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$142+ Cheap flights from Las Vegas to Islip, NY (LAS - 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ISP
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Las Vegas to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) 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 June 12, 2025.

Round-trip from

$332
(Frontier)

One-way from

$142
(JetBlue)

Popular in

December

Cheapest in

March

Average price

$571
From Las Vegas Harry Reid Intl to Islip Long Island
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One-way flight from Las Vegas Harry Reid Intl to Islip Long Island
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Highest demand for flights based on searches. 15% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Las Vegas to Islip

Cheapest flights from Las Vegas to Islip
Explore the most affordable flight options available from Las Vegas to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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.
Tue 10/710:22 pmLAS - ISP
1 stop9h 15mFrontier
Mon 10/138:48 pmISP - LAS
1 stop15h 54mFrontier
Deal found 6/11$332
This Southwest deal was found by Cheapflights users on 6/12. 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.
Mon 11/1011:40 pmLAS - ISP
2 stops9h 35mSouthwest
Fri 11/145:30 pmISP - LAS
1 stop8h 45mSouthwest
Deal found 6/12$339
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Wed 7/2312:20 amLAS - ISP
3 stops30h 44mMultiple Airlines
Mon 7/2810:44 amISP - LAS
2 stops24h 54mMultiple Airlines
Deal found 6/10$629
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/112:04 pmLAS - ISP
2 stops22h 28mBreeze Airways
Thu 7/317:39 pmISP - LAS
3 stops18h 37mBreeze Airways
Deal found 6/10$823

Cheapflights Fare Finder

Customize your flight search to find flights from Las Vegas 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 June 12, 2025.
Use the filters below to find and compare flights from Las Vegas to Islip that are best for you.

Fly from

Las Vegas

Fly to

Islip

Route

Depart

Return

Price

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 10/7

10:22 pm-10:37 am

1 stop9h 15m

Islip Long Island

Mon 10/13

8:48 pm-9:42 am

1 stop15h 54m

$332

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 11/10

11:40 pm-12:15 pm

2 stops9h 35m

Islip Long Island

Fri 11/14

5:30 pm-11:15 pm

1 stop8h 45m

$339

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 7/23

12:20 am-10:04 am

3 stops30h 44m

Islip Long Island

Mon 7/28

10:44 am-8:38 am

2 stops24h 54m

$629

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 7/1

12:04 pm-1:32 pm

2 stops22h 28m

Islip Long Island

Thu 7/31

7:39 pm-11:16 am

3 stops18h 37m

$823

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 7/22

11:58 pm-11:41 am

1 stop8h 43m

$142

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 11/10

11:40 pm-12:15 pm

2 stops9h 35m

$154

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 9/18

10:22 pm-10:37 am

1 stop9h 15m

$178

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 6/26

9:54 pm-7:36 pm

1 stop18h 42m

$187

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Fri 8/1

12:01 pm-1:32 pm

2 stops22h 31m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Las Vegas to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Las Vegas 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 Las Vegas to Islip

What is the cheapest month to book a flight from Las Vegas to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Islip, New York (average of $108). Flying from Las Vegas to Islip, New York 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 LAS to ISP?

Find hourly flight availability from Las Vegas 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 June 12, 2025.

It’s optimal to fly from Las Vegas to Islip, New York at noon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.

Rainfall in Islip by month

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

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

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

If weather is an important factor for your trip to Islip, New York, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
5.9
Fair
3,295 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Comfort

8.2

Food

6.7

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

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

  • What are the cheapest airlines flying from Las Vegas to Islip, New York round-trip?

    Our cheapest airline available from Las Vegas to Islip, New York is Frontier. Our recent data shows that you can find tickets from as low as $332 on this airline. Additional options worth looking into are Southwest and Breeze Airways, starting at $339 and $823 round-trip. Users have found that Frontier is 26% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Las Vegas to Islip, New York one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $142. Users have also found prices from $154 and $178 on Southwest and Frontier, respectively.

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

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

  • How can I find direct flights from Las Vegas to Islip?

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

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

    Yes. Cheapflights offers flight deals from Las Vegas 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 Las Vegas to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Islip, New York (average of $108). Flying from Las Vegas to Islip, New York 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.

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Alternative routes for Las Vegas to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Las Vegas to Islip

Discover the top airline that operate flights from Las Vegas 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$356Average$506FlexibilityNo cancel feeOn-time63%

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