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$99+ Cheap flights from Miami to Islip (MIA - ISP)

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — ISP
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Miami to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$257
(Southwest)

One-way from

$99
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$285
From Miami to Islip Long Island
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One-way flight from Miami to Islip Long Island
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Highest demand for flights based on searches. 16% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Miami to Islip

Cheapest flights from Miami to Islip
Explore the most affordable flight options available from Miami to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/307:07 pmMIA - ISP
2 stops15h 30mFrontier
dom. 11/29:27 pmISP - MIA
2 stops20h 40mFrontier
Deal found 9/14$224
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/84:05 pmMIA - ISP
2 stops16h 59mFrontier
jue. 10/169:37 pmISP - MIA
2 stops18h 26mFrontier
Deal found 9/15$226
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/84:05 pmMIA - ISP
2 stops16h 59mFrontier
lun. 10/209:49 amISP - MIA
2 stops14h 45mFrontier
Deal found 9/15$229
This Southwest deal was found by Cheapflights users on 9/17. 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.
jue. 10/167:05 amMIA - ISP
1 stop7h 30mSouthwest
lun. 10/205:55 amISP - MIA
1 stop6h 00mSouthwest
Deal found 9/17$257
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/151:58 pmMIA - ISP
2 stops18h 04mFrontier
lun. 11/179:54 amISP - MIA
2 stops14h 40mFrontier
Deal found 9/15$258
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/115:47 pmMIA - ISP
2 stops15h 12mFrontier
dom. 10/129:47 pmISP - MIA
2 stops17h 29mFrontier
Deal found 9/15$259
This Southwest deal was found by Cheapflights users on 9/15. 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.
jue. 12/117:10 amMIA - ISP
1 stop8h 10mSouthwest
lun. 12/153:55 pmISP - MIA
1 stop4h 50mSouthwest
Deal found 9/15$262
This Southwest deal was found by Cheapflights users on 9/15. 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.
vie. 10/247:05 amMIA - ISP
1 stop7h 30mSouthwest
mar. 10/2811:40 amISP - MIA
2 stops10h 35mSouthwest
Deal found 9/15$272
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/147:07 pmMIA - ISP
2 stops15h 30mFrontier
dom. 11/169:27 pmISP - MIA
2 stops12h 44mFrontier
Deal found 9/15$275
This Southwest deal was found by Cheapflights users on 9/14. 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.
mar. 10/2111:45 amMIA - ISP
1 stop4h 20mSouthwest
dom. 10/265:25 amISP - MIA
1 stop5h 15mSouthwest
Deal found 9/14$287
This Southwest deal was found by Cheapflights users on 9/14. 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.
jue. 10/307:05 pmMIA - ISP
1 stop4h 40mSouthwest
dom. 11/21:40 pmISP - MIA
2 stops8h 25mSouthwest
Deal found 9/14$292

Cheapflights Fare Finder

 
Customize your flight search to find flights from Miami to Islip 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Miami to Islip that are best for you.

Fly from

Miami

Fly to

Islip

Route

Depart

Return

Price

MiamiIslip

MIA - ISP

MIAISP

Miami

jue. 10/30

7:07 pm-10:37 am

2 stops15h 30m

Islip Long Island

dom. 11/2

9:27 pm-6:07 pm

2 stops20h 40m

$224

MiamiIslip

MIA - ISP

MIAISP

Miami

mié. 10/8

4:05 pm-9:04 am

2 stops16h 59m

Islip Long Island

jue. 10/16

9:37 pm-4:03 pm

2 stops18h 26m

$226

MiamiIslip

MIA - ISP

MIAISP

Miami

sáb. 10/11

5:47 pm-8:59 am

2 stops15h 12m

Islip Long Island

jue. 10/16

9:37 pm-4:03 pm

2 stops18h 26m

$226

MiamiIslip

MIA - ISP

MIAISP

Miami

lun. 10/13

4:21 pm-9:44 am

2 stops17h 23m

Islip Long Island

lun. 10/20

9:49 am-12:34 am

2 stops14h 45m

$229

MiamiIslip

MIA - ISP

MIAISP

Miami

sáb. 10/11

5:47 pm-8:59 am

2 stops15h 12m

Islip Long Island

lun. 10/20

9:49 am-12:34 am

2 stops14h 45m

$229

MiamiIslip

MIA - ISP

MIAISP

Miami

jue. 10/16

7:05 am-2:35 pm

1 stop7h 30m

Islip Long Island

lun. 10/20

5:55 am-11:55 am

1 stop6h 00m

$257

MiamiIslip

MIA - ISP

MIAISP

Miami

sáb. 11/15

6:25 am-11:50 am

1 stop5h 25m

Islip Long Island

lun. 11/17

3:55 pm-8:45 pm

1 stop4h 50m

$257

MiamiIslip

MIA - ISP

MIAISP

Miami

sáb. 12/13

9:55 am-3:00 pm

1 stop5h 05m

Islip Long Island

lun. 12/15

3:40 pm-9:50 pm

1 stop6h 10m

$257

MiamiIslip

MIA - ISP

MIAISP

Miami

sáb. 10/11

5:47 pm-8:59 am

2 stops15h 12m

Islip Long Island

dom. 10/12

9:47 pm-3:16 pm

2 stops17h 29m

$259

MiamiIslip

MIA - ISP

MIAISP

Miami

vie. 12/12

6:30 pm-11:50 pm

1 stop5h 20m

Islip Long Island

lun. 12/15

6:15 am-12:05 pm

1 stop5h 50m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 17 results
1
2

Best time to book a flight from Miami to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Miami 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.

Cheapflights Insights

Everything you need to know about your flight from Miami to Islip

What is the cheapest month to book a flight from Miami to Islip?

Currently, January is the cheapest month in which you can book a flight from Miami to Islip (average of $108). Flying from Miami to Islip in November is currently the most expensive (average of $213). 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 MIA to ISP?

Find hourly flight availability from Miami to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

One of the essential ways to save on airfare from Miami to Islip is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 60% on airfare.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated septiembre 17, 2025.
See what other customers who have flown with Southwest and Frontier from Miami to Islip have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How long is the flight from Miami to Islip?

    There are many flights that can get you from Miami to Islip in 15h 30m. Fly via Frontier to get the fastest option. There are 1114 mi between Miami and Islip.

  • What are the cheapest airlines flying from Miami to Islip round-trip?

    Flying on Frontier is currently your cheapest option to Islip, with prices starting at $58. Another option worth looking into is Southwest, starting at $242 round trip. Frontier is priced at 82% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Miami to Islip?

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

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

    Yes. Cheapflights offers flight deals from Miami to Islip 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 Miami to Islip?

    Currently, January is the cheapest month in which you can book a flight from Miami to Islip (average of $108). Flying from Miami to Islip in November is currently the most expensive (average of $213). 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.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for Miami to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Miami to Islip

Discover the top 2 airlines that operate flights from Miami to Islip. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$126FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$242Average$357FlexibilityNo cancel feeOn-time63%

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