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$393+ Cheap flights from Islip (ISP) to Cancún (CUN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — CUN
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheap flight deals from Islip to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Cancún (CUN). 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 September 19, 2025.

Round-trip from

$393
(Priceline)

Popular in

April

Cheapest in

September

Average price

$345
From Islip Long Island to Cancun
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 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 Islip to Cancún

Cheapest flights from Islip to Cancún
Explore the most affordable flight options available from Islip to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This Priceline deal was found by Cheapflights users on 9/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:31 pmISP - CUN
1 stop22h 49mJetBlue
Fri 10/179:45 amCUN - ISP
1 stop24h 05mJetBlue
Deal found 9/18$393
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:58 pmISP - CUN
1 stop16h 06mMultiple Airlines
Fri 10/179:09 amCUN - ISP
1 stop24h 28mMultiple Airlines
Deal found 9/17$415
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:27 pmISP - CUN
1 stop11h 37mMultiple Airlines
Sun 11/912:45 pmCUN - ISP
2 stops21h 52mMultiple Airlines
Deal found 9/18$452
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:58 pmISP - CUN
1 stop17h 06mMultiple Airlines
Sat 11/810:15 amCUN - ISP
2 stops27h 24mMultiple Airlines
Deal found 9/17$455
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:45 amISP - CUN
1 stop22h 23mJetBlue
Tue 12/1611:30 amCUN - ISP
1 stop23h 35mJetBlue
Deal found 9/17$462
This Frontier deal was found by Cheapflights users on 9/18. 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.
Sun 10/269:47 pmISP - CUN
2 stops15h 39mFrontier
Sat 11/11:30 pmCUN - ISP
2 stops18h 32mFrontier
Deal found 9/18$480
This Frontier deal was found by Cheapflights users on 9/16. 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.
Wed 12/38:09 pmISP - CUN
2 stops19h 49mFrontier
Sun 12/711:38 amCUN - ISP
2 stops21h 33mFrontier
Deal found 9/16$522
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:57 pmISP - CUN
1 stop23h 19mJetBlue
Mon 11/1710:23 amCUN - ISP
1 stop23h 32mJetBlue
Deal found 9/17$527
This Frontier deal was found by Cheapflights users on 9/16. 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.
Thu 12/49:09 pmISP - CUN
2 stops18h 49mFrontier
Sun 12/711:38 amCUN - ISP
2 stops21h 33mFrontier
Deal found 9/16$532
This Frontier deal was found by Cheapflights users on 9/18. 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.
Sun 11/29:27 pmISP - CUN
2 stops15h 53mFrontier
Sun 11/92:30 pmCUN - ISP
2 stops18h 39mFrontier
Deal found 9/18$557

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Cancún 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 September 19, 2025.
Use the filters below to find and compare flights from Islip to Cancún that are best for you.

Fly from

Islip

Fly to

Cancún

Route

Depart

Return

Price

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sat 10/11

4:31 pm-2:20 pm

1 stop22h 49m

Cancun

Fri 10/17

9:45 am-10:50 am

1 stop24h 05m

$393

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sat 10/11

4:58 pm-8:04 am

1 stop16h 06m

Cancun

Fri 10/17

9:09 am-10:37 am

1 stop24h 28m

$415

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sun 11/2

9:27 pm-9:04 am

1 stop11h 37m

Cancun

Sun 11/9

12:45 pm-10:37 am

2 stops21h 52m

$452

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sat 11/1

4:58 pm-9:04 am

1 stop17h 06m

Cancun

Sat 11/8

10:15 am-1:39 pm

2 stops27h 24m

$455

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Wed 12/3

8:09 pm-3:58 pm

2 stops19h 49m

Cancun

Sun 12/7

11:38 am-9:11 am

2 stops21h 33m

$522

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Fri 11/14

1:57 pm-1:16 pm

1 stop23h 19m

Cancun

Mon 11/17

10:23 am-9:55 am

1 stop23h 32m

$527

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Thu 12/4

9:09 pm-3:58 pm

2 stops18h 49m

Cancun

Sun 12/7

11:38 am-9:11 am

2 stops21h 33m

$532

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sun 11/2

9:27 pm-1:20 pm

2 stops15h 53m

Cancun

Sun 11/9

2:30 pm-9:09 am

2 stops18h 39m

$557

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Sat 12/6

8:01 pm-3:58 pm

2 stops19h 57m

Cancun

Sun 12/14

11:38 am-9:11 am

2 stops21h 33m

$601

IslipCancún

ISP - CUN

ISPCUN

Islip Long Island

Fri 12/19

7:00 am-4:13 pm

1 stop9h 13m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 11 results
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Best time to book a flight from Islip to Cancún

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

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Islip to Cancún (average of $360). Flying from Islip to Cancún in March is currently the most expensive (average of $492). 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 CUN?

Find hourly flight availability from Islip to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Islip to Cancún. 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 Islip to Cancún?

    For as low as $393, JetBlue can have you in Cancún from Islip in 22h 49m. Islip and Cancún are separated by a distance of 1585 mi.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Islip to Cancún (average of $360). Flying from Islip to Cancún in March is currently the most expensive (average of $492). 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 Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

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