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Cheap flights from Islip, New York to Las Vegas from $97

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 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
6:00 am - 9:43 amISP-LAS
30h 43m1 stop
Frontier Logo
10:20 pm - 11:25 amLAS-ISP
10h 05m1 stop
$182Frontier
Find Deal
Wed, Dec 10 - Wed, Dec 17
Frontier Logo
10:19 am - 9:43 amISP-LAS
26h 24m1 stop
Frontier Logo
10:20 pm - 12:38 amLAS-ISP
23h 18m1 stop
$203Frontier
Find Deal
Sat, Dec 13 - Tue, Dec 16
Frontier Logo
10:19 am - 10:23 amISP-LAS
27h 04m1 stop
Frontier Logo
10:20 pm - 9:13 amLAS-ISP
7h 53m1 stop
$207Frontier
Find Deal
Mon, Dec 8 - Fri, Dec 12
Frontier Logo
6:00 am - 9:43 amISP-LAS
30h 43m1 stop
Frontier Logo
10:15 pm - 7:40 pmLAS-ISP
18h 25m1 stop
$227Frontier
Find Deal
Wed, Dec 17 - Sat, Dec 20
Frontier Logo
10:19 am - 9:43 amISP-LAS
26h 24m1 stop
Frontier Logo
10:20 pm - 7:34 pmLAS-ISP
18h 14m1 stop
$228Frontier
Find Deal
Thu, Dec 11 - Mon, Dec 15
Frontier Logo
11:15 am - 9:43 amISP-LAS
25h 28m1 stop
Frontier Logo
10:20 pm - 7:34 pmLAS-ISP
18h 14m1 stop
$232Frontier
Find Deal
Sun, Dec 7 - Thu, Dec 11
Frontier Logo
10:19 am - 9:43 amISP-LAS
26h 24m1 stop
Frontier Logo
10:20 pm - 10:44 pmLAS-ISP
21h 24m1 stop
$233Frontier
Find Deal
Thu, Dec 4 - Tue, Dec 9
Frontier Logo
10:19 am - 9:43 amISP-LAS
26h 24m1 stop
Frontier Logo
10:20 pm - 7:34 pmLAS-ISP
18h 14m1 stop
$238Frontier
Find Deal
Thu, Dec 11 - Mon, Dec 15
Frontier Logo
7:43 pm - 10:14 pmISP-LAS
29h 31m2 stops
Frontier Logo
10:45 pm - 10:40 amLAS-ISP
8h 55m1 stop
$241Frontier
Find Deal
Mon, Feb 9 - Fri, Feb 13
Frontier Logo
8:40 pm - 9:43 amISP-LAS
16h 03m1 stop
Frontier Logo
10:33 pm - 7:03 pmLAS-ISP
17h 30m1 stop
$253Frontier
Find Deal
Thu, Jan 8 - Wed, Jan 14

Frontier flights from Islip, New York to Las Vegas

Our best Frontier deals on Islip, New York to Las Vegas flight tickets
Frontier
Dec 8
ISP10:19 amIslip Long Island
27h 04m
1 stop
LAS10:23 amLas Vegas Harry Reid Intl
Dec 17
LAS10:20 pmLas Vegas Harry Reid Intl
10h 05m
1 stop
ISP11:25 amIslip Long Island
$182
Find similar
Frontier
Dec 13
ISP10:19 amIslip Long Island
26h 24m
1 stop
LAS9:43 amLas Vegas Harry Reid Intl
Dec 16
LAS10:20 pmLas Vegas Harry Reid Intl
23h 18m
1 stop
ISP12:38 amIslip Long Island
$203
Find similar
Frontier
Dec 8
ISP10:19 amIslip Long Island
27h 04m
1 stop
LAS10:23 amLas Vegas Harry Reid Intl
Dec 12
LAS10:20 pmLas Vegas Harry Reid Intl
7h 53m
1 stop
ISP9:13 amIslip Long Island
$207
Find similar

