What airlines fly to Las Vegas?

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Las Vegas from Islip, New York according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 7 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Islip Long Island to Las Vegas Harry Reid Intl?

Frontier and Southwest are the most popular carriers operating from Islip Long Island to Las Vegas Harry Reid Intl

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?

As of August 2026, there are 3 operators available to choose from 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.

$124 Cheap Flights from Islip, New York to Las Vegas in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Islip, New York to Las Vegas

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:55 pm - 7:47 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

15h 52m1 stop Orlando

10:06 pm - 5:31 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

16h 25m1 stop Orlando

$236Frontier

Mon, Oct 26 - Wed, Oct 28

5:43 pm - 8:07 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

17h 24m1 stop Orlando

10:06 pm - 4:58 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

15h 52m1 stop Orlando

$246Frontier

Tue, Sep 22 - Tue, Sep 29

5:43 pm - 8:07 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

17h 24m1 stop Orlando

10:15 pm - 5:56 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

16h 41m1 stop Orlando

$246Frontier

Tue, Sep 29 - Thu, Oct 29

6:33 pm - 7:47 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

16h 14m1 stop Orlando

8:00 am - 9:37 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

10h 37m1 stop Fort Lauderdale

$301Multiple Airlines

Sat, Nov 7 - Wed, Nov 11

3:02 pm - 10:18 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

10h 16m2 stops Raleigh-Durham New Orleans Louis Armstrong

10:15 pm - 5:30 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

16h 15m1 stop Orlando

$329Multiple Airlines

Mon, Oct 5 - Fri, Oct 9

7:10 pm - 12:35 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

8h 25m1 stop Orlando

7:50 am - 7:55 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 05m2 stops Albany Intl Baltimore/Washington

$340Southwest

Mon, Oct 26 - Wed, Oct 28

5:40 pm - 12:50 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

10h 10m2 stops Baltimore/Washington Chicago Midway

6:50 am - 7:55 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

10h 05m2 stops Nashville Intl Baltimore/Washington

$345Southwest

Mon, Oct 26 - Wed, Oct 28

1:55 pm - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

10h 49m1 stop Orlando

8:00 am - 9:37 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

10h 37m1 stop Fort Lauderdale

$355JetBlue

Mon, Oct 26 - Wed, Oct 28

5:50 am - 1:05 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

10h 15m1 stop Fort Lauderdale

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

6:33 pm - 7:47 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

16h 14m1 stop Orlando

9:43 pm - 2:22 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

37h 39m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

$394Multiple Airlines

Sat, Nov 7 - Wed, Nov 11

Cheap last minute flights

Enter your travel dates to find the best prices.

2:33 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

11h 16m2 stops Charleston New Orleans Louis Armstrong

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$411Multiple Airlines

Sat, Aug 29 - Sat, Sep 5

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$429Frontier

Sat, Aug 29 - Sat, Sep 5

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$454Frontier

Wed, Aug 26 - Mon, Aug 31

10:57 am - 11:48 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

27h 51m1 stop Orlando

9:41 pm - 6:14 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

17h 33m1 stop Orlando

$470Frontier

Fri, Aug 28 - Fri, Sep 4

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$470Frontier

Wed, Aug 26 - Sat, Aug 29

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

11:25 pm - 1:28 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

11h 03m2 stops New Orleans Louis Armstrong Raleigh-Durham

$568Multiple Airlines

Thu, Aug 27 - Sun, Aug 30

2:33 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

11h 16m2 stops Charleston New Orleans Louis Armstrong

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$618Multiple Airlines

Wed, Aug 26 - Mon, Aug 31

7:49 pm - 10:42 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

17h 53m1 stop Norfolk

11:25 pm - 4:47 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

14h 22m2 stops New Orleans Louis Armstrong Raleigh-Durham

$622Breeze Airways

Thu, Aug 27 - Mon, Aug 31

7:49 pm - 10:42 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

17h 53m1 stop Norfolk

11:25 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

31h 28m2 stops New Orleans Louis Armstrong Orlando

$625Multiple Airlines

Thu, Aug 27 - Sun, Aug 30

4:58 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

8h 51m1 stop Fort Lauderdale

7:00 am - 9:49 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

11h 49m1 stop Fort Lauderdale

$2,070JetBlue

Tue, Aug 25 - Thu, Aug 27

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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 26

