$58 Cheap Flights to Islip
One-way
Departing from
United States
Going to
Islip, United States
Islip (ISP)
United States • May, 2026
98% AI deal score
$845 $118
Islip (ISP)
United States • May, 2026
93% AI deal score
$423 $60
Islip (ISP)
United States • May, 2026
93% AI deal score
$423 $60
Islip (ISP)
United States • February, 2026
91% AI deal score
$545 $58
Top Cheap Flight Deals from United States to Islip
Recent round-trip flight deals to Islip
Sat, Jan 17 - Sun, Jan 18
Cheapest
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
Sat, Jan 17 - Sun, Jan 18
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
Fri, Jan 16 - Sun, Jan 18
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
Thu, Jan 15 - Sat, Jan 17
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
Sat, Jan 17 - Mon, Jan 19
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
Fri, Jan 16 - Sun, Jan 18
Tampa (TPA) - Islip (ISP)
Frontier Airlines airlines • Direct
Islip (ISP) - Tampa (TPA)
Frontier Airlines airlines • Direct
$255
$56
-$199
78%
The cheapest time to fly to Islip
Ready to jet to Islip on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Facts About Flights from United States to Islip
To help you plan your journey, here are some quick Islip flight facts and tips.
Islip city airports
Long Island MacArthur Airport (ISP) is the primary airport serving Islip and the broader Long Island region. Conveniently located in Ronkonkoma, it offers a more relaxed and accessible alternative to the busier New York City area airports. ISP provides a variety of domestic flights, with airlines such as Southwest, Frontier, and Breeze Airways operating regularly. Passengers appreciate its shorter security lines, easier navigation, and generally less crowded environment, making for a smoother travel experience. The airport is easily accessible by car, with ample parking available, and is also served by the Long Island Rail Road (LIRR), connecting travelers to New York City and other parts of Long Island. While ISP may not offer as many international flights as JFK or Newark, it remains a popular choice for those seeking a convenient and stress-free travel option within the region.
Pro tip: search “Islip (Any)” to see fares to all Islip airports – sometimes one is cheaper than the others on your dates.
Insights for flights to Islip
Cheapest airport
Long Island MacArthur Airport (ISP)
Looking for a low-key landing spot? Long Island MacArthur Airport (ISP) in Islip is your ticket! This smaller airport offers a relaxed alternative to the NYC airport craziness and is super convenient for exploring Long Island's beaches and vineyards.
Nonstop vs. 1-stop
20+ cities
Long Island MacArthur Airport (ISP) in Islip isn't a major hub, but it offers convenient access to Long Island and connects to over 20 cities; some popular routes include flights to Florida and other East Coast destinations.
Number of airlines
10+ airlines
There are more than 10 airlines that operate flights in and out of Islip, with the most popular ones being Southwest, Frontier, and Breeze Airways.
ISP Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
ISP airport insights
Best days to catch a deal
Tue, Thur
Based on the data, Wednesday and Monday are the days when the cheapest deals are most frequently found for flights from Long Island MacArthur Airport. Tuesday has the highest count of deals, so it may also be a good day to check for deals.
Avg. deal survival time
9.2 hours
Deals from Long Island MacArthur Airport typically last around 9.2 hours. Because these deals disappear quickly, it is important to book them as soon as possible.
Rare deal frequency
17 deals
We uncovered 17 rare deals for Long Island MacArthur Airport in the last month by monitoring a variety of sources. These rare deals had an AI Deal Score of 90+ and typically include mistake fares, special promotions, or ultra-discounts.
Average price drop
-74%
The average price drop for flights from Long Island MacArthur Airport is a significant 74.5%. This means travelers can potentially save a substantial amount on airfare when flying from this airport.
Next 4 weeks: deal forecast
Long Island MacArthur Airport Next Month Flight Forecast
Based on current trends, flight prices for Long Island MacArthur Airport next month are expected to remain relatively stable. There are no significant price drops or increases anticipated at this time.
Top 5 biggest price drops (last 3 months)
Found on January 1
Edinburgh - ISP
$7,750 → $476
94%
Found on January 4
Amsterdam - ISP
$6,800 → $601
91%
Found on December 28
Inverness - ISP
$3,100 → $327
89%
Found on December 28
Innsbruck - ISP
$3,900 → $424
89%
Found on January 3
Salzburg - ISP
$3,575 → $388
89%
Check these nearby airports too
Looking for more options? These airports near ISP sometimes drop rare deals too:
Bradley International (BDL)
~4 rare deals/month
Westchester County (HPN)
~10 rare deals/month
Long Island MacArthur (ISP)
~8 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially BDL and HPN for long-haul deal surprises.
