Cheap Flights from Islip (ISP) to Las Vegas (LASA)

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Find the cheapest month to fly from Islip to Las Vegas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Islip to Las Vegas flights are currently cheapest in June.

Alternative Islip to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Islip to Las Vegas? You could fly into the following airports instead.

Islip to Las Vegas: Flight information

The things to know before you go.
Cheapest flight found$135
Cheapest month to flyJune

Finding cheap flights from Islip to Las Vegas: Frequently asked questions

There are 4 airports in Las Vegas: Las Vegas North Air Terminal, Las Vegas Harry Reid International, Las Vegas Henderson Sky Harbor, and Boulder City.
The best price we found for a round-trip flight from Islip to Las Vegas is $259. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Islip to Las Vegas. But we found flights with one or more stops from $259.
There are no flights flying from Islip to Las Vegas, as of May 2025.
The cheapest month to fly from Islip to Las Vegas is usually May 2025.
If you're flying from Islip Airport, the cheapest airport near Las Vegas is Las Vegas Harry Reid International – which is 2.7 miles away from the center of Las Vegas. We've found flights to this airport from $259.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Islip Airport to Las Vegas on Saturday, June 7, 2025.
No airlines currently offer direct flights between Islip Airport and Las Vegas. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 69°F. July is typically the warmest month in Las Vegas, when it usually averages around 99°F. You can expect the least rain in June. The coldest month is December, with temperatures averaging 32°F. The rainiest month is February.
Currently, Frontier Airlines offers the cheapest flight tickets to Las Vegas.

Flying from Long Island MacArthur Airport (ISP) to Las Vegas: what you need to know

  • The timezone in Las Vegas is UTC-7. The city is three hours behind Islip, where Long Island MacArthur Airport is located.

  • Leave enough time to make your ISP to Las Vegas flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • If you're jetting off during a major holiday or another peak period, allow extra time. A good rule is two hours before domestic flights and up to four hours before international departures. Queues at security and check-in will be longer.

  • The journey from central Islip to ISP takes around 1 hour 10 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 7 miles in 15 minutes or so, depending on traffic.

  • Planning to catch an early flight from Long Island MacArthur Airport to Las Vegas? Avoid the hassle of rushing to the airport (and catch some extra z's) by choosing one of these stays close to ISP:

  • When it comes to Long Island MacArthur Airport's on-time performance, 77.45% of flights stick to their scheduled arrival time.

  • The address for ISP is 100 Arrivals Avenue.

How to find the cheapest flights from Long Island MacArthur Airport (ISP) to Las Vegas

  • $135 is currently the best price for a one-way Long Island MacArthur Airport to Las Vegas flight. Return plane tickets start from $259. These fares can change depending on availability.

  • Booking ahead of time is often the key to scoring a cheap flight from ISP to Las Vegas. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely spend.

  • The 'Whole month' search tool will show you the cheapest tickets from Long Island MacArthur Airport to Las Vegas throughout the month. It's an easy way to find a bargain if your travel dates aren't set in stone.

  • Picking up a cheap flight from ISP to Las Vegas is a breeze with Price Alerts. All you need to do is create one of these automatic notifications and we'll get in touch as soon as a new discount appears.

  • Tailor your flights with filters. Pick your arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Long Island MacArthur Airport to Las Vegas.

Airports in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

  • The distance from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas is roughly 12 miles. It'll take you around 15 minutes to reach the center driving.

  • Getting to the center on public transport takes around 1 hour.

  • The last thing you want is a long journey to your hotel if you're getting in late on a flight from Long Island MacArthur Airport to Las Vegas. Stay at one of these accommodation options near LAS instead:

  • Begin your adventure by picking up a Harry Reid Airport (formerly McCarran Airport) rental car. Grab your wheels from Dollar, Thrifty or Alamo and explore beyond Las Vegas's main sights.

  • Booking your ride from Harry Reid Airport (formerly McCarran Airport) around one week before your flight from ISP to Las Vegas can help you get the best possible rate.

  • LAS is located at 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • Carefully consider your travel dates before securing your flight from Long Island MacArthur Airport to Las Vegas. The city comes alive during peak season, but hotel prices are typically higher and top attractions can get crowded. Plan your trip to Las Vegas in low season for a quieter vibe.

  • Book a Long Island MacArthur Airport to Las Vegas plane ticket with a departure in July if you want to visit the city during its warmest month. Expect temperatures to range from 73ºF to 108ºF.

  • January has average temperatures of between 30ºF and 55ºF. Look for a cheap ticket from ISP to Las Vegas around that time if you like cooler conditions.

More about Las Vegas

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Las Vegas right here. Check out these options as soon as you've booked your flight from Long Island MacArthur Airport to Las Vegas:

  • There are so many things to explore in this city it can be tricky to work out where to begin. Fountains of Bellagio, Las Vegas Strip and Fremont Street Experience are popular attractions which should be on any good Las Vegas itinerary.

Explore more of United States

  • Las Vegas has plenty to offer, but there are so many other parts of United States waiting to be discovered. About 230 miles south-west of Las Vegas, a trip to Los Angeles will keep you on the go. Start with leading attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Phoenix is another standout destination in United States and is around 260 miles south-east of Las Vegas. No journey is complete without dropping by Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.