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Cheap flights from Islip, New York to Las Vegas from $166

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 10/23. 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
5:43 pm - 8:07 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
17h 24m1 stop Orlando
Frontier Logo
10:06 pm - 5:30 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
16h 24m1 stop Orlando
$246Frontier
Tue, Oct 6 - Sat, Oct 17
Frontier Logo
5:43 pm - 8:07 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
17h 24m1 stop Orlando
Frontier Logo
10:06 pm - 4:58 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
15h 52m1 stop Orlando
$253Frontier
Fri, Sep 11 - Tue, Sep 15
Frontier Logo
3:43 pm - 9:26 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
20h 43m1 stop Orlando
Frontier Logo
10:15 pm - 2:33 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
13h 18m1 stop Orlando
$297Frontier
Wed, Nov 11 - Mon, Nov 16
Frontier Logo
5:43 pm - 8:07 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
17h 24m1 stop Orlando
Frontier Logo
10:15 pm - 4:58 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
15h 43m1 stop Orlando
$328Frontier
Sat, Sep 19 - Thu, Sep 24
Southwest Logo
6:05 am - 12:50 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
9h 45m2 stops Baltimore/Washington Austin Bergstrom
Southwest Logo
12:10 am - 11:55 amLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
8h 45m2 stops Chicago Midway Baltimore/Washington
$345Southwest
Tue, Oct 6 - Fri, Oct 16
Southwest Logo
7:10 pm - 12:35 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
8h 25m1 stop Orlando
Southwest Logo
9:10 am - 10:35 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
10h 25m2 stops Dallas Love Field Baltimore/Washington
$354Southwest
Fri, Oct 23 - Wed, Oct 28
JetBlue Logo
5:50 am - 1:05 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
10h 15m1 stop Fort Lauderdale
JetBlue Logo
9:55 pm - 8:52 amLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
7h 57m1 stop Orlando
$355JetBlue
Tue, Jan 19 - Sat, Jan 23
Southwest Logo
5:40 pm - 12:05 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
9h 25m1 stop Baltimore/Washington
Southwest Logo
10:15 pm - 12:10 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
10h 55m1 stop Baltimore/Washington
$355Southwest
Fri, Oct 2 - Mon, Oct 5
JetBlue Logo
1:55 pm - 9:44 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
10h 49m1 stop Orlando
JetBlue Logo
8:00 am - 9:37 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
10h 37m1 stop Fort Lauderdale
$415JetBlue
Mon, Nov 2 - Wed, Nov 4
JetBlue Logo
5:50 am - 1:05 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
10h 15m1 stop Fort Lauderdale
JetBlue Logo
9:55 pm - 8:52 amLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
7h 57m1 stop Orlando
$415JetBlue
Mon, Jan 11 - Wed, Jan 13

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Frontier flights from Islip, New York to Las Vegas

Our best Frontier deals on Islip, New York to Las Vegas flight tickets
Frontier
Oct 6
ISP5:43 pmIslip Long Island
17h 24m
1 stop
LAS8:07 amLas Vegas Harry Reid Intl
Oct 17
LAS10:06 pmLas Vegas Harry Reid Intl
16h 24m
1 stop
ISP5:30 pmIslip Long Island
$246
Frontier
Sep 11
ISP5:43 pmIslip Long Island
17h 24m
1 stop
LAS8:07 amLas Vegas Harry Reid Intl
Sep 15
LAS10:06 pmLas Vegas Harry Reid Intl
15h 52m
1 stop
ISP4:58 pmIslip Long Island
$253
Frontier
Nov 11
ISP3:43 pmIslip Long Island
20h 43m
1 stop
LAS9:26 amLas Vegas Harry Reid Intl
Nov 16
LAS10:15 pmLas Vegas Harry Reid Intl
13h 18m
1 stop
ISP2:33 pmIslip Long Island
$297

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
ISP6:05 amIslip Long Island
9h 45m
2 stops
LAS12:50 pmLas Vegas Harry Reid Intl
Oct 16
LAS12:10 amLas Vegas Harry Reid Intl
8h 45m
2 stops
ISP11:55 amIslip Long Island
$345
Southwest
Oct 2
ISP5:40 pmIslip Long Island
9h 25m
1 stop
LAS12:05 amLas Vegas Harry Reid Intl
Oct 5
LAS10:15 pmLas Vegas Harry Reid Intl
10h 55m
1 stop
ISP12:10 pmIslip Long Island
$355
Southwest
Sep 11
ISP12:35 pmIslip Long Island
8h 45m
2 stops
LAS6:20 pmLas Vegas Harry Reid Intl
Sep 15
LAS11:00 pmLas Vegas Harry Reid Intl
8h 15m
1 stop
ISP10:15 amIslip Long Island
$357

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 August 17, 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 Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 10/6

5:43 pm-8:07 am

1 stop17h 24m

Las Vegas Harry Reid Intl

Sat 10/17

10:06 pm-5:30 pm

1 stop16h 24m

$246

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Fri 9/11

5:43 pm-8:07 am

1 stop17h 24m

Las Vegas Harry Reid Intl

Tue 9/15

10:06 pm-4:58 pm

1 stop15h 52m

$253

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Wed 11/11

3:43 pm-9:26 am

1 stop20h 43m

Las Vegas Harry Reid Intl

Mon 11/16

10:15 pm-2:33 pm

1 stop13h 18m

$297

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Sat 9/19

5:43 pm-8:07 am

1 stop17h 24m

Las Vegas Harry Reid Intl

Thu 9/24

10:15 pm-4:58 pm

1 stop15h 43m

$328

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 10/6

6:05 am-12:50 pm

2 stops9h 45m

Las Vegas Harry Reid Intl

Fri 10/16

12:10 am-11:55 am

2 stops8h 45m

$345

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Fri 10/23

7:10 pm-12:35 am

1 stop8h 25m

Las Vegas Harry Reid Intl

Wed 10/28

9:10 am-10:35 pm

2 stops10h 25m

$354
Quickest round-trip

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

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

$355

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Fri 10/2

5:40 pm-12:05 am

1 stop9h 25m

Las Vegas Harry Reid Intl

Mon 10/5

10:15 pm-12:10 pm

1 stop10h 55m

$355

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 11/2

1:55 pm-9:44 pm

1 stop10h 49m

Las Vegas Harry Reid Intl

Wed 11/4

8:00 am-9:37 pm

1 stop10h 37m

$415

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 1/11

5:50 am-1:05 pm

1 stop10h 15m

Las Vegas Harry Reid Intl

Wed 1/13

9:55 pm-8:52 am

1 stop7h 57m

$415

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 August is, on average, the cheapest month to fly to Las Vegas from Islip, New York, with most prices found around $277. 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 $340. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $439. 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 $373. Flights to Las Vegas are more costly at noon, with an average ticket price of $415. 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
3,030 reviews
Search JetBlue flights
SouthwestPriceFrom $384Free CancellationRating
8.0
4,217 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
Mount Charleston
Laughlin
Paradise
Henderson
North Las Vegas
Kingman
Mesquite
Sunrise Manor
Pahrump
Furnace Creek
Winchester
Boulder City
Primm
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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