ISP - LAS

$158 Find Cheap Flights from Islip to Las Vegas - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$360
Typical prices: $403-$659
Southwest
Sat 2/17Tue 2/20
ISP - LAS • 1 stop
Cheapest one-way
$158
Typical prices: $233-$368
JetBlue
Tue 1/9
ISP - LAS • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Islip and Las Vegas. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
August
Cheapest • 46% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Orlando (MCO)
Cheapest • Avg $326 (round-trip)
Baltimore/Washington (BWI)
Shortest trip • 8h 20m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Islip to Las Vegas (ISP-LAS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Las Vegas

Wed, Feb 17 - Sat, Feb 20
Southwest Logo
3:25 pm - 8:40 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
8h 15m1 stop Baltimore/Washington
Southwest Logo
6:55 am - 7:15 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 20m2 stops Nashville Intl Baltimore/Washington
$360Southwest
Wed, Feb 17 - Sat, Feb 20
Southwest Logo
5:45 am - 2:40 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
11h 55m2 stops Baltimore/Washington Detroit Metropolitan Wayne County
Southwest Logo
6:55 am - 7:15 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 20m2 stops Nashville Intl Baltimore/Washington
$366Southwest
Fri, Nov 20 - Mon, Nov 23
Frontier Logo
4:40 pm - 8:19 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
18h 39m1 stop Orlando
Frontier Logo
11:57 pm - 3:45 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
12h 48m1 stop Orlando
$371Frontier
Thu, Jan 14 - Mon, Jan 18
Southwest Logo
12:30 pm - 7:40 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
10h 10m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
Southwest Logo
10:30 pm - 2:35 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
13h 05m1 stop Orlando
$381Southwest
Thu, Jan 14 - Mon, Jan 18
Southwest Logo
12:30 pm - 7:40 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
10h 10m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
Southwest Logo
11:25 pm - 11:50 amLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 25m2 stops Nashville Intl Baltimore/Washington
$381Southwest
Thu, Dec 17 - Sat, Dec 19
JetBlue Logo
6:00 am - 12:28 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
9h 28m1 stop Fort Lauderdale
JetBlue Logo
9:37 am - 10:04 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 27m1 stop Fort Lauderdale
$382JetBlue
Thu, Dec 17 - Sun, Dec 20
JetBlue Logo
6:00 am - 12:28 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
9h 28m1 stop Fort Lauderdale
JetBlue Logo
9:37 am - 10:04 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 27m1 stop Fort Lauderdale
$407JetBlue
Thu, Dec 17 - Mon, Dec 21
JetBlue Logo
6:00 am - 12:28 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
9h 28m1 stop Fort Lauderdale
JetBlue Logo
9:37 am - 9:50 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
9h 13m1 stop Fort Lauderdale
$407JetBlue
Fri, Nov 20 - Mon, Nov 23
Frontier Logo
4:40 pm - 11:07 pmISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
33h 27m2 stops Orlando Houston George Bush Intcntl
Frontier Logo
11:57 pm - 3:45 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
12h 48m1 stop Orlando
$423Frontier
Thu, Nov 19 - Sun, Nov 22
Frontier Logo
6:33 pm - 7:56 amISP  Islip Long Island-LAS Las Vegas Harry Reid Intl
16h 23m1 stop Orlando
Frontier Logo
11:57 pm - 3:45 pmLAS  Las Vegas Harry Reid Intl-ISP Islip Long Island
12h 48m1 stop Orlando
$457Frontier
Booking Insights

Price, demand and travel trends for Islip to Las Vegas flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Islip to Las Vegas?

Round-trip flights from Islip to Las Vegas typically range from $403 to $659. The lowest price found in the past 5 days was $360, on Southwest.

What's the cheapest day of the week to fly from Islip to Las Vegas?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Islip to Las Vegas. It’s 31% cheaper than the average day, while Sunday is the most expensive, with prices 63% higher.

What’s the cheapest month to fly from Islip to Las Vegas?

•August is the cheapest month to fly from Islip to Las Vegas at $289 round-trip.
•April ($840) and July ($668) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 190% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Islip to Las Vegas flights

Low season

October

Cheapest flight

$158
Beat the crowds with an average 43% drop in travelers.
The most popular month to fly with an average 49% increase in travelers.
One-way flight from Islip to Las Vegas

When to book flights from Islip to Las Vegas

Are your dates flexible? Find out the best times to travel from Islip to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Islip to Las Vegas flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Islip to Las Vegas?

    Only Economy Class is available on flights from Islip to Las Vegas.

  • How long is a flight from Islip to Las Vegas?

    A nonstop flight from Islip to Las Vegas takes 00m, covering 2,275 miles.

  • Do I need a passport to fly from Islip to Las Vegas?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Islip to Las Vegas flight?

    Round-trip flights from Islip to Las Vegas range from $403 to $659, with an average of $534 over the past 12 months. Anything below $403 counts as a good deal.

  • Have flight prices from Islip to Las Vegas changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $371 to $2,379. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Islip to Las Vegas looking right now?

    One-way fares from Islip to Las Vegas are currently lower than usual. Average one-way flight prices are about $258, which is 9% below the typical average for this route.

  • What car rental options are available at Las Vegas Harry Reid Intl Airport (LAS)?

    Las Vegas Harry Reid Intl Airport (LAS) hosts 5 major car rental companies, with daily rates averaging $54 for economy cars. Top options include:

    • Easirent
    • Fox
    • Ace
    • Dollar
    • Thrifty

  • Which airports can I use when flying from Islip to Las Vegas?

    Flights from Islip to Las Vegas usually depart from Islip Long Island (ISP) and arrive at Las Vegas Harry Reid Intl (LAS).

  • Which airports do connecting flights from Islip to Las Vegas pass through?

    One-stop flights from Islip to Las Vegas most commonly connect through:

    • Baltimore/Washington (BWI) - 72% of one-stop connections
    • Orlando (MCO) - 19% of one-stop connections
    • Fort Lauderdale (FLL) - 6% of one-stop connections
    • Tampa (TPA) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Islip to Las Vegas?

    Yes. Flexible dates can save you up to 58% on flights from Islip to Las Vegas. Saturday is the cheapest departure day at $370 round-trip on average, while Sunday is the most expensive at $874, a difference of $504.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different layover airport from Islip to Las Vegas?

    Flying via Baltimore/Washington (BWI) gives the shortest average 1-stop total travel time at 8h 20m, compared with 9h 45m via Fort Lauderdale (FLL) and 14h 34m via Orlando (MCO).

  • What is the time difference between Islip and Las Vegas?

    Las Vegas is 3 hours behind Islip (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Las Vegas?

    Some of the most popular sights in Las Vegas are Fremont Street Experience, Las Vegas Convention Center and Wynn Las Vegas. These are among the most viewed places in Las Vegas on KAYAK.

Your guide to booking Islip to Las Vegas flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $370, about $504 less than Sunday fares (58% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Islip to Las Vegas trip for August. Fares historically average $289 round-trip in that month - typically $551 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Las Vegas Harry Reid Intl Airport.

    • Four Seasons Hotel Las Vegas
    • DoubleTree by Hilton Las Vegas-Airport
    • OYO Hotel And Casino Las Vegas

More options for your flight from Islip to Las Vegas

Complete your trip to Las Vegas with a hotel stay or car rental

Car rentals in Las Vegas
Hotels in Las Vegas
Vacations in Las Vegas