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Cheap flights from Islip to Las Vegas from $146

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 to Las Vegas departing on 12/10. 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 to Las Vegas

Cheap round-trip flights

Frontier Logo
4:58 pm - 10:07 amISP-LAS
20h 09m1 stop
Frontier Logo
11:02 pm - 5:42 pmLAS-ISP
15h 40m1 stop
$181Frontier
Find Deal
Mon, Oct 27 - Wed, Oct 29
Frontier Logo
4:58 pm - 11:52 pmISP-LAS
9h 54m1 stop
Frontier Logo
11:02 pm - 10:37 amLAS-ISP
8h 35m1 stop
$183Frontier
Find Deal
Sat, Oct 25 - Thu, Oct 30
Frontier Logo
9:47 pm - 9:35 amISP-LAS
14h 48m1 stop
Frontier Logo
11:02 pm - 10:37 amLAS-ISP
8h 35m1 stop
$191Frontier
Find Deal
Sun, Oct 19 - Thu, Oct 30
Frontier Logo
9:47 pm - 9:35 amISP-LAS
14h 48m1 stop
Frontier Logo
8:00 am - 10:37 amLAS-ISP
23h 37m2 stops
$212Frontier
Find Deal
Sun, Oct 19 - Tue, Nov 4
Frontier Logo
5:05 pm - 9:27 amISP-LAS
19h 22m1 stop
Frontier Logo
10:16 pm - 8:42 pmLAS-ISP
19h 26m1 stop
$214Frontier
Find Deal
Mon, Oct 6 - Mon, Oct 13
Frontier Logo
9:47 pm - 9:35 amISP-LAS
14h 48m1 stop
Frontier Logo
10:58 pm - 5:42 pmLAS-ISP
15h 44m2 stops
$218Frontier
Find Deal
Sun, Oct 19 - Mon, Nov 3
Frontier Logo
9:37 pm - 7:03 pmISP-LAS
24h 26m2 stops
Frontier Logo
11:02 pm - 10:37 amLAS-ISP
8h 35m1 stop
$219Frontier
Find Deal
Thu, Oct 23 - Fri, Oct 31
Frontier Logo
4:58 pm - 12:54 amISP-LAS
10h 56m1 stop
Frontier Logo
11:02 pm - 5:42 pmLAS-ISP
15h 40m1 stop
$224Frontier
Find Deal
Fri, Oct 24 - Wed, Oct 29
JetBlue Logo
1:57 pm - 8:47 pmISP-LAS
9h 50m1 stop
JetBlue Logo
11:59 pm - 1:02 pmLAS-ISP
10h 03m1 stop
$285JetBlue
Find Deal
Mon, Oct 27 - Mon, Oct 27
JetBlue Logo
1:57 pm - 8:47 pmISP-LAS
9h 50m1 stop
JetBlue Logo
10:10 pm - 9:55 amLAS-ISP
8h 45m1 stop
$288JetBlue
Find Deal
Mon, Oct 27 - Fri, Oct 31

Frontier flights from Islip to Las Vegas

Our best Frontier deals on Islip to Las Vegas flight tickets
Frontier
Oct 27
ISP4:58 pmIslip Long Island
20h 09m
1 stop
LAS10:07 amLas Vegas Harry Reid Intl
Oct 29
LAS11:02 pmLas Vegas Harry Reid Intl
15h 40m
1 stop
ISP5:42 pmIslip Long Island
$181
Find similar
Frontier
Oct 25
ISP4:58 pmIslip Long Island
9h 54m
1 stop
LAS11:52 pmLas Vegas Harry Reid Intl
Oct 30
LAS11:02 pmLas Vegas Harry Reid Intl
8h 35m
1 stop
ISP10:37 amIslip Long Island
$183
Find similar
Frontier
Oct 19
ISP9:47 pmIslip Long Island
14h 48m
1 stop
LAS9:35 amLas Vegas Harry Reid Intl
Oct 30
LAS11:02 pmLas Vegas Harry Reid Intl
8h 35m
1 stop
ISP10:37 amIslip Long Island
$191
Find similar

JetBlue flights from Islip to Las Vegas

Our best JetBlue deals on Islip to Las Vegas flight tickets
JetBlue
Oct 27
ISP1:57 pmIslip Long Island
9h 50m
1 stop
LAS8:47 pmLas Vegas Harry Reid Intl
Oct 27
LAS11:59 pmLas Vegas Harry Reid Intl
10h 03m
1 stop
ISP1:02 pmIslip Long Island
$285
Find similar
JetBlue
Oct 27
ISP1:57 pmIslip Long Island
9h 50m
1 stop
LAS8:47 pmLas Vegas Harry Reid Intl
Oct 31
LAS10:10 pmLas Vegas Harry Reid Intl
8h 45m
1 stop
ISP9:55 amIslip Long Island
$288
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Islip to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/27

4:58 pm-10:07 am

1 stop20h 09m

Las Vegas Harry Reid Intl

Wed 10/29

11:02 pm-5:42 pm

1 stop15h 40m

$181

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 10/25

4:58 pm-11:52 pm

1 stop9h 54m

Las Vegas Harry Reid Intl

Thu 10/30

11:02 pm-10:37 am

1 stop8h 35m

$183

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 10/19

9:47 pm-9:35 am

1 stop14h 48m

Las Vegas Harry Reid Intl

Thu 10/30

11:02 pm-10:37 am

1 stop8h 35m

$191

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 10/19

9:47 pm-9:35 am

1 stop14h 48m

Las Vegas Harry Reid Intl

Tue 11/4

8:00 am-10:37 am

2 stops23h 37m

$212

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/6

5:05 pm-9:27 am

1 stop19h 22m

Las Vegas Harry Reid Intl

Mon 10/13

10:16 pm-8:42 pm

1 stop19h 26m

$214

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 10/19

9:47 pm-9:35 am

1 stop14h 48m

Las Vegas Harry Reid Intl

Mon 11/3

10:58 pm-5:42 pm

2 stops15h 44m

$218

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 10/23

9:37 pm-7:03 pm

2 stops24h 26m

Las Vegas Harry Reid Intl

Fri 10/31

11:02 pm-10:37 am

1 stop8h 35m

$219

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 10/24

4:58 pm-12:54 am

1 stop10h 56m

Las Vegas Harry Reid Intl

Wed 10/29

11:02 pm-5:42 pm

1 stop15h 40m

$224

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/27

1:57 pm-8:47 pm

1 stop9h 50m

Las Vegas Harry Reid Intl

Mon 10/27

11:59 pm-1:02 pm

1 stop10h 03m

$285

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/27

1:57 pm-8:47 pm

1 stop9h 50m

Las Vegas Harry Reid Intl

Fri 10/31

10:10 pm-9:55 am

1 stop8h 45m

$288

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 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 typical price of a round-trip flight between Islip and Las Vegas?

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, with most prices found around $394. The month of August is another great option to travel to Las Vegas, with average flight prices from Islip 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 $288. Flights from Islip 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 $318. Flights to Las Vegas are more costly at noon, with an average ticket price of $380. 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 to Las Vegas flights?

You could potentially save up to 28% on your flight if you consider stops on a Islip to Las Vegas flight.

When to book flights from Islip to Las Vegas

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

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

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

Direct flights

None
There are no direct flights from Islip to Las Vegas. There are no popular flight routes from Islip 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. 9h 50m 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 to Las Vegas?

Best airlines flying from Islip to Las Vegas

Compare and see reviews for airlines that fly from Islip to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
SouthwestPriceFrom $384Free CancellationRating
8.0
4,242 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
North Las Vegas
Paradise
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Winchester
Sunrise Manor
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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