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ISP - LAS

$108 Find cheap flights from Islip, New York to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Las Vegas departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Las Vegas

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Las Vegas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Las Vegas, as well as popular online travel agencies
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

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Cheap flight deals from Islip to Las Vegas (ISP-LAS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:00 am - 10:40 amISP-LAS
27h 40m1 stop
10:29 pm - 8:26 amLAS-ISP
30h 57m1 stop
$223Frontier
Find Deal
Thu, Aug 22 - Mon, Aug 26
10:00 am - 10:40 amISP-LAS
27h 40m1 stop
10:29 pm - 8:26 amLAS-ISP
30h 57m1 stop
$226Frontier
Find Deal
Thu, Aug 22 - Mon, Aug 26
10:23 pm - 9:26 amISP-LAS
14h 03m1 stop
10:29 pm - 1:21 pmLAS-ISP
11h 52m1 stop
$248Frontier
Find Deal
Sun, Jun 9 - Mon, Jun 10
10:32 pm - 9:50 amISP-LAS
14h 18m1 stop
10:48 pm - 2:05 pmLAS-ISP
12h 17m1 stop
$266Frontier
Find Deal
Fri, May 10 - Sat, May 18
4:49 pm - 10:39 amISP-LAS
20h 50m1 stop
10:29 pm - 8:13 amLAS-ISP
30h 44m1 stop
$283Frontier
Find Deal
Sat, May 18 - Tue, May 21
9:42 pm - 10:39 amISP-LAS
15h 57m1 stop
10:29 pm - 8:13 amLAS-ISP
30h 44m1 stop
$285Frontier
Find Deal
Tue, May 21 - Fri, May 24
9:42 pm - 10:39 amISP-LAS
15h 57m1 stop
10:29 pm - 1:17 pmLAS-ISP
11h 48m1 stop
$288Frontier
Find Deal
Tue, May 28 - Mon, Jun 3
10:32 pm - 9:50 amISP-LAS
14h 18m1 stop
10:24 pm - 10:36 amLAS-ISP
9h 12m1 stop
$306Frontier
Find Deal
Fri, May 10 - Sun, May 12
5:25 pm - 10:40 amISP-LAS
20h 15m1 stop
10:29 pm - 8:45 pmLAS-ISP
19h 16m1 stop
$315Frontier
Find Deal
Sun, Oct 6 - Fri, Oct 11
5:47 pm - 8:28 amISP-LAS
17h 41m1 stop
5:05 am - 12:25 pmLAS-ISP
28h 20m3 stops
$415
Find Deal
Fri, May 24 - Wed, May 29

Flights from Islip to Las Vegas - Travel Insights & Trends

Get data-powered insights and trends into flights from Islip to Las Vegas to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Islip to Las Vegas?

The average price of all flights from Islip, New York to Las Vegas clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Las Vegas on a Saturday and more expensive on a Friday. On your return trip to Islip, you should consider flying back on a Monday, and avoid Thursdays for better deals.

What is the cheapest month to fly from Islip, New York to Las Vegas?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Islip, New York to Las Vegas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Islip, New York to Las Vegas is January, where tickets cost $298 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is $433 and $413 respectively.

How far in advance should I book a flight from Islip, New York to Las Vegas?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Islip, New York to Las Vegas, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Islip, New York to Las Vegas, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 days before departure.

Good to know

Low season

September

High season

October

Cheapest flight

$108
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Islip to Las Vegas

When to book flights from Islip to Las Vegas

Are your dates flexible? Find out the best times to travel from Islip to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to Las Vegas

  • What is the cheapest flight from Islip, New York to Las Vegas?

    In the last 3 days, the lowest price for a flight from Islip, New York to Las Vegas was $108 for a one-way ticket and $223 for a round-trip.

  • Do I need a passport to fly between Islip and Las Vegas?

    No

  • Which airports will I be using when flying from Islip to Las Vegas?

    When flying out of Islip you will be using Islip Long Island. You will be landing at Las Vegas, also known as Las Vegas Harry Reid Intl.

  • Which aircraft models fly most regularly from Islip to Las Vegas?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Islip with another airline. Booking your flights between Islip and LAS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Islip to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying from Islip to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.3
FrontierOverall score based on 4135 reviews
5.8comfort
6.6boarding
7.1crew
4.9entertainment
5.2food
Airline reviews

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

2.0 Mediocrejohn, Apr 2024IAH - MCO
Read more about Frontier reviews

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

Book cheap flights from Islip to Las Vegas

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Islip to Las Vegas found on KAYAK in the last 72 hours.
5/11Sat
2 stopsFrontier
21h 14mISP-LAS
$108
5/10Fri
1 stopFrontier
14h 18mISP-LAS
$123
5/11Sat
1 stopFrontier
18h 04mISP-LAS
$127
5/4Sat
1 stopFrontier
18h 04mISP-LAS
$128
5/4Sat
2 stopsFrontier
21h 14mISP-LAS
$133
5/9Thu
1 stopFrontier
15h 00mISP-LAS
$155
5/3Fri
1 stopFrontier
14h 18mISP-LAS
$165
5/14Tue
1 stopFrontier
15h 00mISP-LAS
$185
5/1Wed
1 stopFrontier
18h 04mISP-LAS
$220
5/9Thu
3 stops
28h 01mISP-LAS
$309

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Last minute flights from Islip to Las Vegas

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Islip to Las Vegas that are departing in the next 10 days.
4/27Sat
multi-stopFrontier
18h 04mISP-LAS
5/4Sat
multi-stopFrontier
12h 11mLAS-ISP
$283
4/27Sat
multi-stopFrontier
21h 14mISP-LAS
5/4Sat
multi-stopFrontier
12h 11mLAS-ISP
$293
4/26Fri
multi-stopFrontier
14h 18mISP-LAS
4/29Mon
multi-stopFrontier
11h 24mLAS-ISP
$778
4/28Sun
multi-stop
29h 27mISP-LAS
5/5Sun
multi-stop
22h 32mLAS-ISP
$1,011
4/28Sun
multi-stop
29h 27mISP-LAS
5/5Sun
multi-stop
12h 45mLAS-ISP
$1,023
4/25Thu
multi-stopFrontier
15h 00mISP-LAS
4/28Sun
multi-stopFrontier
8h 09mLAS-ISP
$1,138
4/28Sun
multi-stopFrontier
15h 00mISP-LAS
5/5Sun
multi-stopFrontier
9h 12mLAS-ISP
$1,147

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Islip - Las Vegas Flights

Departure:

Islip (ISP)United States

Destination:

Las Vegas (LAS)United States

Return flight deals:

Las Vegas - Islip

Cabin classes:

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