Las Vegas

$158+ Cheap flights from Islip, NY to Las Vegas (ISP - LAS)

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAS
Jul 5 — Jul 121
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Cheap flight deals from Islip to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Las Vegas (LAS). 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 30, 2025.

Round-trip from

$311
(JetBlue)

One-way from

$158
(Frontier)

Popular in

December

Cheapest in

October

Average price

$464
From Islip Long Island to Las Vegas Harry Reid Intl
One-way flight from Islip Long Island to Las Vegas Harry Reid Intl
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in June 2025

Find flight deals from Islip to Las Vegas

Cheapest flights from Islip to Las Vegas
Explore the most affordable flight options available from Islip to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

This JetBlue deal was found by Cheapflights users on 6/28. 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.
Wed 11/512:15 pmISP - LAS
1 stop10h 46mJetBlue
Tue 11/1110:10 pmLAS - ISP
1 stop8h 32mJetBlue
Deal found 6/28$311
This FlightHub deal was found by Cheapflights users on 6/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/238:37 pmISP - LAS
1 stop27h 45mFrontier
Wed 7/303:34 pmLAS - ISP
1 stop29h 13mFrontier
Deal found 6/29$315
This Southwest deal was found by Cheapflights users on 6/29. 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 10/135:35 pmISP - LAS
1 stop9h 30mSouthwest
Thu 10/166:45 amLAS - ISP
1 stop7h 05mSouthwest
Deal found 6/29$351
This Trip.com deal was found by Cheapflights users on 6/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/84:45 pmISP - LAS
1 stop19h 27mMultiple Airlines
Thu 7/1012:52 amLAS - ISP
1 stop15h 50mMultiple Airlines
Deal found 6/28$422

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to Las Vegas 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 30, 2025.
Use the filters below to find and compare flights from Islip to Las Vegas that are best for you.

Fly from

Islip

Fly to

Las Vegas

Route

Depart

Return

Price

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 11/5

12:15 pm-8:01 pm

1 stop10h 46m

Las Vegas Harry Reid Intl

Tue 11/11

10:10 pm-9:42 am

1 stop8h 32m

$311

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 7/23

8:37 pm-9:22 pm

1 stop27h 45m

Las Vegas Harry Reid Intl

Wed 7/30

3:34 pm-11:47 pm

1 stop29h 13m

$315

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/13

5:35 pm-12:05 am

1 stop9h 30m

Las Vegas Harry Reid Intl

Thu 10/16

6:45 am-4:50 pm

1 stop7h 05m

$351

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 7/14

8:38 pm-11:29 pm

1 stop29h 51m

Las Vegas Harry Reid Intl

Thu 7/17

12:52 am-7:42 pm

1 stop15h 50m

$438

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 8/26

6:05 am-3:52 pm

2 stops12h 47m

$158

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 9/8

11:35 am-10:28 pm

1 stop13h 53m

$171

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 9/8

3:05 pm-10:30 pm

2 stops10h 25m

$181

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 7/14

3:59 pm-6:03 pm

3 stops29h 04m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Islip to Las Vegas

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

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

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Las Vegas (average of $198). Flying from Islip, New York to Las Vegas in March is currently the most expensive (average of $269). 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 LAS?

Find hourly flight availability from Islip to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

When flying from Islip, New York to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 15% versus a flight in the morning.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated June 30, 2025.
See what other customers who have flown with Southwest, JetBlue, and Frontier from Islip to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Comfort

8.0

Entertainment

7.6

Overall

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Islip to Las Vegas. 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 Islip, New York to Las Vegas round-trip?

    Flying on JetBlue is currently your cheapest option to Las Vegas, with prices starting at $311. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $315 and $351, respectively. These flights start at 32% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from Islip, New York to Las Vegas for a low price.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Las Vegas (average of $198). Flying from Islip, New York to Las Vegas in March is currently the most expensive (average of $269). 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
Henderson
Paradise
Sunrise Manor
North Las Vegas
Winchester
Primm
Mount Charleston
Kingman
Mesquite
Needles
Boulder City

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Top 2 airlines flying from Islip to Las Vegas

Discover the top 2 airlines that operate flights from Islip to Las Vegas. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$176Average$246FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$392Average$490FlexibilityNo cancel feeOn-time63%

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