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Cheap flights from Islip, New York to Las Vegas from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Las Vegas departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Islip, New York to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
$240Frontier
Mon, Aug 31 - Wed, Sep 2
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
$274Frontier
Fri, Aug 28 - Mon, Aug 31
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
Frontier Logo
10:12 pm - 9:33 am
LAS
-
ISP
8h 21m
1 stop
$284Frontier
Tue, Sep 8 - Sat, Sep 12
Frontier Logo
7:46 pm - 12:19 am
ISP
-
LAS
31h 33m
1 stop
Frontier Logo
9:41 pm - 6:14 pm
LAS
-
ISP
17h 33m
1 stop
$304Frontier
Fri, Aug 14 - Thu, Aug 20
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
$311Frontier
Sun, Aug 23 - Thu, Aug 27
Frontier Logo
7:09 pm - 11:48 am
ISP
-
LAS
19h 39m
1 stop
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
$318Frontier
Fri, Aug 21 - Fri, Aug 28
JetBlue Logo
4:58 pm - 10:49 pm
ISP
-
LAS
8h 51m
1 stop
JetBlue Logo
7:00 am - 7:33 pm
LAS
-
ISP
9h 33m
1 stop
$327JetBlue
Thu, Aug 13 - Tue, Aug 18
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
Frontier Logo
10:12 pm - 9:33 am
LAS
-
ISP
8h 21m
1 stop
$328Frontier
Tue, Sep 8 - Sat, Sep 12
Multiple Airlines Logo
8:43 pm - 10:49 pm
ISP
-
LAS
29h 06m
2 stops
Multiple Airlines Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
$335Multiple Airlines
Fri, Aug 21 - Tue, Aug 25
Multiple Airlines Logo
7:09 pm - 11:48 am
ISP
-
LAS
19h 39m
1 stop
Multiple Airlines Logo
11:25 pm - 1:33 pm
LAS
-
ISP
11h 08m
2 stops
$338Multiple Airlines
Fri, Aug 21 - Fri, Aug 28

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Frontier flights from Islip, New York to Las Vegas

Our best Frontier deals on Islip, New York to Las Vegas flight tickets
Frontier
Aug 31
ISP10:57 amIslip Long Island
13h 47m
1 stop
LAS9:44 pmLas Vegas Harry Reid Intl
Sep 2
LAS9:41 pmLas Vegas Harry Reid Intl
9h 12m
1 stop
ISP9:53 amIslip Long Island
$240
Frontier
Aug 28
ISP10:57 amIslip Long Island
13h 47m
1 stop
LAS9:44 pmLas Vegas Harry Reid Intl
Aug 31
LAS9:41 pmLas Vegas Harry Reid Intl
9h 12m
1 stop
ISP9:53 amIslip Long Island
$274
Frontier
Sep 8
ISP10:57 amIslip Long Island
13h 47m
1 stop
LAS9:44 pmLas Vegas Harry Reid Intl
Sep 12
LAS10:12 pmLas Vegas Harry Reid Intl
8h 21m
1 stop
ISP9:33 amIslip Long Island
$284

Breeze Airways flights from Islip, New York to Las Vegas

Our best Breeze Airways deals on Islip, New York to Las Vegas flight tickets
Breeze Airways
Jul 26
ISP7:49 pmIslip Long Island
17h 53m
1 stop
LAS10:42 amLas Vegas Harry Reid Intl
Aug 14
LAS11:25 pmLas Vegas Harry Reid Intl
11h 08m
2 stops
ISP1:33 pmIslip Long Island
$673
Breeze Airways
Jul 30
ISP7:49 pmIslip Long Island
17h 53m
1 stop
LAS10:42 amLas Vegas Harry Reid Intl
Aug 14
LAS11:25 pmLas Vegas Harry Reid Intl
11h 08m
2 stops
ISP1:33 pmIslip Long Island
$683
Breeze Airways
Jul 27
ISP2:28 pmIslip Long Island
10h 27m
2 stops
LAS9:55 pmLas Vegas Harry Reid Intl
Jul 30
LAS11:25 pmLas Vegas Harry Reid Intl
11h 03m
2 stops
ISP1:28 pmIslip Long Island
$688

momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated July 17, 2026.
Use the filters below to find and compare flights from Islip, New York to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 8/31

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Wed 9/2

9:41 pm-9:53 am

1 stop9h 12m

$240

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 8/28

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Mon 8/31

9:41 pm-9:53 am

1 stop9h 12m

$274

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 9/8

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Sat 9/12

10:12 pm-9:33 am

1 stop8h 21m

$284

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 8/14

7:46 pm-12:19 am

1 stop31h 33m

Las Vegas Harry Reid Intl

Thu 8/20

9:41 pm-6:14 pm

1 stop17h 33m

$304

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 8/23

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Thu 8/27

9:41 pm-9:53 am

1 stop9h 12m

$311

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 8/21

7:09 pm-11:48 am

1 stop19h 39m

Las Vegas Harry Reid Intl

Fri 8/28

9:41 pm-9:53 am

1 stop9h 12m

$318
Quickest round-trip

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 8/13

4:58 pm-10:49 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Tue 8/18

7:00 am-7:33 pm

1 stop9h 33m

$327

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 9/8

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Sat 9/12

10:12 pm-9:33 am

1 stop8h 21m

$328

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 8/21

8:43 pm-10:49 pm

2 stops29h 06m

Las Vegas Harry Reid Intl

Tue 8/25

9:41 pm-9:53 am

1 stop9h 12m

$335

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 8/21

7:09 pm-11:48 am

1 stop19h 39m

Las Vegas Harry Reid Intl

Fri 8/28

11:25 pm-1:33 pm

2 stops11h 08m

$338

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

How to get the cheapest flight ticket from Islip, New York to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Las Vegas?

The month of January is, on average, the cheapest month to fly to Las Vegas from Islip, New York, with most prices found around $362. The month of March is another great option to travel to Las Vegas, with average flight prices from Islip, New York averaging around $396.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Saturday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $332. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $430. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as $366. Flights to Las Vegas are more costly at noon, with an average ticket price of $407. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Islip, New York to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Las Vegas (ISP to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Las Vegas

Fastest flight time

7h 20m

Direct flights

None
The fastest flight from Islip, New York to Las Vegas takes 7h 20m
There are no direct flights from Islip, New York to Las Vegas. There are no popular flight routes from Islip, New York to Las Vegas.
Search flight deals

Frequently asked questions about flying from Islip, New York to Las Vegas

  • How far is Islip Long Island to Las Vegas Harry Reid Intl by plane?

    A flight from Islip Long Island to Las Vegas Harry Reid Intl will travel around 2267.0 mi. 7h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Islip Long Island Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Islip Long Island Airport to Las Vegas Harry Reid Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Islip Long Island Airport to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Islip Long Island Airport to Las Vegas Harry Reid Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The necessary travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Islip, New York to Las Vegas?

Best airlines flying from Islip, New York to Las Vegas

Compare and see reviews for airlines that fly from Islip, New York to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $170Free CancellationRating
7.1
3,012 reviews
Search JetBlue flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,241 reviews
Search Southwest flights

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Paradise
Henderson
North Las Vegas
Kingman
Mesquite
Sunrise Manor
Pahrump
Furnace Creek
Boulder City
Primm
Winchester
Needles

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Las Vegas?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Islip to Las Vegas. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Islip to Las Vegas with flexible booking policies on momondo?

Yes. All flights to Las Vegas from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Islip to Las Vegas?

Once you have performed a search for Islip to Las Vegas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Las Vegas right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Islip to Las Vegas flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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