$143+ Cheap flights from Islip, NY to Las Vegas (ISP - LAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAS
Oct 28 — Nov 41
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Islip to Las Vegas with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Islip to Las Vegas
Cheapest
Best
Last-minute
One-way
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 September 28, 2026.
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 September 28, 2026.
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:30 pm -
1 stop8h 40m
Wed 11/1110:50 pm -
1 stop10h 50m
Deal found 9/26![Southwest logo]()
$350
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:40 pm -
2 stops9h 15m
Mon 11/1610:50 pm -
2 stops9h 55m
Deal found 9/23![Southwest logo]()
$375
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:05 am -
1 stop7h 25m
Fri 12/116:45 am -
1 stop7h 20m
Deal found 9/24![Southwest logo]()
$383
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:10 pm -
1 stop8h 30m
Mon 10/2610:15 pm -
1 stop10h 55m
Deal found 9/25![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:30 pm -
2 stops11h 10m
Tue 12/158:45 am -
2 stops9h 55m
Deal found 9/24![Southwest logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1012:00 pm -
2 stops14h 08m
Tue 11/2411:57 pm -
1 stop16h 09m
Deal found 9/25![Multiple Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:20 pm -
1 stop8h 30m
Sun 11/110:50 pm -
1 stop10h 50m
Deal found 9/28![Southwest logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:33 pm -
1 stop19h 14m
Wed 11/117:20 am -
2 stops23h 57m
Deal found 9/26![Multiple Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:05 pm -
1 stop8h 50m
Mon 12/215:30 pm -
1 stop12h 15m
Deal found 9/25![Southwest logo]()
$421
Best flights from Islip to Las VegasDiscover 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 September 28, 2026.
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 September 28, 2026.
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:30 pm -
1 stop8h 40m
Wed 11/1110:50 pm -
2 stops9h 55m
Deal found 9/26![Southwest logo]()
$355
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:40 pm -
2 stops9h 15m
Mon 11/1610:50 pm -
2 stops9h 55m
Deal found 9/23![Southwest logo]()
$375
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:05 am -
1 stop7h 25m
Fri 12/116:45 am -
1 stop7h 20m
Deal found 9/24![Southwest logo]()
$383
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:10 pm -
1 stop8h 30m
Mon 10/2611:35 pm -
2 stops9h 35m
Deal found 9/25![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:05 pm -
1 stop8h 00m
Tue 12/158:45 am -
2 stops9h 55m
Deal found 9/24![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:20 pm -
1 stop8h 30m
Sun 11/110:50 pm -
2 stops13h 45m
Deal found 9/28![Southwest logo]()
$427
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:20 pm -
1 stop8h 30m
Sat 10/246:15 am -
1 stop6h 55m
Deal found 9/26![Southwest logo]()
$431
This Southwest deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/612:25 pm -
1 stop12h 40m
Mon 11/910:20 pm -
1 stop10h 25m
Deal found 9/27![Southwest logo]()
$497
Last-minute flights from Islip to Las VegasDiscover last-minute flight deals from Islip to Las Vegas. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Las Vegas. Data last updated September 28, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:10 pm -
1 stop8h 30m
Mon 10/2610:15 pm -
1 stop10h 55m
Deal found 9/25![Southwest logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:00 pm -
2 stops13h 52m
Fri 10/2310:15 pm -
1 stop16h 15m
Deal found 9/28![Multiple Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:20 pm -
1 stop8h 30m
Sat 10/246:15 am -
1 stop6h 55m
Deal found 9/26![Southwest logo]()
$431
This Expedia deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop15h 16m
Fri 10/3010:15 pm -
1 stop16h 16m
Deal found 9/28![Multiple Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:20 pm -
2 stops9h 50m
Fri 10/3010:50 pm -
1 stop9h 00m
Deal found 9/28![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:10 pm -
1 stop12h 00m
Sun 10/2510:50 pm -
1 stop8h 30m
Deal found 9/26![Southwest logo]()
$457
This Frontier deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:25 pm -
2 stops19h 11m
Fri 10/309:43 pm -
2 stops16h 48m
Deal found 9/24![Frontier logo]()
$443
This Frontier deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:25 pm -
2 stops19h 11m
Wed 10/289:43 pm -
2 stops16h 48m
Deal found 9/24![Frontier logo]()
$463
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:20 pm -
1 stop8h 30m
Sun 11/110:50 pm -
1 stop10h 50m
Deal found 9/28![Southwest logo]()
$416
One-way flights from Islip to Las VegasSearch for one-way flight options from Islip to Las Vegas. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
Search for one-way flight options from Islip to Las Vegas. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/151:38 pm -
3 stops37h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$143
