What airlines fly to Florida Keys?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Florida Keys from Islip, New York according to our data. United Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 4 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Florida Keys?

Frontier, Southwest, and Breeze Airways are the most popular carriers operating from Islip Long Island to Florida Keys

When did momondo last update prices for flights from Islip Long Island Airport to Florida Keys?

Prices for flights from Islip Long Island Airport to Florida Keys are updated daily.

How many operators does momondo search for flights from Islip Long Island Airport to Florida Keys?

As of April 2026, there are 4 operators available to choose from for flights from Islip Long Island Airport to Florida Keys.

How old do you have to be to fly from Islip Long Island Airport to Florida Keys?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The travel and health documents required for your trip to Florida Keys can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Florida Keys. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$121 Cheap Flights from Islip to Florida Keys in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Islip, New York to Florida Keys

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:35 pm - 9:09 am

ISP

EYW

12h 34m

1 stop

11:01 am - 7:36 pm

EYW

ISP

8h 35m

1 stop

$200Multiple Airlines

Sun, Apr 26 - Thu, Apr 30

8:31 pm - 12:21 pm

ISP

EYW

15h 50m

1 stop

11:01 am - 7:36 pm

EYW

ISP

8h 35m

1 stop

$204Multiple Airlines

Mon, Apr 27 - Thu, Apr 30

11:50 am - 9:06 am

ISP

EYW

21h 16m

2 stops

11:51 am - 9:33 am

EYW

ISP

21h 42m

1 stop

$236Multiple Airlines

Sat, Apr 25 - Wed, Apr 29

10:48 am - 11:27 am

ISP

EYW

24h 39m

1 stop

11:46 am - 7:05 pm

EYW

ISP

7h 19m

1 stop

$264Multiple Airlines

Thu, Jun 11 - Wed, Jun 17

8:35 pm - 9:09 am

ISP

EYW

12h 34m

1 stop

4:22 pm - 8:04 pm

EYW

ISP

27h 42m

2 stops

$270Multiple Airlines

Sun, Apr 26 - Thu, Apr 30

11:57 am - 10:27 am

ISP

MIA

22h 30m

1 stop

11:19 am - 10:03 am

MIA

ISP

22h 44m

2 stops

$274Multiple Airlines

Wed, May 20 - Tue, Jun 16

4:10 pm - 9:10 pm

ISP

MIA

5h 00m

1 stop

7:20 am - 1:50 pm

MIA

ISP

6h 30m

1 stop

$279Southwest

Wed, May 13 - Wed, May 20

2:30 pm - 9:55 pm

ISP

MIA

7h 25m

2 stops

5:45 pm - 10:40 pm

MIA

ISP

4h 55m

1 stop

$284Southwest

Wed, May 13 - Wed, May 20

2:30 pm - 9:55 pm

ISP

MIA

7h 25m

2 stops

12:10 pm - 10:10 pm

MIA

ISP

10h 00m

2 stops

$289Southwest

Tue, May 19 - Tue, Jun 2

4:25 pm - 10:05 pm

ISP

MIA

5h 40m

1 stop

12:35 pm - 6:30 pm

MIA

ISP

5h 55m

1 stop

$293Southwest

Sat, May 2 - Tue, May 5

Southwest flights from Islip, New York to Florida Keys

Our best Southwest deals on Islip, New York to Florida Keys flight tickets

Southwest

May 13

ISP4:10 pmIslip Long Island

5h 00m

1 stop

MIA9:10 pmMiami

May 20

MIA7:20 amMiami

6h 30m

1 stop

ISP1:50 pmIslip Long Island

$279

Southwest

May 13

ISP2:30 pmIslip Long Island

7h 25m

2 stops

MIA9:55 pmMiami

May 20

MIA5:45 pmMiami

4h 55m

1 stop

ISP10:40 pmIslip Long Island

$284

Southwest

May 19

ISP2:30 pmIslip Long Island

7h 25m

2 stops

MIA9:55 pmMiami

Jun 2

MIA12:10 pmMiami

10h 00m

2 stops

ISP10:10 pmIslip Long Island

$289

Breeze Airways flights from Islip, New York to Florida Keys

Our best Breeze Airways deals on Islip, New York to Florida Keys flight tickets

Breeze Airways

Jun 1

ISP2:28 pmIslip Long Island

22h 06m

2 stops

EYW12:34 pmKey West

Jun 8

EYW1:11 pmKey West

24h 17m

2 stops

ISP1:28 pmIslip Long Island

$698

Breeze Airways

May 4

ISP8:45 pmIslip Long Island

38h 21m

2 stops

EYW11:06 amKey West

May 7

EYW11:04 amKey West

6h 06m

2 stops

ISP5:10 pmIslip Long Island

$708

Breeze Airways

May 4

ISP8:45 pmIslip Long Island

38h 21m

2 stops

EYW11:06 amKey West

May 8

EYW11:07 amKey West

24h 10m

1 stop

ISP11:17 amIslip Long Island

$719

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 4/26

8:35 pm-9:09 am

1 stop12h 34m

Key West

Thu 4/30

11:01 am-7:36 pm

1 stop8h 35m

$200

