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Cheap flights from Islip, New York to Las Vegas from $80

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.
1 adult
1 adult, Economy, 0 bags

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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
9:38 am - 11:15 am
ISP
-
LAS
28h 37m
1 stop
Frontier Logo
11:54 pm - 9:33 am
LAS
-
ISP
30h 39m
1 stop
$160Frontier
Tue, Apr 14 - Tue, Apr 21
Frontier Logo
7:34 pm - 11:41 pm
ISP
-
LAS
31h 07m
1 stop
Frontier Logo
11:54 pm - 9:13 am
LAS
-
ISP
30h 19m
1 stop
$180Frontier
Fri, Apr 10 - Sat, Apr 18
Frontier Logo
8:31 pm - 8:26 am
ISP
-
LAS
14h 55m
1 stop
Frontier Logo
10:12 pm - 10:05 am
LAS
-
ISP
8h 53m
1 stop
$185Frontier
Sun, May 3 - Fri, May 8
Frontier Logo
11:00 am - 8:47 pm
ISP
-
LAS
12h 47m
1 stop
Frontier Logo
10:12 pm - 10:05 am
LAS
-
ISP
8h 53m
1 stop
$205Frontier
Mon, May 25 - Fri, May 29
Frontier Logo
4:07 pm - 10:41 pm
ISP
-
LAS
9h 34m
1 stop
Frontier Logo
11:54 pm - 11:00 am
LAS
-
ISP
8h 06m
1 stop
$210Frontier
Fri, May 1 - Mon, May 4
Frontier Logo
7:30 pm - 10:36 pm
ISP
-
LAS
30h 06m
1 stop
Frontier Logo
11:54 pm - 9:33 am
LAS
-
ISP
30h 39m
1 stop
$215Frontier
Sat, Apr 4 - Tue, Apr 14
Frontier Logo
5:45 am - 10:25 am
ISP
-
LAS
31h 40m
1 stop
Frontier Logo
11:54 pm - 9:13 am
LAS
-
ISP
30h 19m
1 stop
$225Frontier
Sun, Apr 12 - Fri, Apr 17
Frontier Logo
11:00 am - 11:14 am
ISP
-
LAS
27h 14m
1 stop
Frontier Logo
11:00 pm - 5:58 pm
LAS
-
ISP
15h 58m
1 stop
$230Frontier
Wed, May 27 - Sun, May 31
Frontier Logo
11:00 am - 8:47 pm
ISP
-
LAS
12h 47m
1 stop
Frontier Logo
10:12 pm - 10:05 am
LAS
-
ISP
8h 53m
1 stop
$235Frontier
Fri, May 29 - Sun, May 31
Frontier Logo
11:00 am - 8:47 pm
ISP
-
LAS
12h 47m
1 stop
Frontier Logo
10:12 pm - 5:17 pm
LAS
-
ISP
16h 05m
1 stop
$250Frontier
Fri, May 29 - Mon, Jun 1

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets
Southwest
Apr 14
ISP4:10 pmIslip Long Island
7h 35m
1 stop
LAS8:45 pmLas Vegas Harry Reid Intl
Apr 18
LAS6:05 amLas Vegas Harry Reid Intl
6h 55m
1 stop
ISP4:00 pmIslip Long Island
$345
Southwest
Apr 14
ISP6:30 amIslip Long Island
11h 00m
2 stops
LAS2:30 pmLas Vegas Harry Reid Intl
Apr 18
LAS6:05 amLas Vegas Harry Reid Intl
6h 55m
1 stop
ISP4:00 pmIslip Long Island
$350
Southwest
Apr 14
ISP9:00 amIslip Long Island
9h 35m
2 stops
LAS3:35 pmLas Vegas Harry Reid Intl
Apr 18
LAS11:10 amLas Vegas Harry Reid Intl
9h 10m
2 stops
ISP11:20 pmIslip Long Island
$356

Frontier flights from Islip, New York to Las Vegas

Our best Frontier deals on Islip, New York to Las Vegas flight tickets
Frontier
Apr 14
ISP9:38 amIslip Long Island
28h 37m
1 stop
LAS11:15 amLas Vegas Harry Reid Intl
Apr 21
LAS11:54 pmLas Vegas Harry Reid Intl
30h 39m
1 stop
ISP9:33 amIslip Long Island
$160
Frontier
Apr 10
ISP7:34 pmIslip Long Island
31h 07m
1 stop
LAS11:41 pmLas Vegas Harry Reid Intl
Apr 18
LAS11:54 pmLas Vegas Harry Reid Intl
30h 19m
1 stop
ISP9:13 amIslip Long Island
$180
Frontier
May 3
ISP8:31 pmIslip Long Island
14h 55m
1 stop
LAS8:26 amLas Vegas Harry Reid Intl
May 8
LAS10:12 pmLas Vegas Harry Reid Intl
8h 53m
1 stop
ISP10:05 amIslip Long Island
$185

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 March 25, 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

Tue 4/14

9:38 am-11:15 am

1 stop28h 37m

Las Vegas Harry Reid Intl

Tue 4/21

11:54 pm-9:33 am

1 stop30h 39m

$160

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 4/10

7:34 pm-11:41 pm

1 stop31h 07m

Las Vegas Harry Reid Intl

Sat 4/18

11:54 pm-9:13 am

1 stop30h 19m

$180

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 5/3

8:31 pm-8:26 am

1 stop14h 55m

Las Vegas Harry Reid Intl

Fri 5/8

10:12 pm-10:05 am

1 stop8h 53m

$185

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 5/25

11:00 am-8:47 pm

1 stop12h 47m

Las Vegas Harry Reid Intl

Fri 5/29

10:12 pm-10:05 am

1 stop8h 53m

$205
Quickest round-trip

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 5/1

4:07 pm-10:41 pm

1 stop9h 34m

Las Vegas Harry Reid Intl

Mon 5/4

11:54 pm-11:00 am

1 stop8h 06m

$210

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 4/4

7:30 pm-10:36 pm

1 stop30h 06m

Las Vegas Harry Reid Intl

Tue 4/14

11:54 pm-9:33 am

1 stop30h 39m

$215

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 4/12

5:45 am-10:25 am

1 stop31h 40m

Las Vegas Harry Reid Intl

Fri 4/17

11:54 pm-9:13 am

1 stop30h 19m

$225

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 5/27

11:00 am-11:14 am

1 stop27h 14m

Las Vegas Harry Reid Intl

Sun 5/31

11:00 pm-5:58 pm

1 stop15h 58m

$230

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 5/29

11:00 am-8:47 pm

1 stop12h 47m

Las Vegas Harry Reid Intl

Sun 5/31

10:12 pm-10:05 am

1 stop8h 53m

$235

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 5/29

11:00 am-8:47 pm

1 stop12h 47m

Las Vegas Harry Reid Intl

Mon 6/1

10:12 pm-5:17 pm

1 stop16h 05m

$250

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 March is another great option to travel to Las Vegas, with average flight prices from Islip, New York averaging around $395.

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 $300. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $384. 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 $336. Flights to Las Vegas are more costly in the evening, with an average ticket price of $347. Departure times in the evening 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 4% 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 05m

Direct flights

None
The fastest flight from Islip, New York to Las Vegas takes 8h 05m
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 05m 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
2,903 reviews
Search JetBlue flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,333 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
Furnace Creek
Primm
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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