This Southwest deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/155:05 pm -
1 stop8h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$168
This JetBlue deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:26 pm -
1 stop9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![JetBlue logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:25 pm -
1 stop23h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$277
This Frontier deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:55 pm -
2 stops22h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:25 pm -
2 stops19h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$315
This Frontier deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:33 pm -
2 stops19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Frontier logo]()
$327
This KAYAK deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:36 pm -
1 stop12h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![JetBlue logo]()
$332
Find flight deals from Islip to Las Vegas
Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $350 (Southwest) |
One-way from | $143 (Kiwi.com) |
Popular in | November |
Cheapest in | August |
Average price | $566 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip 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, Cheapflights users made 7,457,451 searches. Data last updated September 28, 2026.
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
Cheapest round-trip
Quickest round-trip
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Tue 12/15
5:05 pm-10:55 pm
1 stop8h 50m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$168
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Mon 11/2
3:26 pm-9:59 pm
1 stop9h 33m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$184
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Mon 11/9
3:10 pm-9:59 pm
1 stop9h 49m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$349
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Sat 11/7
3:30 pm-9:10 pm
1 stop8h 40m
Las Vegas Harry Reid Intl
Wed 11/11
10:50 pm-11:45 am
2 stops9h 55m
$355
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Fri 11/27
1:35 pm-12:15 am
2 stops13h 40m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$359
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Fri 11/13
5:40 pm-11:55 pm
2 stops9h 15m
Las Vegas Harry Reid Intl
Mon 11/16
10:50 pm-11:45 am
2 stops9h 55m
$375
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Tue 12/8
6:05 am-10:30 am
1 stop7h 25m
Las Vegas Harry Reid Intl
Fri 12/11
6:45 am-5:05 pm
1 stop7h 20m
$383
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Mon 10/19
7:10 pm-12:40 am
1 stop8h 30m
Las Vegas Harry Reid Intl
Mon 10/26
11:35 pm-12:10 pm
2 stops9h 35m
$388
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Tue 12/8
4:05 pm-9:05 pm
1 stop8h 00m
Las Vegas Harry Reid Intl
Tue 12/15
8:45 am-9:40 pm
2 stops9h 55m
$388
IslipLas Vegas
ISP Islip Long Island - LAS Las Vegas Harry Reid Intl
ISPLAS
Islip Long Island
Thu 10/8
6:25 pm-10:36 am
2 stops19h 11m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$414
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Islip to Las Vegas
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Las Vegas in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Islip, New York-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Las Vegas flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Islip, New York-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
ISP-LAS
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
Reviews of airlines servicing Las Vegas
Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated September 28, 2026.
See what other customers who have flown with Southwest 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.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
Traveling to a place near Las Vegas?
Book flights to Las Vegas if you plan to visit one of these locationsParadise
Mesquite
Henderson
Kingman
North Las Vegas
Boulder City
Needles
Winchester
Sunrise Manor
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Las Vegas flight routes
Other flight options
Other flights from Islip
Popular flights
Alternative routes for Islip to Las Vegas
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Las Vegas by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Islip to Las Vegas by cabin class
Find flights from Islip to Las Vegas, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Las Vegas
Explore flights to Las Vegas departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Islip and Las Vegas flights
Browse other Islip and Las Vegas flight options. Last updated on September 28, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Islip to Las Vegas
Discover the top 2 airlines that operate flights from Islip to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$71 | Average$289 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$456 | Average$638 | FlexibilityNo cancel fee | On-time63% |