$164+ Cheap flights from Las Vegas to Islip, NY (LAS - ISP)
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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ISP
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to Islip 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
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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 Las Vegas to Islip
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Cheapest flights from Las Vegas to IslipExplore the most affordable flight options available from Las Vegas to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
Explore the most affordable flight options available from Las Vegas to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2026.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:15 pm -
1 stop16h 15m
Thu 10/296:33 pm -
1 stop19h 14m
Deal found 9/26![Frontier logo]()
$282
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 11/245:30 pm -
1 stop12h 15m
Sat 12/1212:45 pm -
1 stop8h 40m
Deal found 9/28![Southwest logo]()
$388
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:15 pm -
1 stop16h 15m
Tue 10/272:28 pm -
1 stop21h 50m
Deal found 9/28![Multiple Airlines logo]()
$445
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.
Fri 10/210:15 pm -
1 stop15h 43m
Tue 10/65:43 pm -
1 stop17h 24m
Deal found 9/28![Frontier logo]()
$545
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.
Sun 10/2510:50 pm -
1 stop8h 30m
Sun 11/15:40 pm -
1 stop7h 20m
Deal found 9/25![Southwest logo]()
$548
Best flights from Las Vegas to IslipDiscover carefully curated flight deals from Las Vegas to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Las Vegas to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
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 11/245:30 pm -
1 stop12h 15m
Sat 12/1212:45 pm -
2 stops9h 45m
Deal found 9/28![Southwest logo]()
$394
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:15 pm -
1 stop16h 15m
Tue 10/272:28 pm -
1 stop21h 50m
Deal found 9/27![Multiple Airlines logo]()
$450
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:53 pm -
2 stops40h 37m
Sun 10/186:25 pm -
2 stops43h 16m
Deal found 9/28![Frontier logo]()
$657
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:34 pm -
3 stops19h 46m
Thu 10/297:45 pm -
3 stops19h 23m
Deal found 9/26![Breeze Airways logo]()
$919
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.
Sun 10/2510:50 pm -
1 stop8h 30m
Sun 11/15:35 am -
2 stops10h 25m
Deal found 9/25![Southwest logo]()
$553
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.
Fri 10/169:53 pm -
2 stops16h 37m
Sun 10/186:25 pm -
2 stops19h 11m
Deal found 9/27![Frontier logo]()
$683
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.
Wed 10/149:53 pm -
2 stops16h 37m
Sun 10/186:25 pm -
2 stops19h 11m
Deal found 9/28![Frontier logo]()
$688
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.
Sun 10/1110:50 pm -
1 stop8h 30m
Thu 10/155:40 pm -
1 stop9h 30m
Deal found 9/26![Southwest logo]()
$779
This Frontier deal was found by Cheapflights users on 9/29. 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.
Fri 10/169:53 pm -
2 stops16h 37m
Mon 10/196:55 pm -
2 stops22h 17m
Deal found 9/29![Frontier logo]()
$709
Last-minute flights from Las Vegas to IslipDiscover last-minute flight deals from Las Vegas to Islip. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Islip. Data last updated September 29, 2026 and is based on user searches.
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.
Fri 10/210:15 pm -
1 stop15h 43m
Tue 10/65:43 pm -
1 stop17h 24m
Deal found 9/28![Frontier logo]()
$545
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:15 pm -
1 stop16h 15m
Thu 10/296:33 pm -
1 stop19h 14m
Deal found 9/26![Frontier logo]()
$282
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:15 pm -
1 stop16h 15m
Tue 10/272:28 pm -
1 stop21h 50m
Deal found 9/28![Multiple Airlines logo]()
$445
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.
Sun 10/2510:50 pm -
1 stop8h 30m
Sun 11/15:40 pm -
1 stop7h 20m
Deal found 9/25![Southwest logo]()
$548
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:25 pm -
2 stops11h 57m
Sun 11/16:33 pm -
2 stops19h 30m
Deal found 9/25![Multiple Airlines logo]()
$606
One-way flights from Las Vegas to IslipSearch for one-way flight options from Las Vegas to Islip. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Las Vegas to Islip. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:28 pm -
1 stop8h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![JetBlue logo]()
$164
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.
Wed 12/29:36 pm -
1 stop13h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$169
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.
Fri 10/2310:15 pm -
1 stop16h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Frontier logo]()
$172
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.
Fri 10/2311:35 pm -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$188
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.
Sat 10/2410:50 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$216
This JetBlue deal was found by Cheapflights users on 9/29. 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 12/1410:20 pm -
1 stop8h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![JetBlue logo]()
$219
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.
Fri 11/139:43 pm -
2 stops16h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$237
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.
Fri 10/237:15 am -
3 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$240
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:20 pm -
1 stop8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![JetBlue logo]()
$249
This JetBlue deal was found by Cheapflights users on 9/29. 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 11/3010:20 pm -
1 stop8h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![JetBlue logo]()
$259
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.
Sat 12/59:36 pm -
1 stop13h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Frontier logo]()
$267
Find flight deals from Las Vegas to Islip
Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Islip (ISP). 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 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $282 (Cheapflightsfares) |
One-way from | $164 (JetBlue) |
Popular in | September |
Cheapest in | January |
Average price | $352 |
Cheapflights Fare Finder
Customize your flight search to find flights from Las Vegas to Islip 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 29, 2026.
Use the filters below to find and compare flights from Las Vegas to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Wed 11/18
9:28 pm-8:50 am
1 stop8h 22m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$164
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Fri 10/23
11:35 pm-11:55 am
2 stops9h 20m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$188
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Sat 10/24
10:50 pm-10:20 am
1 stop8h 30m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$216
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Thu 11/26
9:55 am-10:40 pm
1 stop9h 45m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$219
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Mon 12/14
10:20 pm-9:59 am
1 stop8h 39m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$219
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Fri 11/13
9:43 pm-5:31 pm
2 stops16h 48m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$237
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Mon 11/30
10:20 pm-9:47 am
1 stop8h 27m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$259
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Tue 10/20
7:00 am-9:37 pm
1 stop11h 37m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$337
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Sat 10/10
7:00 am-9:37 pm
1 stop11h 37m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$377
Las VegasIslip
LAS Las Vegas Harry Reid Intl - ISP Islip Long Island
LASISP
Las Vegas Harry Reid Intl
Tue 2/9
10:20 pm-10:19 am
1 stop8h 59m
Islip Long Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$378
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Las Vegas to Islip
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 Las Vegas to Islip 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 Las Vegas-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Islip, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Las Vegas-Islip, New York 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 Las Vegas-Islip, New York 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 Las Vegas to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Las Vegas with our price prediction graph.
LAS-ISP
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.
Reviews of airlines servicing Islip
Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated September 29, 2026.
Read through reviews of airlines operating flights from Las Vegas to Islip, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to Islip. 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 Islip?
Book flights to Islip if you plan to visit one of these locationsRiverhead
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Browse through other flights departing from Las Vegas. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Las Vegas to Islip
Discover the top airline that operate flights from Las Vegas to Islip. 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 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$346 | Average$512 | FlexibilityNo cancel fee | On-time63% |