$48 Cheap Flights from New Orleans (MSY) to Islip (ISP)

View $48 flight on Thu, Nov 6, 2025Opens in a new window

Popular airlines from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)

Cheap Flights from New Orleans to Islip (MSY-ISP)

Prices were available within the past 7 days and start at $48 for one-way flights and $144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Thu, Nov 6 - Sun, Nov 9
MSY
New Orleans
ISP
Islip
$144 Roundtrip, found 6 days ago
$144
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Thu, Nov 6 from New Orleans to Islip, returning Sun, Nov 9, priced at $144 found 6 days ago
Frontier Airlines
Fri, Nov 7 - Sun, Nov 16
MSY
New Orleans
ISP
Islip
$154 Roundtrip, found 6 hours ago
$154
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Fri, Nov 7 from New Orleans to Islip, returning Sun, Nov 16, priced at $154 found 6 hours ago
Breeze Airways
Fri, Oct 31 - Sun, Nov 9
MSY
New Orleans
ISP
Islip
$156 Roundtrip, found 4 days ago
$156
Roundtrip
found 4 days ago
Select Breeze Airways flight, departing Fri, Oct 31 from New Orleans to Islip, returning Sun, Nov 9, priced at $156 found 4 days ago
Breeze Airways
Fri, Oct 31 - Mon, Nov 3
MSY
New Orleans
ISP
Islip
$157 Roundtrip, found 14 hours ago
$157
Roundtrip
found 14 hours ago
Select Breeze Airways flight, departing Fri, Oct 31 from New Orleans to Islip, returning Mon, Nov 3, priced at $157 found 14 hours ago
Breeze Airways
Fri, Nov 7 - Mon, Nov 10
MSY
New Orleans
ISP
Islip
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, Nov 7 from New Orleans to Islip, returning Mon, Nov 10, priced at $180 found 2 days ago
Frontier Airlines
Sun, Nov 2 - Sun, Nov 16
MSY
New Orleans
ISP
Islip
$182 Roundtrip, found 2 days ago
$182
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Nov 2 from New Orleans to Islip, returning Sun, Nov 16, priced at $182 found 2 days ago
Breeze Airways
Fri, Nov 7 - Mon, Nov 10
MSY
New Orleans
ISP
Islip
$185 Roundtrip, found 2 days ago
$185
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, Nov 7 from New Orleans to Islip, returning Mon, Nov 10, priced at $185 found 2 days ago
Breeze Airways
Fri, Nov 7 - Mon, Nov 10
MSY
New Orleans
ISP
Islip
$190 Roundtrip, found 2 days ago
$190
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Fri, Nov 7 from New Orleans to Islip, returning Mon, Nov 10, priced at $190 found 2 days ago
Southwest Airlines
Sat, Dec 13 - Sat, Jan 10
MSY
New Orleans
ISP
Islip
$264 Roundtrip, found 5 days ago
$264
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sat, Dec 13 from New Orleans to Islip, returning Sat, Jan 10, priced at $264 found 5 days ago
JetBlue Airways
Tue, Oct 7 - Mon, Oct 27
MSY
New Orleans
ISP
Islip
$374 Roundtrip, found 3 days ago
$374
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Oct 7 from New Orleans to Islip, returning Mon, Oct 27, priced at $374 found 3 days ago

Frequently asked questions

How much does a flight from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP) cost?
Secure a cheap one-way flight from $48 or cheap return flight from $144 from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)?
The cheapest month to fly from MSY to ISP is November, when demand is low. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)?
To find the cheapest airline that'll fly you from MSY to ISP, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)?
You'll have to take a flight with a layover when traveling from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from MSY to ISP?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)?
Book a flight from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Islip from Louis Armstrong New Orleans Intl. Airport (MSY)?
Board a direct flight from Louis Armstrong New Orleans Intl. Airport (MSY) to Islip and touch down at any one of these airports:

  • LaGuardia Airport (LGA)
  • John F. Kennedy Intl. Airport (JFK)
  • Tweed - New Haven Regional Airport (HVN)

Is it cheaper to buy a plane ticket from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP) last-minute?
Holding off until right before your break to book your flight from MSY to ISP often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open to maximize your chances of landing a bargain.
Is it cheaper to book a MSY to ISP flight and hotel package?
Compared with arranging flights and hotels separately, booking a MSY to ISP flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Louis Armstrong New Orleans Intl. Airport (MSY) to MacArthur Airport (ISP)?
Usually, it's possible to cancel or reschedule your MSY to ISP flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Louis Armstrong New Orleans Intl.
Destination airport
MacArthur
Airlines serving
Breeze Airways, Frontier Airlines, JetBlue Airways, Southwest Airlines
Roundtrip price
$143
Distance
1217 mi
Average flight time
4 hours 9 mins

Book with confidence

Book with confidence

New Orleans to Islip Flights

The cheapest times to fly from New Orleans to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from New Orleans to Islip are during the month of November. You can find some of the cheapest flights from New Orleans to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New Orleans to Islip

Sunday is one of the best days to book for cheap flights from New Orleans to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from New Orleans to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from New Orleans to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $48 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap New Orleans to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your New Orleans to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

New Orleans to Islip Flights

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*Available to One Key members.