines Logo
4:07 pm - 12:26 pm
ISP
-
EYW
20h 19m
1 stop
Multiple Airlines Logo
9:49 am - 7:36 pm
EYW
-
ISP
9h 47m
1 stop
$404Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
3:34 pm - 12:26 pm
ISP
-
EYW
20h 52m
1 stop
Multiple Airlines Logo
9:46 am - 12:33 pm
EYW
-
ISP
26h 47m
1 stop
$410Multiple Airlines
Thu, Mar 5 - Sun, Mar 8

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
May 24
ISP5:50 pmIslip Long Island
18h 41m
2 stops
EYW12:31 pmKey West
May 29
EYW11:09 amKey West
24h 08m
1 stop
ISP11:17 amIslip Long Island
$403
Breeze Airways
Mar 8
ISP11:55 amIslip Long Island
21h 14m
2 stops
EYW9:09 amKey West
Mar 12
EYW4:22 pmKey West
21h 09m
2 stops
ISP1:31 pmIslip Long Island
$581
Breeze Airways
Mar 6
ISP2:31 pmIslip Long Island
41h 35m
2 stops
EYW8:06 amKey West
Mar 10
EYW1:01 pmKey West
22h 09m
2 stops
ISP11:10 amIslip Long Island
$612

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated February 20, 2026.
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

Sun 3/8

5:08 pm-12:26 pm

1 stop19h 18m

Key West

Thu 3/12

9:46 am-1:31 pm

2 stops27h 45m

$262

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 3/8

5:08 pm-12:26 pm

1 stop19h 18m

Key West

Thu 3/12

9:46 am-4:13 pm

1 stop6h 27m

$269

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 3/22

7:26 pm-12:26 pm

2 stops17h 00m

Key West

Sun 3/29

4:22 pm-10:13 am

1 stop17h 51m

$323

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 4/26

8:31 pm-9:09 am

1 stop12h 38m

Key West

Fri 5/1

9:49 am-7:36 pm

1 stop9h 47m

$339

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 4/26

8:31 pm-9:09 am

1 stop12h 38m

Key West

Fri 5/1

9:49 am-8:05 pm

2 stops10h 16m

$358

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 3/22

4:34 pm-12:26 pm

1 stop19h 52m

Key West

Sun 3/29

4:22 pm-10:13 am

1 stop17h 51m

$366

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 3/5

11:55 am-9:09 am

2 stops21h 14m

Key West

Sun 3/8

9:46 am-12:33 pm

1 stop26h 47m

$385

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 5/24

5:50 pm-12:31 pm

2 stops18h 41m

Key West

Fri 5/29

11:09 am-11:17 am

1 stop24h 08m

$403

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 4/23

4:07 pm-12:26 pm

1 stop20h 19m

Key West

Mon 4/27

9:49 am-7:36 pm

1 stop9h 47m

$404

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 3/5

3:34 pm-12:26 pm

1 stop20h 52m

Key West

Sun 3/8

9:46 am-12:33 pm

1 stop26h 47m

$410

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Key West from

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

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $428. 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 $577.

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 morning. momondo users have found flights departing from Islip, New York to Key West in the morning for as low as $489. 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 at noon, with an average ticket price of $514. Departure times at noon 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

11h 37m

Direct flights

None
The fastest flight from Islip, New York to Key West takes 11h 37m
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 11h 37m, 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.

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
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.

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