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Islip

$90+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ISP
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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Cheap 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 janeiro 28, 2026.

This Frontier deal was found by Cheapflights users on 1/26. 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.
qui 3/511:59 pm
LAS
-
ISP
1 stop9h 48m
Frontier
seg 3/91:22 pm
ISP
-
LAS
1 stop12h 27m
Frontier
Deal found 1/26$269
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
qui 2/127:05 am
LAS
-
ISP
2 stops33h 09m
Frontier
seg 2/163:34 pm
ISP
-
LAS
1 stop21h 41m
Frontier
Deal found 1/27$397
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 2/1011:03 pm
LAS
-
ISP
1 stop11h 10m
Frontier
qui 2/123:34 pm
ISP
-
LAS
1 stop21h 41m
Frontier
Deal found 1/27$420
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
ter 2/1011:03 pm
LAS
-
ISP
1 stop11h 10m
Multiple Airlines
qui 2/127:26 pm
ISP
-
LAS
2 stops30h 24m
Multiple Airlines
Deal found 1/27$452
This Southwest deal was found by Cheapflights users on 1/27. 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.
seg 6/86:55 am
LAS
-
ISP
1 stop7h 20m
Southwest
ter 6/306:00 am
ISP
-
LAS
1 stop7h 30m
Southwest
Deal found 1/27$467
This JetBlue deal was found by Cheapflights users on 1/25. 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.
qui 2/269:30 pm
LAS
-
ISP
1 stop8h 17m
JetBlue
seg 3/21:22 pm
ISP
-
LAS
1 stop12h 27m
JetBlue
Deal found 1/25$471
This Southwest deal was found by Cheapflights users on 1/27. 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.
qui 2/129:35 am
LAS
-
ISP
2 stops10h 55m
Southwest
seg 2/161:10 pm
ISP
-
LAS
2 stops12h 05m
Southwest
Deal found 1/27$577
This Southwest deal was found by Cheapflights users on 1/27. 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.
ter 2/108:55 am
LAS
-
ISP
2 stops10h 00m
Southwest
qui 2/125:35 am
ISP
-
LAS
2 stops11h 05m
Southwest
Deal found 1/27$637

Find 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 janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Frontier)

One-way from

$90
(Frontier)

Popular in

June

Cheapest in

March

Average price

$586
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Islip Long Island flights.
Search Deals
From Las Vegas Harry Reid Intl to Islip Long Island
Search Deals
One-way flight from Las Vegas Harry Reid Intl to Islip Long Island
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 janeiro 28, 2026.
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

qui 3/5

11:59 pm-12:47 pm

1 stop9h 48m

Islip Long Island

seg 3/9

1:22 pm-10:49 pm

1 stop12h 27m

$269

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

qui 2/12

7:05 am-7:14 pm

2 stops33h 09m

Islip Long Island

seg 2/16

3:34 pm-10:15 am

1 stop21h 41m

$397

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

ter 2/10

11:03 pm-1:13 pm

1 stop11h 10m

Islip Long Island

qui 2/12

3:34 pm-10:15 am

1 stop21h 41m

$420

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

ter 2/10

11:03 pm-1:13 pm

1 stop11h 10m

Islip Long Island

qui 2/12

7:26 pm-10:50 pm

2 stops30h 24m

$452

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

seg 6/8

6:55 am-5:15 pm

1 stop7h 20m

Islip Long Island

ter 6/30

6:00 am-10:30 am

1 stop7h 30m

$467

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

qui 2/26

9:30 pm-8:47 am

1 stop8h 17m

Islip Long Island

seg 3/2

1:22 pm-10:49 pm

1 stop12h 27m

$471

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

qui 2/12

9:35 am-11:30 pm

2 stops10h 55m

Islip Long Island

seg 2/16

1:10 pm-10:15 pm

2 stops12h 05m

$577

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

ter 2/10

8:55 am-9:55 pm

2 stops10h 00m

Islip Long Island

qui 2/12

5:35 am-1:40 pm

2 stops11h 05m

$637

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

seg 2/23

11:03 pm-8:40 am

1 stop30h 37m

$90

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

qui 4/23

11:34 pm-2:55 pm

1 stop12h 21m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 18 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 $49). Flying from Las Vegas to Islip, New York in July is currently the most expensive (average of $130). 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.

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 janeiro 28, 2026.
Read through reviews of airlines operating flights from Las Vegas to Islip, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

  • How long is the flight from Las Vegas to Islip, New York?

    Departing from Las Vegas to Islip, New York will take you 9h 48m. Las Vegas and Islip, New York are separated by a distance of 2275 mi.

  • What is the cheapest airline to fly from Las Vegas to Islip, New York round-trip?

    Our cheapest airline available from Las Vegas to Islip, New York is Southwest. Our recent data shows that you can find tickets from as low as $356 on this airline. Users have found that Southwest is 26% cheaper than the other options available to this destination.

  • 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 $49). Flying from Las Vegas to Islip, New York in July is currently the most expensive (average of $130). 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

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Alternative routes for Las Vegas to Islip

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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 janeiro 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$356Average$484FlexibilityNo cancel feeOn-time63%

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