ISP6:55 pmIslip Long Island

15h 52m

1 stop

LAS7:47 amLas Vegas Harry Reid Intl

Oct 28

LAS10:06 pmLas Vegas Harry Reid Intl

16h 25m

1 stop

ISP5:31 pmIslip Long Island

$236

Frontier

Sep 22

ISP5:43 pmIslip Long Island

17h 24m

1 stop

LAS8:07 amLas Vegas Harry Reid Intl

Sep 29

LAS10:06 pmLas Vegas Harry Reid Intl

15h 52m

1 stop

ISP4:58 pmIslip Long Island

$246

Frontier

Oct 5

ISP5:43 pmIslip Long Island

17h 24m

1 stop

LAS8:07 amLas Vegas Harry Reid Intl

Oct 9

LAS10:15 pmLas Vegas Harry Reid Intl

16h 15m

1 stop

ISP5:30 pmIslip Long Island

$263

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets

Southwest

Oct 26

ISP7:10 pmIslip Long Island

8h 25m

1 stop

LAS12:35 amLas Vegas Harry Reid Intl

Oct 28

LAS7:50 amLas Vegas Harry Reid Intl

9h 05m

2 stops

ISP7:55 pmIslip Long Island

$340

Southwest

Oct 20

ISP6:05 amIslip Long Island

9h 45m

2 stops

LAS12:50 pmLas Vegas Harry Reid Intl

Oct 23

LAS12:10 amLas Vegas Harry Reid Intl

8h 45m

2 stops

ISP11:55 amIslip Long Island

$345

Southwest

Oct 24

ISP12:20 pmIslip Long Island

9h 50m

2 stops

LAS7:10 pmLas Vegas Harry Reid Intl

Oct 27

LAS10:15 pmLas Vegas Harry Reid Intl

10h 55m

1 stop

ISP12:10 pmIslip Long Island

$346

momondo Fare Finder

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

Mon 10/26

6:55 pm-7:47 am

1 stop15h 52m

Las Vegas Harry Reid Intl

Wed 10/28

10:06 pm-5:31 pm

1 stop16h 25m

$236

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/22

5:43 pm-8:07 am

1 stop17h 24m

Las Vegas Harry Reid Intl

Tue 9/29

10:06 pm-4:58 pm

1 stop15h 52m

$246

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/29

5:43 pm-8:07 am

1 stop17h 24m

Las Vegas Harry Reid Intl

Thu 10/29

10:15 pm-5:56 pm

1 stop16h 41m

$246

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Sat 11/7

6:33 pm-7:47 am

1 stop16h 14m

Las Vegas Harry Reid Intl

Wed 11/11

8:00 am-9:37 pm

1 stop10h 37m

$301

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 10/5

3:02 pm-10:18 pm

2 stops10h 16m

Las Vegas Harry Reid Intl

Fri 10/9

10:15 pm-5:30 pm

1 stop16h 15m

$329

Quickest round-trip

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 10/26

7:10 pm-12:35 am

1 stop8h 25m

Las Vegas Harry Reid Intl

Wed 10/28

7:50 am-7:55 pm

2 stops9h 05m

$340

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 10/26

5:40 pm-12:50 am

2 stops10h 10m

Las Vegas Harry Reid Intl

Wed 10/28

6:50 am-7:55 pm

2 stops10h 05m

$345

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 10/26

1:55 pm-9:44 pm

1 stop10h 49m

Las Vegas Harry Reid Intl

Wed 10/28

8:00 am-9:37 pm

1 stop10h 37m

$355

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

Sat 11/7

6:33 pm-7:47 am

1 stop16h 14m

Las Vegas Harry Reid Intl

Wed 11/11

9:43 pm-2:22 pm

2 stops37h 39m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $341 to $464.
The lowest price recently found on this route was $236.

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 $343. Flights from Islip, New York to Las Vegas on a Thursday will generally be more expensive and average around $446. 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

Best Price Found	$124
Fastest flight time	8h 50m
Direct flights	None

The best one-way flight to Las Vegas from Islip, New York in the past 72 hours is $124. The best round-trip flight deal from Islip, New York to Las Vegas found on momondo in the last 72 hours is $236.

The fastest flight from Islip, New York to Las Vegas takes 8h 50m

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 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?
As of August 2026, there are 3 operators available to choose from 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?
Based on momondo bookings for flights between Islip, New York and Las Vegas, the leading airline is Southwest, making up 63% of the total bookings. Other popular airlines include JetBlue with 19% and Frontier with 17%.

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
Frontier	PriceFrom $71	Free Cancellation	Rating 5.6 2,648 reviews	Search Frontier flights
JetBlue	PriceFrom $170	Free Cancellation	Rating 7.1 3,034 reviews	Search JetBlue flights
Southwest	PriceFrom $384	Free Cancellation	Rating 8.0 4,203 reviews	Search Southwest flights

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Mesquite

Sunrise Manor

Pahrump

Furnace Creek

Primm

Winchester

Boulder City

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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Cheap flights from Islip, New York to Las Vegas from $124

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 11/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Islip, New York to Las Vegas

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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

Southwest flights from Islip, New York to Las Vegas

Our best Southwest deals on Islip, New York to Las Vegas flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to Las Vegas that are best for you.

See travel insights to Las Vegas from

How to get the cheapest flight ticket from Islip, New York to Las Vegas

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?

What is the cheapest day to depart on your flight to Las Vegas?

What is the cheapest time of day to depart on your flight to Las Vegas?

What is the cheapest airline that flies from Islip Long Island to Las Vegas Harry Reid Intl?

What airlines fly to Las Vegas?

When to book flights from Islip, New York to Las Vegas

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Las Vegas?

Why use momondo?

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Nevada

Fly your favorite airline to Las Vegas

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Las Vegas

List of cabin classes available on flights landing in Las Vegas. Availability may vary depending on flight origin and airline.

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