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets
Southwest
Feb 17
ISP4:05 pmIslip Long Island
9h 15m
1 stop
LAS10:20 pmLas Vegas Harry Reid Intl
Feb 19
LAS6:35 amLas Vegas Harry Reid Intl
6h 50m
1 stop
ISP4:25 pmIslip Long Island
$380
Find similar
Southwest
Feb 17
ISP11:50 amIslip Long Island
10h 55m
2 stops
LAS7:45 pmLas Vegas Harry Reid Intl
Feb 19
LAS6:35 amLas Vegas Harry Reid Intl
6h 50m
1 stop
ISP4:25 pmIslip Long Island
$385
Find similar
Southwest
Jan 25
ISP4:05 pmIslip Long Island
9h 15m
1 stop
LAS10:20 pmLas Vegas Harry Reid Intl
Jan 27
LAS5:35 amLas Vegas Harry Reid Intl
7h 40m
1 stop
ISP4:15 pmIslip Long Island
$407
Find similar

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 November 24, 2025.
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

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 12/10

6:00 am-9:43 am

1 stop30h 43m

Las Vegas Harry Reid Intl

Wed 12/17

10:20 pm-11:25 am

1 stop10h 05m

$182

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 12/13

10:19 am-9:43 am

1 stop26h 24m

Las Vegas Harry Reid Intl

Tue 12/16

10:20 pm-12:38 am

1 stop23h 18m

$203

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 12/8

10:19 am-10:23 am

1 stop27h 04m

Las Vegas Harry Reid Intl

Fri 12/12

10:20 pm-9:13 am

1 stop7h 53m

$207

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 12/17

6:00 am-9:43 am

1 stop30h 43m

Las Vegas Harry Reid Intl

Sat 12/20

10:15 pm-7:40 pm

1 stop18h 25m

$227

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 12/11

10:19 am-9:43 am

1 stop26h 24m

Las Vegas Harry Reid Intl

Mon 12/15

10:20 pm-7:34 pm

1 stop18h 14m

$228

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 12/7

11:15 am-9:43 am

1 stop25h 28m

Las Vegas Harry Reid Intl

Thu 12/11

10:20 pm-7:34 pm

1 stop18h 14m

$232

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 12/4

10:19 am-9:43 am

1 stop26h 24m

Las Vegas Harry Reid Intl

Tue 12/9

10:20 pm-10:44 pm

1 stop21h 24m

$233

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 12/11

10:19 am-9:43 am

1 stop26h 24m

Las Vegas Harry Reid Intl

Mon 12/15

10:20 pm-7:34 pm

1 stop18h 14m

$238

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 2/9

7:43 pm-10:14 pm

2 stops29h 31m

Las Vegas Harry Reid Intl

Fri 2/13

10:45 pm-10:40 am

1 stop8h 55m

$241

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 1/8

8:40 pm-9:43 am

1 stop16h 03m

Las Vegas Harry Reid Intl

Wed 1/14

10:33 pm-7:03 pm

1 stop17h 30m

$253

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 August is another great option to travel to Las Vegas, with average flight prices from Islip, New York averaging around $398.

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

Our data shows that Tuesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $290. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $366. 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 morning when flights can be purchased for as low as $317. Flights to Las Vegas are more costly at noon, with an average ticket price of $371. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Islip, New York to Las Vegas flights?

You could potentially save up to 34% on your flight if you consider stops on a Islip, New York to Las Vegas flight.

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

Direct flights

None
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

  • 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. 8h 10m 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
FrontierPriceFrom $150Free CancellationRating
5.8
3,099 reviews
Search Frontier flights
JetBluePriceFrom $169Free CancellationRating
7.2
2,903 reviews
Search JetBlue flights
SouthwestPriceFrom $380Free CancellationRating
8.0
4,252 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
Henderson
Mesquite
Paradise
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
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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