What are the cheapest airlines flying from Islip, New York to Las Vegas round-trip?

Flying on JetBlue is currently your cheapest option to Las Vegas, with prices starting at $311. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $315 and $351, respectively. These flights start at 32% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Islip, New York to Las Vegas one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from Islip, New York to Las Vegas for a low price.

What is the cheapest day to fly from Islip, New York to Las Vegas?

Travelers seeking maximum savings on their Islip, New York to Las Vegas flight should consider departing on Thursday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What is the cheapest day to fly round-trip from Islip, New York to Las Vegas?

Users have found that flying from Islip, New York to Las Vegas on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Islip, New York to Las Vegas?

Travelers have found it’s best to book a flight 34 days in advance to save up to 52% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 34 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to Las Vegas 1-2 weeks in advance for as low as $308, or $424 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to Las Vegas?

February can be a great time to fly to Las Vegas from Islip, New York with a flight ticket averaging about $328. Cheapflights users have found deals in the month of February for as cheap as $95. The most expensive prices can be found in the month of April.

Can I find deals for flights from Islip to Las Vegas that include hotel bookings?

Yes. In addition to deals on Islip to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Islip to Las Vegas?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Las Vegas.

Can I find deals for business class flights from Islip to Las Vegas?

Yes. Cheapflights offers flight deals from Islip to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$158+ Flights from Islip, NY to Las Vegas

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Cheap flight deals from Islip to Las Vegas

Round-trip from	$311 (JetBlue)
One-way from	$158 (Frontier)
Popular in	December
Cheapest in	October
Average price	$464

From Islip Long Island to Las Vegas Harry Reid Intl

Search Deals

One-way flight from Islip Long Island to Las Vegas Harry Reid Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Islip to Las Vegas

Cheapest flights from Islip to Las Vegas
Explore the most affordable flight options available from Islip to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Wed 11/512:15 pmISP - LAS

1 stop10h 46mJetBlue

Tue 11/1110:10 pmLAS - ISP

1 stop8h 32mJetBlue

Deal found 6/28

$311

Wed 7/238:37 pmISP - LAS

1 stop27h 45mFrontier

Wed 7/303:34 pmLAS - ISP

1 stop29h 13mFrontier

Deal found 6/29

$315

Mon 10/135:35 pmISP - LAS

1 stop9h 30mSouthwest

Thu 10/166:45 amLAS - ISP

1 stop7h 05mSouthwest

Deal found 6/29

$351

Tue 7/84:45 pmISP - LAS

1 stop19h 27mMultiple Airlines

Thu 7/1012:52 amLAS - ISP

1 stop15h 50mMultiple Airlines

Deal found 6/28

$422

Best flights from Islip to Las Vegas
Discover carefully curated flight deals from Islip to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Wed 11/512:15 pmISP - LAS

1 stop10h 46mJetBlue

Tue 11/1110:10 pmLAS - ISP

1 stop8h 32mJetBlue

Deal found 6/28

$311

Wed 7/238:37 pmISP - LAS

1 stop27h 45mFrontier

Wed 7/303:34 pmLAS - ISP

1 stop29h 13mFrontier

Deal found 6/29

$315

Mon 10/135:35 pmISP - LAS

1 stop9h 30mSouthwest

Thu 10/166:45 amLAS - ISP

1 stop7h 05mSouthwest

Deal found 6/29

$351

Mon 7/148:38 pmISP - LAS

1 stop29h 51mMultiple Airlines

Thu 7/1712:52 amLAS - ISP

1 stop15h 50mMultiple Airlines

Deal found 6/28

$438

Last-minute flights from Islip to Las Vegas
Discover last-minute flight deals from Islip to Las Vegas. Data last updated June 30, 2025 and is based on user searches.

Thu 7/32:39 pmISP - LAS

1 stop11h 10mJetBlue

Mon 7/711:58 pmLAS - ISP

1 stop8h 43mJetBlue

Deal found 6/28

$637

Tue 7/84:45 pmISP - LAS

1 stop19h 27mFrontier

Fri 7/113:34 pmLAS - ISP

1 stop25h 08mFrontier

Deal found 6/28

$328

Tue 7/84:45 pmISP - LAS

1 stop19h 27mMultiple Airlines

Thu 7/1012:52 amLAS - ISP

1 stop15h 50mMultiple Airlines

Deal found 6/28

$422

Thu 7/107:39 pmISP - LAS

1 stop19h 15mBreeze Airways

Mon 7/1412:01 pmLAS - ISP

3 stops22h 14mBreeze Airways

Deal found 6/29

$1,091

Wed 7/238:37 pmISP - LAS

1 stop27h 45mFrontier

Wed 7/303:34 pmLAS - ISP

1 stop29h 13mFrontier

Deal found 6/29

$315

One-way flights from Islip to Las Vegas
Search for one-way flight options from Islip to Las Vegas. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Tue 8/266:05 amISP - LAS

