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Cheap flights from Islip, New York to Las Vegas from $136

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 9/29. 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
7:09 pm - 9:21 am
ISP
-
LAS
17h 12m
1 stop
Frontier Logo
10:12 pm - 9:33 am
LAS
-
ISP
8h 21m
1 stop
$240Frontier
Sat, Sep 5 - Sat, Sep 12
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
$250Frontier
Sat, Aug 29 - Tue, Sep 1
Frontier Logo
7:09 pm - 9:44 pm
ISP
-
LAS
29h 35m
1 stop
Frontier Logo
9:41 pm - 6:14 pm
LAS
-
ISP
17h 33m
1 stop
$250Frontier
Thu, Aug 27 - Thu, Sep 3
JetBlue Logo
4:58 pm - 10:49 pm
ISP
-
LAS
8h 51m
1 stop
JetBlue Logo
11:30 am - 11:22 pm
LAS
-
ISP
8h 52m
1 stop
$337JetBlue
Tue, Sep 8 - Wed, Sep 9
Southwest Logo
12:50 pm - 7:45 pm
ISP
-
LAS
9h 55m
2 stops
Southwest Logo
10:50 pm - 10:20 am
LAS
-
ISP
8h 30m
1 stop
$357Southwest
Tue, Oct 6 - Wed, Oct 14
Southwest Logo
4:20 pm - 11:05 pm
ISP
-
LAS
9h 45m
2 stops
Southwest Logo
6:50 am - 7:55 pm
LAS
-
ISP
10h 05m
2 stops
$362Southwest
Tue, Oct 6 - Wed, Oct 14
Southwest Logo
12:35 pm - 5:05 pm
ISP
-
LAS
7h 30m
1 stop
Southwest Logo
12:20 am - 12:35 pm
LAS
-
ISP
9h 15m
2 stops
$374Southwest
Thu, Aug 27 - Wed, Sep 2
JetBlue Logo
5:50 am - 1:05 pm
ISP
-
LAS
10h 15m
1 stop
JetBlue Logo
9:55 pm - 8:52 am
LAS
-
ISP
7h 57m
1 stop
$390JetBlue
Tue, Jan 19 - Sat, Jan 23
JetBlue Logo
5:50 am - 1:05 pm
ISP
-
LAS
10h 15m
1 stop
JetBlue Logo
9:55 pm - 8:52 am
LAS
-
ISP
7h 57m
1 stop
$390JetBlue
Tue, Jan 19 - Fri, Jan 22

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JetBlue flights from Islip, New York to Las Vegas

Our best JetBlue deals on Islip, New York to Las Vegas flight tickets
JetBlue
Sep 8
ISP4:58 pmIslip Long Island
8h 51m
1 stop
LAS10:49 pmLas Vegas Harry Reid Intl
Sep 9
LAS11:30 amLas Vegas Harry Reid Intl
8h 52m
1 stop
ISP11:22 pmIslip Long Island
$337
JetBlue
Aug 11
ISP4:58 pmIslip Long Island
8h 51m
1 stop
LAS10:49 pmLas Vegas Harry Reid Intl
Aug 18
LAS7:00 amLas Vegas Harry Reid Intl
9h 33m
1 stop
ISP7:33 pmIslip Long Island
$549
JetBlue
Aug 11
ISP4:58 pmIslip Long Island
8h 51m
1 stop
LAS10:49 pmLas Vegas Harry Reid Intl
Aug 19
LAS7:00 amLas Vegas Harry Reid Intl
11h 44m
1 stop
ISP9:44 pmIslip Long Island
$602

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets
Southwest
Oct 6
ISP12:50 pmIslip Long Island
9h 55m
2 stops
LAS7:45 pmLas Vegas Harry Reid Intl
Oct 14
LAS10:50 pmLas Vegas Harry Reid Intl
8h 30m
1 stop
ISP10:20 amIslip Long Island
$357
Southwest
Oct 6
ISP4:20 pmIslip Long Island
9h 45m
2 stops
LAS11:05 pmLas Vegas Harry Reid Intl
Oct 14
LAS6:50 amLas Vegas Harry Reid Intl
10h 05m
2 stops
ISP7:55 pmIslip Long Island
$362
Southwest
Aug 27
ISP12:35 pmIslip Long Island
7h 30m
1 stop
LAS5:05 pmLas Vegas Harry Reid Intl
Sep 2
LAS12:20 amLas Vegas Harry Reid Intl
9h 15m
2 stops
ISP12:35 pmIslip Long Island
$374

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 28, 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

Sat 9/5

7:09 pm-9:21 am

1 stop17h 12m

Las Vegas Harry Reid Intl

Sat 9/12

10:12 pm-9:33 am

1 stop8h 21m

$240

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 8/29

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Tue 9/1

9:41 pm-9:53 am

1 stop9h 12m

$250

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 8/27

7:09 pm-9:44 pm

1 stop29h 35m

Las Vegas Harry Reid Intl

Thu 9/3

9:41 pm-6:14 pm

1 stop17h 33m

$250

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 9/8

4:58 pm-10:49 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Wed 9/9

11:30 am-11:22 pm

1 stop8h 52m

$337

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 10/6

12:50 pm-7:45 pm

2 stops9h 55m

Las Vegas Harry Reid Intl

Wed 10/14

10:50 pm-10:20 am

1 stop8h 30m

$357

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 10/6

4:20 pm-11:05 pm

2 stops9h 45m

Las Vegas Harry Reid Intl

Wed 10/14

6:50 am-7:55 pm

2 stops10h 05m

$362
Quickest round-trip

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 8/27

12:35 pm-5:05 pm

1 stop7h 30m

Las Vegas Harry Reid Intl

Wed 9/2

12:20 am-12:35 pm

2 stops9h 15m

$374

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 1/19

5:50 am-1:05 pm

1 stop10h 15m

Las Vegas Harry Reid Intl

Sat 1/23

9:55 pm-8:52 am

1 stop7h 57m

$390

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 1/19

5:50 am-1:05 pm

1 stop10h 15m

Las Vegas Harry Reid Intl

Fri 1/22

9:55 pm-8:52 am

1 stop7h 57m

$390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Prices are currently low for flights on this route.

Typical prices usually range from $277 to $612.
The lowest price recently found on this route was $240.

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Islip, New York, with most prices found around $289. The month of January is another great option to travel to Las Vegas, with average flight prices from Islip, New York averaging around $362.

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 $334. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $437. 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 $369. Flights to Las Vegas are more costly at noon, with an average ticket price of $410. 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

8h 51m

Direct flights

None
The fastest flight from Islip, New York to Las Vegas takes 8h 51m
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. 8h 51m 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
3,025 reviews
Search JetBlue flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,228 reviews
Search Southwest flights

  • Southwest Flights From Islip, New York to Las Vegas

    Across 1 Southwest flight from Islip, New York to Las Vegas this week, the average price was $587, with the best Southwest deals starting from $379 round-trip. 4,228 users have rated Southwest on momondo, with an average score of 8.0/10.

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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