When Is the Best Time to Fly from United States to Islip
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to Islip:
Cheapest month
January
Cheapest month
January emerges as the champion for snagging the most affordable flights to Islip! Imagine starting your year with a budget-friendly trip to this charming locale. With fewer tourists and cozy vibes, January offers a unique and economical travel experience.
Best day to book
Sunday
Best day to book
Sunday is the golden day to book your flights to Islip! It turns out planning your trip on a Sunday can lead to significant savings. Kick back, relax, and let those Sunday vibes guide you to the best flight deals!
Cheapest days to fly
Tuesday
Cheapest days to fly
Tuesday is the secret weapon for finding cheap flights to Islip. Flying on a Tuesday can save you some serious cash. It's the perfect way to make your travel budget stretch further, leaving you with more to spend on enjoying Islip's attractions!
Advance booking sweet spot
2 months
Advance booking sweet spot
Booking about 2 months in advance is your ticket to scoring the best deals on flights to Islip. This sweet spot allows you to take advantage of lower prices before the last-minute rush. Plan ahead and watch those savings roll in, making your trip even sweeter!
Seasonal considerations
Islip Airports & Ground Transportation
One big question for travelers is which Islip airport to fly into. Here’s a quick guide to Islip’s airports and how to get to the city from each:
Long Island MacArthur Airport (ISP)
Long Island MacArthur Airport (ISP) is your gateway to exploring Long Island and beyond! Conveniently located in Islip, it offers a more relaxed and less crowded alternative to the major NYC airports. While smaller, ISP provides essential amenities like free Wi-Fi, charging stations, and a selection of shops and restaurants to keep you comfortable while waiting for your flight. Getting to and from the airport is a breeze with various options, including taxis, ride-sharing services, and the Long Island Rail Road (LIRR) connecting you to New York City and other Long Island destinations. Consider this airport as a stress-free starting point for your Long Island adventures!
Tip: Pack a snack, as the food options are limited after security.
LaGuardia Airport (LGA)
While not directly in Islip, LaGuardia Airport (LGA) is an option, especially if you find a great deal! LGA has undergone significant renovations in recent years, resulting in improved terminals, dining options, and amenities. From LGA, you can expect a solid hour and half travel time to Islip by car depending on traffic. Public transportation options involve a combination of buses and trains. Consider the cost and time of ground transportation when making your flight decision!
What to Do in Islip
Islip isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in Islip, organized by interest:
Sightseeing & landmarks
Islip boasts several landmarks perfect for history buffs and casual sightseers alike! From the historic Sagtikos Manor, offering a glimpse into the past, to the natural beauty of Bayard Cutting Arboretum, there's something to capture everyone's interest.
Arts & culture
Immerse yourself in Islip's vibrant arts scene! Catch a show at the BayWay Arts Center or explore local art galleries showcasing the talents of Long Island artists. You'll find plenty to inspire and entertain you.
Food & nightlife
Get ready for a treat because Islip has something for everyone, from cozy pubs to elegant dining. Whether you're craving fresh seafood, classic American fare, or international cuisine, Islip's restaurants deliver. After dinner, check out a local bar for live music or a relaxing drink.
Shopping & fashion
Shop 'til you drop in Islip's diverse retail scene! Discover unique boutiques, antique shops, and larger shopping centers offering everything from high-end fashion to everyday essentials. You're sure to find that perfect souvenir or a stylish addition to your wardrobe.
Nearby getaways
Islip is the perfect starting point for exploring Long Island! Take a short trip to the Hamptons for beautiful beaches and upscale dining, or head west to explore the vibrant culture of New York City. The possibilities for adventure are endless!
Events in Islip This Month
asce lib jan. 2026 tech lecture-geology of nyc and potential for geothermal
Learn about geothermal energy applications in New York City at this presentation. Attendees can earn 1 PDH upon completion of the course.
barre & beer @ sand city south
Join us for Barre & Beer, a unique workout experience that combines barre exercises with craft beverages, on Sunday, January 11th at Sand City Brewery.
Islip Weather
Weather in Islip
Sat, Jan 3
10%
-1° -5°
10%
Sun, Jan 4
Frequently Asked Questions About Flights to Islip
Pro Tips for Finding Cheap Flights to Islip
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on Islip flights:
Be a Flexible Flyer: Keep your travel dates flexible! Sometimes flying on a Tuesday or Wednesday can slash those prices compared to weekends.
Embrace the Red-Eye (If You Dare!): Consider those less desirable flight times, like early mornings or late nights. Red-eye flights often come with a sweeter price tag.
