LAS - ISP

$105 Find Cheap Flights from Las Vegas to Islip

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 7/22. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Islip, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$230
Frontier
Wed 9/2Mon 9/7
LAS - ISP • 1 stop
Cheapest one-way
$105
Frontier
Wed 7/22
LAS - ISP • 1 stop
Top airlines
Cheapest • from $230 (round-trip)
Best reviews • 7.9 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
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $312 (round-trip)
Shortest trip • 7h 26m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Flight Deals
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 - Mon, Sep 7
Frontier Logo
8:17 pm - 10:03 am
LAS
-
ISP
10h 46m
1 stop
Frontier Logo
10:48 am - 8:45 pm
ISP
-
LAS
12h 57m
1 stop
$230Frontier
Wed, Jul 22 - Wed, Jul 29
Frontier Logo
9:42 pm - 10:03 am
LAS
-
ISP
9h 21m
1 stop
Frontier Logo
10:48 am - 8:10 pm
ISP
-
LAS
12h 22m
1 stop
$250Frontier
Wed, Jul 8 - Sun, Jul 12
Frontier Logo
9:42 pm - 10:03 am
LAS
-
ISP
9h 21m
1 stop
Frontier Logo
10:48 am - 8:10 pm
ISP
-
LAS
12h 22m
1 stop
$270Frontier
Thu, May 21 - Mon, May 25
Frontier Logo
10:02 pm - 10:05 am
LAS
-
ISP
9h 03m
1 stop
Frontier Logo
6:43 pm - 12:53 am
ISP
-
LAS
9h 10m
1 stop
$300Frontier
Fri, May 22 - Tue, May 26
Frontier Logo
1:11 pm - 10:05 am
LAS
-
ISP
17h 54m
2 stops
Frontier Logo
6:02 pm - 11:14 am
ISP
-
LAS
20h 12m
1 stop
$368Frontier
Tue, May 19 - Sat, May 23
Frontier Logo
8:00 am - 10:05 am
LAS
-
ISP
23h 05m
1 stop
Frontier Logo
6:43 pm - 12:53 am
ISP
-
LAS
9h 10m
1 stop
$375Frontier
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
8:00 am - 10:05 am
LAS
-
ISP
23h 05m
1 stop
Multiple Airlines Logo
7:18 pm - 8:39 pm
ISP
-
LAS
28h 21m
2 stops
$384Multiple Airlines
Sun, Jun 7 - Mon, Jun 22
Frontier Logo
8:00 am - 10:05 am
LAS
-
ISP
23h 05m
1 stop
Frontier Logo
9:52 pm - 8:46 pm
ISP
-
LAS
25h 54m
1 stop
$395Frontier
Tue, Jun 2 - Tue, Jun 9
Southwest Logo
10:15 pm - 1:50 pm
LAS
-
ISP
12h 35m
1 stop
Southwest Logo
12:25 pm - 5:45 pm
ISP
-
LAS
8h 20m
1 stop
$406Southwest
Fri, May 22 - Tue, May 26
Frontier Logo
10:02 pm - 10:05 am
LAS
-
ISP
9h 03m
1 stop
Frontier Logo
6:02 pm - 11:14 am
ISP
-
LAS
20h 12m
1 stop
$411Frontier
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Las Vegas to Islip were found on Frontier ($230) and Southwest ($406).

Good to know

Cheapest flight$105
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 3 days, the lowest price for a flight from Las Vegas to Islip was $105 for a one-way ticket and $230 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.
7.9
SouthwestOverall score based on 4305 reviews
8.1Boarding
8.6Crew
7.5Entertainment
7.0Food
8.0Comfort
Airline reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

2.0 MediocreAnonymous, May 2026
SEA - SMF
Read more Southwest reviews

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

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

Information on your arrival and departure airports