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$149+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAS
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 junio 12, 2025.

Round-trip from

$337
(Booking.com)

One-way from

$149
(Southwest)

Popular in

December

Cheapest in

October

Average price

$464
From Islip Long Island to Las Vegas Harry Reid Intl
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One-way flight from Islip Long Island to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 10% potential increase in price ($54 potential increase over avg. RT price).
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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 June 2025
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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 junio 12, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/307:33 pmISP - LAS
1 stop17h 03mFrontier
vie. 9/510:22 pmLAS - ISP
1 stop9h 15mFrontier
Deal found 6/12$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/174:00 pmISP - LAS
2 stops9h 45mSouthwest
vie. 9/1911:25 pmLAS - ISP
2 stops9h 35mSouthwest
Deal found 6/11$341
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/12:39 pmISP - LAS
1 stop11h 10mJetBlue
lun. 7/711:58 pmLAS - ISP
1 stop8h 43mJetBlue
Deal found 6/10$500
This Trip.com deal was found by Cheapflights users on 6/9. 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.
lun. 8/48:38 pmISP - LAS
2 stops19h 11mMultiple Airlines
mar. 8/512:52 amLAS - ISP
1 stop16h 00mMultiple Airlines
Deal found 6/9$503

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 junio 12, 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

sáb. 8/30

7:33 pm-9:36 am

1 stop17h 03m

Las Vegas Harry Reid Intl

vie. 9/5

4:42 pm-10:37 am

1 stop14h 55m

$337

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

mié. 9/17

4:00 pm-10:45 pm

2 stops9h 45m

Las Vegas Harry Reid Intl

vie. 9/19

11:25 pm-12:00 pm

2 stops9h 35m

$341

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

mar. 7/1

2:39 pm-10:49 pm

1 stop11h 10m

Las Vegas Harry Reid Intl

lun. 7/7

11:58 pm-11:41 am

1 stop8h 43m

$500

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

lun. 8/4

8:38 pm-12:49 pm

2 stops19h 11m

Las Vegas Harry Reid Intl

mar. 8/5

12:52 am-7:52 pm

1 stop16h 00m

$503

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

lun. 8/18

10:44 am-11:18 am

1 stop27h 34m

Las Vegas Harry Reid Intl

jue. 8/28

12:03 pm-10:04 am

1 stop19h 01m

$661

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

lun. 8/25

8:59 am-3:29 pm

1 stop9h 30m

$176

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

vie. 8/15

3:05 pm-10:45 pm

2 stops10h 40m

$191

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

dom. 6/22

2:39 pm-10:49 pm

1 stop11h 10m

$282

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

vie. 6/20

3:59 pm-9:49 pm

2 stops32h 50m

$311

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

lun. 7/14

10:44 am-11:18 am

1 stop27h 34m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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 junio 12, 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.

Rainfall in Las Vegas by month

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

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

Temperature in Las Vegas by month

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

If weather is an important factor for your trip to Las Vegas, 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 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 junio 12, 2025.
See what other customers who have flown with Breeze Airways, Southwest and JetBlue from Islip to Las Vegas have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Overall

8.1

Boarding

8.3

Comfort

8.2

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

Food

6.7

Entertainment

6.6

Overall

8.1

Boarding

8.3

Comfort

8.2

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

Food

6.7

Entertainment

6.6

Overall

8.1

Boarding

8.3

Comfort

8.2

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

Food

6.7

Entertainment

6.6

Overall

8.1

Boarding

8.3

Comfort

8.2

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

Food

6.7

Entertainment

6.6

Overall

8.1

Boarding

8.3

Comfort

8.2

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 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 Frontier is currently your cheapest option to Las Vegas, with prices starting at $337. Additional round-trip tickets that might be worth considering are offered by Southwest and JetBlue, with the lowest prices starting at $341 and $500, respectively. These flights start at 27% 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 Southwest, with whom users have recently found tickets for as low as $149. However, be on the lookout for offers from Frontier and JetBlue, 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
North Las Vegas
Sunrise Manor
Winchester
Primm
Mount Charleston
Kingman
Mesquite
Needles
Boulder City

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Alternative routes for Islip to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$176Average$268FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$394Average$497FlexibilityNo cancel feeOn-time63%

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