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 63% 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?

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 May 2026, there are 3 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.

$140 Cheap Flights from Islip, New York to Florida Keys in 2026

1 adult

0 bags

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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.

11:57 am - 10:16 am

ISP

MIA

22h 19m

1 stop

5:05 am - 11:17 am

MIA

ISP

6h 12m

1 stop

$298Multiple Airlines

Sat, Aug 22 - Sat, Aug 29

5:35 pm - 11:00 pm

ISP

MIA

5h 25m

1 stop

5:50 pm - 10:35 pm

MIA

ISP

4h 45m

1 stop

$299Southwest

Sat, Jun 13 - Tue, Jun 16

2:45 pm - 10:05 pm

ISP

MIA

7h 20m

2 stops

5:50 pm - 10:35 pm

MIA

ISP

4h 45m

1 stop

$304Southwest

Sat, Jun 13 - Tue, Jun 16

4:40 pm - 9:25 pm

ISP

MIA

4h 45m

1 stop

6:30 am - 12:05 pm

MIA

ISP

5h 35m

1 stop

$318Southwest

Wed, Jul 8 - Sat, Aug 8

2:55 pm - 10:10 pm

ISP

MIA

7h 15m

2 stops

6:35 am - 11:50 am

MIA

ISP

5h 15m

1 stop

$323Southwest

Tue, Jun 16 - Tue, Jun 23

11:55 am - 7:55 pm

ISP

MIA

8h 00m

2 stops

9:40 am - 2:30 pm

MIA

ISP

4h 50m

1 stop

$324Southwest

Sat, Aug 22 - Sat, Aug 29

5:00 pm - 10:05 pm

ISP

MIA

5h 05m

1 stop

7:00 am - 11:55 am

MIA

ISP

4h 55m

1 stop

$328Southwest

Fri, Sep 4 - Mon, Sep 7

9:52 pm - 11:27 am

ISP

EYW

13h 35m

1 stop

12:07 pm - 3:56 pm

EYW

ISP

27h 49m

1 stop

$336Multiple Airlines

Thu, Jun 11 - Mon, Jun 15

2:55 pm - 9:20 pm

ISP

MIA

6h 25m

1 stop

6:35 am - 11:50 am

MIA

ISP

5h 15m

1 stop

$338Southwest

Tue, Jun 16 - Tue, Jun 23

5:50 pm - 12:31 pm

ISP

EYW

18h 41m

2 stops

11:04 am - 5:10 pm

EYW

ISP

6h 06m

2 stops

$699Breeze Airways

Sun, Aug 2 - Thu, Aug 6

Southwest flights from Islip, New York to Florida Keys

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

Southwest

Jun 13

ISP5:35 pmIslip Long Island

5h 25m

1 stop

MIA11:00 pmMiami

Jun 16

MIA5:50 pmMiami

4h 45m

1 stop

ISP10:35 pmIslip Long Island

$299

Southwest

Jun 13

ISP2:45 pmIslip Long Island

7h 20m

2 stops

MIA10:05 pmMiami

Jun 16

MIA5:50 pmMiami

4h 45m

1 stop

ISP10:35 pmIslip Long Island

$304

Southwest

Jul 8

ISP4:40 pmIslip Long Island

4h 45m

1 stop

MIA9:25 pmMiami

Aug 8

MIA6:30 amMiami

5h 35m

1 stop

ISP12:05 pmIslip Long Island

$318

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

Aug 2

ISP5:50 pmIslip Long Island

18h 41m

2 stops

EYW12:31 pmKey West

Aug 6

EYW11:04 amKey West

6h 06m

2 stops

ISP5:10 pmIslip Long Island

$699

Breeze Airways

Sep 19

ISP12:00 pmIslip Long Island

23h 21m

2 stops

EYW11:21 amKey West

Sep 21

EYW11:59 amKey West

23h 21m

1 stop

ISP11:20 amIslip Long Island

$748

Breeze Airways

Aug 14

ISP8:43 pmIslip Long Island

46h 30m

2 stops

EYW7:13 pmKey West

Aug 19

EYW11:46 amKey West

30h 20m

2 stops

ISP6:06 pmIslip Long Island

$788

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

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 8/22

11:57 am-10:16 am

1 stop22h 19m

Miami

Sat 8/29

5:05 am-11:17 am

1 stop6h 12m

$298

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 6/13

5:35 pm-11:00 pm

1 stop5h 25m

Miami

Tue 6/16

5:50 pm-10:35 pm

1 stop4h 45m

$299

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 6/13

2:45 pm-10:05 pm

2 stops7h 20m

Miami

Tue 6/16

5:50 pm-10:35 pm

1 stop4h 45m

$304

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Wed 7/8

4:40 pm-9:25 pm

1 stop4h 45m

Miami

Sat 8/8

6:30 am-12:05 pm

1 stop5h 35m

$318

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Tue 6/16

2:55 pm-10:10 pm

2 stops7h 15m

Miami

Tue 6/23

6:35 am-11:50 am

1 stop5h 15m

$323

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 8/22

11:55 am-7:55 pm

2 stops8h 00m

Miami

Sat 8/29

9:40 am-2:30 pm

1 stop4h 50m

$324

Quickest round-trip

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Fri 9/4

5:00 pm-10:05 pm

1 stop5h 05m

Miami

Mon 9/7

7:00 am-11:55 am

1 stop4h 55m

$328

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Thu 6/11

9:52 pm-11:27 am

1 stop13h 35m

Key West

Mon 6/15

12:07 pm-3:56 pm

1 stop27h 49m

$336

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Tue 6/16

2:55 pm-9:20 pm

1 stop6h 25m

Miami

Tue 6/23

6:35 am-11:50 am

1 stop5h 15m

$338

IslipKey West

ISP - EYW

ISPEYW

Islip Long Island

Sun 8/2

5:50 pm-12:31 pm

2 stops18h 41m

Key West

Thu 8/6

11:04 am-5:10 pm

2 stops6h 06m

$699

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 February is another great option to travel to Florida Keys, with average flight prices from Islip, New York averaging around $60.

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 50m
Direct flights	None

The fastest flight from Islip, New York to Florida Keys takes 4h 50m

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 May 2026, there are 3 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 22.87% of the total bookings. Other popular models include Airbus A220-300 with 15.47%, Airbus A320neo with 11.85%, and Airbus A321neo with 11.40%.

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.