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Key Largo

$99+ Cheap flights from Islip, NY (ISP) to Key Largo, FL

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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MIA
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Islip Long Island to Key Largo are usually found in July or June, booked 23 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Islip to Key Largo

Keep the following information in mind while searching for Islip to Key Largo flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Mytrip)

One-way from

$99
(Mytrip)

Popular in

December

Cheapest in

July

Average price

$373
Provider with most accurate pricing for New York (NYC)-Miami flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Miami flights.
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From Islip Long Island to Key Largo
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One-way flight from Islip Long Island to Key Largo
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Highest demand for flights based on searches. 18% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Islip to Key Largo

Cheapest flights from Islip to Key Largo
Explore the most affordable flight options available from Islip to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 3/292:35 pmISP - MIA
2 stops10h 24mMultiple Airlines
Tue 4/110:16 pmMIA - ISP
2 stops15h 39mMultiple Airlines
Deal found 2/20$217
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/111:45 amISP - MIA
Nonstop3h 10mSouthwest
Thu 4/312:50 pmMIA - ISP
Nonstop2h 55mSouthwest
Deal found 2/20$227
This JetBlue deal was found by Cheapflights users on 2/20. 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.
Tue 5/276:00 amISP - MIA
1 stop8h 26mJetBlue
Thu 6/53:23 pmMIA - ISP
1 stop5h 45mJetBlue
Deal found 2/20$353

Find flights from Islip to Key Largo within your budget

Customize your flight search to find flights from Islip to Key Largo 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 February 20, 2025.

Fly from

Islip

Fly to

Key Largo

Route

Depart

Return

Price

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 3/29

2:35 pm-12:59 am

2 stops10h 24m

Miami

Tue 4/1

10:16 pm-1:55 pm

2 stops15h 39m

$217

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Tue 4/1

11:45 am-2:55 pm

Nonstop3h 10m

Miami

Thu 4/3

12:50 pm-3:45 pm

Nonstop2h 55m

$227

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Tue 5/27

6:00 am-2:26 pm

1 stop8h 26m

Miami

Thu 6/5

3:23 pm-9:08 pm

1 stop5h 45m

$353

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Sat 3/29

2:35 pm-12:59 am

2 stops10h 24m

$99

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Thu 3/13

2:20 pm-5:25 pm

Nonstop3h 05m

$114

IslipMiami

ISP - MIA

ISPMIA

Islip Long Island

Mon 5/19

6:00 am-2:26 pm

1 stop8h 26m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Islip to Key Largo

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

Travel insights for flights from Islip to Key Largo

Get recent, data-driven insights about flights from Islip to Key Largo including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Islip, New York to Key Largo?

Use this chart to determine the optimal time to book a round-trip flight from Islip to Key Largo. Price data was last updated on February 14, 2025.

The best time to book flights from Islip, New York to Key Largo is 23 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Islip, New York to Key Largo (average of $231). Flying from Islip, New York to Key Largo in March is currently the most expensive (average of $289). 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.

What is the cheapest time of day to fly from ISP to KE9?

Find hourly flight availability from Islip to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Key Largo as you normally would.

What is the cheapest day to fly from Islip, New York to Key Largo?

Use this chart to determine the cheapest time to fly round-trip from Islip to Key Largo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Islip, New York to Key Largo flight should consider departing on Monday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Key Largo by month

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

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

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

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July 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 68.0 F).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Largo. Reviews last updated February 20, 2025.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

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

  • What airport do you fly from for flights from Islip to Key Largo?

    For a flight from Islip to Key Largo, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city. Long Island is the only Islip airport and it handles 0 outbound flights to Key Largo per day. 5 airlines have flights to Key Largo from Islip Long Island on a regular basis.

  • How popular is this Islip, New York to Key Largo flight route?

    This flight path from Islip Long Island to Key Largo was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest flights from Islip, New York to Key Largo?

    While on average a flight from Islip, New York to Key Largo is generally $313, our data shows the cheapest flight currently is $113. When looking at the most popular route, (Islip Long Island - Miami), you can expect to pay $227 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Islip, New York to Key Largo (average of $231). Flying from Islip, New York to Key Largo in March is currently the most expensive (average of $289). 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.

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Islip to Key Largo

Discover the top 5 airlines that operate flights from Islip to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$155FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$68Average$180FlexibilityNo cancel feeOn-time65%
DeltaCheapest$98Average$320FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$108Average$307FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$246Average$414FlexibilityNo cancel feeOn-time63%
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