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ISP - LAS

$139 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
Mon 6/3
Mon 6/10

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 43,369,418 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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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
9:42 pm - 10:17 amISP-LAS
15h 35m1 stop
10:18 pm - 7:40 amLAS-ISP
30h 22m1 stop
$239Frontier
Find Deal
Tue, Jun 4 - Thu, Jun 6
10:22 pm - 10:40 amISP-LAS
15h 18m1 stop
11:40 pm - 2:08 pmLAS-ISP
11h 28m1 stop
$284Frontier
Find Deal
Thu, Jul 18 - Mon, Jul 22
4:49 pm - 12:53 pmISP-LAS
23h 04m2 stops
10:18 pm - 7:40 amLAS-ISP
30h 22m1 stop
$311Frontier
Find Deal
Tue, Jun 4 - Thu, Jun 6
9:45 pm - 10:40 amISP-LAS
15h 55m1 stop
10:29 pm - 8:26 amLAS-ISP
30h 57m1 stop
$320Frontier
Find Deal
Tue, Jul 16 - Fri, Jul 19
9:45 pm - 10:40 amISP-LAS
15h 55m1 stop
11:40 pm - 2:08 pmLAS-ISP
11h 28m1 stop
$338Frontier
Find Deal
Tue, Jul 9 - Mon, Jul 15
10:23 pm - 9:24 amISP-LAS
14h 01m1 stop
11:52 pm - 1:54 pmLAS-ISP
11h 02m1 stop
$359Frontier
Find Deal
Sun, Jun 23 - Mon, Jun 24
1:05 pm - 4:17 pmISP-LAS
30h 12m3 stops
9:35 pm - 5:07 pmLAS-ISP
16h 32m1 stop
$393
Find Deal
Sun, Jun 2 - Sun, Jun 9
4:49 pm - 10:24 amISP-LAS
20h 35m1 stop
10:29 pm - 7:40 amLAS-ISP
30h 11m1 stop
$435Frontier
Find Deal
Fri, May 31 - Mon, Jun 3
2:05 pm - 10:51 pmISP-LAS
11h 46m2 stops
9:35 pm - 5:07 pmLAS-ISP
16h 32m1 stop
$462
Find Deal
Sun, Jun 2 - Sun, Jun 9
1:05 pm - 4:17 pmISP-LAS
30h 12m3 stops
4:01 pm - 5:07 pmLAS-ISP
22h 06m3 stops
$464
Find Deal
Sun, Jun 2 - Sun, Jun 9

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

$139
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 $139 for a one-way ticket and $239 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.
6.2
FrontierOverall score based on 4098 reviews
4.9Entertainment
5.2Food
6.6Boarding
5.8Comfort
7.1Crew
Airline reviews

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

4.0 OkayClement Junez Beatz, May 2024LGA - ATL
Read more about Frontier reviews

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

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

They changed my flight and did not want to accommodate me or try to help me in any way. They do not care about their customers.

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

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
1 stopFrontier
18h 04mISP-LAS
$139
5/10Fri
1 stopFrontier
14h 18mISP-LAS
$145
5/16Thu
1 stopFrontier
15h 00mISP-LAS
$185
5/11Sat
2 stopsFrontier
21h 14mISP-LAS
$194
5/15Wed
1 stopFrontier
19h 34mISP-LAS
$479

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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.
5/6Mon
multi-stopFrontier
17h 22mISP-LAS
5/13Mon
multi-stopFrontier
11h 24mLAS-ISP
$694

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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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