LAS - ISP

$124 Find Cheap Flights from Las Vegas to Islip - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Las Vegas to Islip departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$250
Frontier
Wed 9/2Sat 9/5
LAS - ISP • 1 stop
Cheapest one-way
$124
Frontier
Tue 10/20
LAS - ISP • 1 stop
Top airlines
Frontier
Cheapest • from $250 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Las Vegas and Islip. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Orlando (MCO)
Cheapest • Avg $312 (round-trip)
Baltimore (BWI)
Shortest trip • 7h 09m (one-way)
Insights
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Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to Islip

Wed, Sep 2 - Sat, Sep 5
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$250Frontier
Tue, Sep 1 - Mon, Sep 7
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
7:09 pm - 9:44 pm
ISP
-
LAS
29h 35m
1 stop
$250Frontier
Wed, Aug 26 - Sat, Aug 29
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$250Frontier
Sat, Aug 22 - Sun, Aug 30
Frontier Logo
11:34 am - 9:53 am
LAS
-
ISP
19h 19m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$277Frontier
Sat, Aug 22 - Sun, Aug 30
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
7:09 pm - 11:00 pm
ISP
-
LAS
30h 51m
2 stops
$277Frontier
Sat, Aug 22 - Sun, Aug 30
Frontier Logo
11:34 am - 9:53 am
LAS
-
ISP
19h 19m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$284Frontier
Tue, Sep 1 - Sat, Sep 5
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$287Frontier
Wed, Sep 2 - Sat, Sep 5
Frontier Logo
9:41 pm - 9:53 am
LAS
-
ISP
9h 12m
1 stop
Frontier Logo
10:57 am - 9:44 pm
ISP
-
LAS
13h 47m
1 stop
$294Frontier
Tue, Sep 1 - Mon, Sep 7
Southwest Logo
10:00 am - 9:05 pm
LAS
-
ISP
8h 05m
2 stops
Southwest Logo
6:10 am - 2:15 pm
ISP
-
LAS
11h 05m
2 stops
$433Southwest
Fri, Aug 21 - Sun, Aug 30
Southwest Logo
9:45 am - 10:05 pm
LAS
-
ISP
9h 20m
2 stops
Southwest Logo
6:20 am - 12:50 pm
ISP
-
LAS
9h 30m
2 stops
$496Southwest
Booking Insights

KAYAK's insights & trends for Las Vegas to Islip flights

Get data-powered insights and trends into flights from Las Vegas to Islip to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Las Vegas to Islip?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Las Vegas to Islip were found on Frontier ($250) and JetBlue ($345).

Find deals

Good to know

Cheapest flight

$124
Flight from Las Vegas to Islip

When to book flights from Las Vegas to Islip

Are your dates flexible? Find out the best times to travel from Las Vegas to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Las Vegas to Islip

  • What is the cheapest flight from Las Vegas to Islip?

    In the last 5 days, the lowest price for a flight from Las Vegas to Islip was $124 for a one-way ticket and $250 for a round-trip.

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

    No

  • Which aircraft models fly most regularly from Las Vegas to Islip?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Las Vegas to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Las Vegas to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Las Vegas to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Las Vegas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Las Vegas to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Las Vegas with another airline. Booking your flights between Las Vegas and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Las Vegas to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Las Vegas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Las Vegas to Islip

 
See real verified KAYAK customer reviews for airlines flying from Las Vegas to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Las Vegas to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4222 reviews
8.6Crew
7.0Food
7.5Entertainment
8.0Comfort
8.1Boarding
Airline reviews

It was good. Last flight was delayed but I always say that is in God's plan

8.0 ExcellentCarla, Jul 2026
LAS - RDU
Read more Southwest reviews

It was good. Last flight was delayed but I always say that is in God's plan

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

The seat was not comfortable. 1D. My back was sore all night and the next day.

The new boarding process was easy and straightforward. Very pleasant.

It was as expected and I was grateful for the wheel chair help and ease of use.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

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

Information on your arrival and departure airports

Las Vegas (LAS)
Islip (ISP)