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Mon 4/27

8:31 pm-12:21 pm

1 stop15h 50m

Key West

Thu 4/30

11:01 am-7:36 pm

1 stop8h 35m

$204

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sat 4/25

11:50 am-9:06 am

2 stops21h 16m

Key West

Wed 4/29

11:51 am-9:33 am

1 stop21h 42m

$236

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 6/11

10:48 am-11:27 am

1 stop24h 39m

Key West

Wed 6/17

11:46 am-7:05 pm

1 stop7h 19m

$264

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 4/26

8:35 pm-9:09 am

1 stop12h 34m

Key West

Thu 4/30

4:22 pm-8:04 pm

2 stops27h 42m

$270

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Wed 5/20

11:57 am-10:27 am

1 stop22h 30m

Miami

Tue 6/16

11:19 am-10:03 am

2 stops22h 44m

$274

Quickest round-trip

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Wed 5/13

4:10 pm-9:10 pm

1 stop5h 00m

Miami

Wed 5/20

7:20 am-1:50 pm

1 stop6h 30m

$279

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Wed 5/13

2:30 pm-9:55 pm

2 stops7h 25m

Miami

Wed 5/20

5:45 pm-10:40 pm

1 stop4h 55m

$284

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Tue 5/19

2:30 pm-9:55 pm

2 stops7h 25m

Miami

Tue 6/2

12:10 pm-10:10 pm

2 stops10h 00m

$289

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 5/2

4:25 pm-10:05 pm

1 stop5h 40m

Miami

Tue 5/5

12:35 pm-6:30 pm

1 stop5h 55m

$293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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 month to fly to Florida Keys?

The month of December is another great option to travel to Florida Keys, with average flight prices from Islip, New York averaging around $187.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Islip, New York to Florida Keys is on a Friday when prices can be found for as low as $377. The most expensive day to fly to Florida Keys is Sunday, with ticket prices averaging around $707.

Can stopping save me money on Islip, New York to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Islip, New York to Florida Keys.

Cheap Islip, New York to Florida Keys flight deals and tips

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

Fastest flight time	4h 35m
Direct flights	None

The fastest flight from Islip, New York to Florida Keys takes 4h 35m

There are no direct flights from Islip, New York to Florida Keys. There are no popular flight routes from Islip, New York to Florida Keys.

Search flight deals

Frequently asked questions about flying from Islip, New York to Florida Keys

When did momondo last update prices for flights from Islip Long Island Airport to Florida Keys?
Prices for flights from Islip Long Island Airport to Florida Keys are updated daily.
How many operators does momondo search for flights from Islip Long Island Airport to Florida Keys?
As of April 2026, there are 4 operators available to choose from for flights from Islip Long Island Airport to Florida Keys.
How old do you have to be to fly from Islip Long Island Airport to Florida Keys?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The travel and health documents required for your trip to Florida Keys can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Florida Keys. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Islip, New York to Florida Keys?
Based on momondo bookings for flights between Islip, New York and Florida Keys, the leading plane model is Airbus A320-100/200, making up 24.81% of the total bookings. Other popular models include Airbus A220-300 with 12.40%, Airbus A320neo with 11.56%, and Airbus A321neo with 11.00%.

Why use momondo?

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

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

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

All flight searches from Islip to Florida Keys on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Islip to Florida Keys?

Once you have performed a search for Islip to Florida Keys 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 Florida Keys right now. Can momondo alert me if prices change?

Price alerts on flights to Florida Keys from Islip are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.