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$150+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ISP
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(Booking.com)

One-way from

$150
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$259
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Islip Long Island flights.
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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. 18% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Booking.com deal was found by Cheapflights users on 3/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/211:49 pmLAS - ISP
1 stop17h 25mFrontier
Fri 4/49:04 pmISP - LAS
1 stop28h 39mFrontier
Deal found 3/25$298
This Southwest deal was found by Cheapflights users on 3/25. 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.
Thu 7/179:45 pmLAS - ISP
1 stop8h 40mSouthwest
Mon 7/2110:00 amISP - LAS
1 stop10h 10mSouthwest
Deal found 3/25$427
This JetBlue deal was found by Cheapflights users on 3/25. 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.
Fri 10/310:40 amLAS - ISP
1 stop8h 00mJetBlue
Fri 10/176:00 amISP - LAS
1 stop11h 27mJetBlue
Deal found 3/25$455
This Gotogate deal was found by Cheapflights users on 3/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/212:42 pmLAS - ISP
3 stops18h 29mMultiple Airlines
Fri 4/49:04 pmISP - LAS
1 stop28h 39mMultiple Airlines
Deal found 3/25$565
This KAYAK deal was found by Cheapflights users on 3/25. 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.
Fri 6/1312:01 pmLAS - ISP
2 stops22h 31mBreeze Airways
Mon 6/3010:44 amISP - LAS
1 stop27h 34mBreeze Airways
Deal found 3/25$850

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 March 26, 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

Wed 4/9

11:49 pm-8:10 am

1 stop29h 21m

Islip Long Island

Sun 4/13

8:04 pm-10:43 pm

1 stop29h 39m

$358

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 7/17

9:45 pm-9:25 am

1 stop8h 40m

Islip Long Island

Mon 7/21

10:00 am-5:10 pm

1 stop10h 10m

$427

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 4/9

2:45 pm-12:16 pm

2 stops18h 31m

Islip Long Island

Sun 4/13

12:56 pm-11:03 pm

2 stops13h 07m

$670

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Fri 6/13

12:01 pm-1:32 pm

2 stops22h 31m

Islip Long Island

Mon 6/30

10:44 am-11:18 am

1 stop27h 34m

$850

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 6/2

9:55 am-9:28 pm

1 stop8h 33m

Islip Long Island

Sun 6/8

6:00 am-2:11 pm

1 stop11h 11m

$988

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Sat 4/5

11:18 pm-8:10 am

1 stop29h 52m

$150

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 5/28

9:55 am-9:28 pm

1 stop8h 33m

$214

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Fri 6/6

7:25 am-8:35 pm

2 stops10h 10m

$219

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 4/24

1:07 am-1:55 pm

3 stops33h 48m

$337

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 5/28

12:30 pm-6:59 pm

3 stops27h 29m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Compare providers for flights from Las Vegas to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Las Vegas to Islip in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Las Vegas-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Las Vegas-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Las Vegas-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 26, 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 March 26, 2025.
Southwest
8.1
Very good
4,273 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Breeze Airways
8.0
Very good
156 reviews
Southwest
8.1
Very good
4,273 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,922 reviews
Southwest
8.1
Very good
4,273 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,272 reviews
Southwest
8.1
Very good
4,273 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $358 on this airline. Additional options worth looking into are Southwest and Breeze Airways, starting at $427 and $850 round-trip.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $150. Users have also found prices from $214 and $219 on JetBlue and Southwest, 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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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$388Average$556FlexibilityNo cancel feeOn-time63%
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