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Cheap flights from Islip, New York to Las Vegas from $100

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 4/11. 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
5:02 pm - 11:41 pm
ISP
-
LAS
9h 39m
1 stop
Frontier Logo
11:59 pm - 9:13 am
LAS
-
ISP
30h 14m
1 stop
$200Frontier
Sat, Apr 11 - Sat, Apr 18
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:59 pm - 9:13 am
LAS
-
ISP
30h 14m
1 stop
$221Frontier
Fri, May 1 - Sat, May 2
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:59 pm - 9:13 am
LAS
-
ISP
30h 14m
1 stop
$235Frontier
Sun, Apr 26 - Wed, Apr 29
Frontier Logo
1:22 pm - 11:55 am
ISP
-
LAS
25h 33m
1 stop
Frontier Logo
11:59 pm - 12:47 pm
LAS
-
ISP
9h 48m
1 stop
$238Frontier
Mon, Mar 23 - Thu, Mar 26
Frontier Logo
8:33 am - 10:31 am
ISP
-
LAS
28h 58m
1 stop
Frontier Logo
11:03 pm - 8:40 am
LAS
-
ISP
30h 37m
1 stop
$242Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
11:41 am - 9:26 pm
ISP
-
LAS
36h 45m
2 stops
Frontier Logo
11:03 pm - 2:39 pm
LAS
-
ISP
12h 36m
1 stop
$264Frontier
Sat, Feb 21 - Wed, Feb 25
Multiple Airlines Logo
1:27 pm - 10:49 pm
ISP
-
LAS
12h 22m
1 stop
Multiple Airlines Logo
11:03 pm - 11:06 am
LAS
-
ISP
9h 03m
1 stop
$282Multiple Airlines
Tue, Feb 24 - Fri, Feb 27
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:34 pm - 2:55 pm
LAS
-
ISP
12h 21m
1 stop
$286Frontier
Mon, Apr 20 - Sat, Apr 25
Frontier Logo
8:23 pm - 10:15 am
ISP
-
LAS
16h 52m
1 stop
Frontier Logo
11:00 pm - 7:38 am
LAS
-
ISP
29h 38m
2 stops
$300Frontier
Sat, Feb 21 - Sat, Feb 28
Frontier Logo
8:23 pm - 10:15 am
ISP
-
LAS
16h 52m
1 stop
Frontier Logo
11:03 pm - 8:40 am
LAS
-
ISP
30h 37m
1 stop
$307Frontier
Sat, Feb 21 - Mon, Feb 23

Frontier flights from Islip, New York to Las Vegas

Our best Frontier deals on Islip, New York to Las Vegas flight tickets
Frontier
Apr 11
ISP5:02 pmIslip Long Island
9h 39m
1 stop
LAS11:41 pmLas Vegas Harry Reid Intl
Apr 18
LAS11:59 pmLas Vegas Harry Reid Intl
30h 14m
1 stop
ISP9:13 amIslip Long Island
$200
Frontier
May 1
ISP4:07 pmIslip Long Island
9h 29m
1 stop
LAS10:36 pmLas Vegas Harry Reid Intl
May 2
LAS11:59 pmLas Vegas Harry Reid Intl
30h 14m
1 stop
ISP9:13 amIslip Long Island
$221
Frontier
Apr 26
ISP4:07 pmIslip Long Island
9h 29m
1 stop
LAS10:36 pmLas Vegas Harry Reid Intl
Apr 29
LAS11:59 pmLas Vegas Harry Reid Intl
30h 14m
1 stop
ISP9:13 amIslip Long Island
$235

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets
Southwest
Apr 23
ISP4:30 pmIslip Long Island
9h 50m
1 stop
LAS11:20 pmLas Vegas Harry Reid Intl
Apr 27
LAS11:40 pmLas Vegas Harry Reid Intl
9h 15m
2 stops
ISP11:55 amIslip Long Island
$378
Southwest
Mar 13
ISP5:55 pmIslip Long Island
7h 35m
1 stop
LAS10:30 pmLas Vegas Harry Reid Intl
Mar 17
LAS8:20 amLas Vegas Harry Reid Intl
11h 30m
1 stop
ISP10:50 pmIslip Long Island
$396
Southwest
Apr 23
ISP4:30 pmIslip Long Island
9h 50m
1 stop
LAS11:20 pmLas Vegas Harry Reid Intl
Apr 27
LAS11:40 pmLas Vegas Harry Reid Intl
9h 15m
2 stops
ISP11:55 amIslip Long Island
$415

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 February 9, 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

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 4/11

5:02 pm-11:41 pm

1 stop9h 39m

Las Vegas Harry Reid Intl

Sat 4/18

11:59 pm-9:13 am

1 stop30h 14m

$200

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 5/1

4:07 pm-10:36 pm

1 stop9h 29m

Las Vegas Harry Reid Intl

Sat 5/2

11:59 pm-9:13 am

1 stop30h 14m

$221

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 4/26

4:07 pm-10:36 pm

1 stop9h 29m

Las Vegas Harry Reid Intl

Wed 4/29

11:59 pm-9:13 am

1 stop30h 14m

$235

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 3/23

1:22 pm-11:55 am

1 stop25h 33m

Las Vegas Harry Reid Intl

Thu 3/26

11:59 pm-12:47 pm

1 stop9h 48m

$238

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 2/27

8:33 am-10:31 am

1 stop28h 58m

Las Vegas Harry Reid Intl

Mon 3/2

11:03 pm-8:40 am

1 stop30h 37m

$242

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 2/21

11:41 am-9:26 pm

2 stops36h 45m

Las Vegas Harry Reid Intl

Wed 2/25

11:03 pm-2:39 pm

1 stop12h 36m

$264

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 2/24

1:27 pm-10:49 pm

1 stop12h 22m

Las Vegas Harry Reid Intl

Fri 2/27

11:03 pm-11:06 am

1 stop9h 03m

$282

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 4/20

4:07 pm-10:36 pm

1 stop9h 29m

Las Vegas Harry Reid Intl

Sat 4/25

11:34 pm-2:55 pm

1 stop12h 21m

$286

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 2/21

8:23 pm-10:15 am

1 stop16h 52m

Las Vegas Harry Reid Intl

Sat 2/28

11:00 pm-7:38 am

2 stops29h 38m

$300

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 2/21

8:23 pm-10:15 am

1 stop16h 52m

Las Vegas Harry Reid Intl

Mon 2/23

11:03 pm-8:40 am

1 stop30h 37m

$307

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 typical price of a round-trip flight between Islip, New York 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, 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 $289. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $376. 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 $326. Flights to Las Vegas are more costly at noon, with an average ticket price of $366. 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 2% 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

Fastest flight time

8h 40m

Direct flights

None
The fastest flight from Islip, New York to Las Vegas takes 8h 40m
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 40m 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 $169Free CancellationRating
7.2
2,893 reviews
Search JetBlue flights
SouthwestPriceFrom $380Free CancellationRating
8.0
4,280 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
Paradise
Mesquite
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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