2 stops12h 47mFrontier

Deal found 6/30

$158

Mon 9/811:35 amISP - LAS

1 stop13h 53mJetBlue

Deal found 6/29

$171

Mon 9/83:05 pmISP - LAS

2 stops10h 25mSouthwest

Deal found 6/29

$181

Mon 7/143:59 pmISP - LAS

3 stops29h 04mMultiple Airlines

Deal found 6/30

$364

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 11/5

12:15 pm-8:01 pm

1 stop10h 46m

Las Vegas Harry Reid Intl

Tue 11/11

10:10 pm-9:42 am

1 stop8h 32m

$311

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 7/23

8:37 pm-9:22 pm

1 stop27h 45m

Las Vegas Harry Reid Intl

Wed 7/30

3:34 pm-11:47 pm

1 stop29h 13m

$315

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 10/13

5:35 pm-12:05 am

1 stop9h 30m

Las Vegas Harry Reid Intl

Thu 10/16

6:45 am-4:50 pm

1 stop7h 05m

$351

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 7/14

8:38 pm-11:29 pm

1 stop29h 51m

Las Vegas Harry Reid Intl

Thu 7/17

12:52 am-7:42 pm

1 stop15h 50m

$438

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 8/26

6:05 am-3:52 pm

2 stops12h 47m

$158

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 9/8

11:35 am-10:28 pm

1 stop13h 53m

$171

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 9/8

3:05 pm-10:30 pm

2 stops10h 25m

$181

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 7/14

3:59 pm-6:03 pm

3 stops29h 04m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Islip to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Islip with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Las Vegas

What is the cheapest month to book a flight from Islip, New York to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Las Vegas (average of $198). Flying from Islip, New York to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ISP to LAS?

When flying from Islip, New York to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 15% versus a flight in the morning.

Reviews of airlines servicing Las Vegas

See what other customers who have flown with Southwest, JetBlue, and Frontier from Islip to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,278 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,278 reviews

Southwest

8.0

Very good

4,278 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

JetBlue

7.3

Good

2,920 reviews

Southwest

8.0

Very good

4,278 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,290 reviews

Southwest

8.0

Very good

4,278 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from Islip, New York to Las Vegas round-trip?
Flying on JetBlue is currently your cheapest option to Las Vegas, with prices starting at $311. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $315 and $351, respectively. These flights start at 32% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Islip, New York to Las Vegas one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from Islip, New York to Las Vegas for a low price.
Can I find deals for flights from Islip to Las Vegas that include hotel bookings?
Yes. In addition to deals on Islip to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Las Vegas?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Las Vegas.
Can I find deals for business class flights from Islip to Las Vegas?
Yes. Cheapflights offers flight deals from Islip to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Islip, New York to Las Vegas?
Currently, August is the cheapest month in which you can book a flight from Islip, New York to Las Vegas (average of $198). Flying from Islip, New York to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Las Vegas

Top 2 airlines flying from Islip to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$176	Average$246	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$392	Average$490	FlexibilityNo cancel fee	On-time63%

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$158+ Cheap flights from Islip, NY to Las Vegas (ISP - LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Las Vegas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Las Vegas

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Islip to Las Vegas

Cheapest flights from Islip to Las VegasExplore the most affordable flight options available from Islip to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Explore the most affordable flight options available from Islip to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Islip to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Islip with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Islip to Las Vegas

What is the cheapest month to book a flight from Islip, New York to Las Vegas?

What is the cheapest time of day to fly from ISP to LAS?

Find hourly flight availability from Islip to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

Reviews of airlines servicing Las Vegas

See what other customers who have flown with Southwest, JetBlue, and Frontier from Islip to Las Vegas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Islip to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Islip, New York to Las Vegas round-trip?

What are the cheapest airlines to fly from Islip, New York to Las Vegas one-way?

Can I find deals for flights from Islip to Las Vegas that include hotel bookings?

How can I find direct flights from Islip to Las Vegas?

Can I find deals for business class flights from Islip to Las Vegas?

What is the cheapest month to book a flight from Islip, New York to Las Vegas?

Traveling to a place near Islip?

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Alternative routes for Islip to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Islip to Las Vegas

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Cheapest flights from Islip to Las Vegas
Explore the most affordable flight options available from Islip to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 30, 2025.