HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisiana

$70+ Cheap flights from Islip, NY (ISP) to Louisiana

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MSY
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to Louisiana with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to Louisiana

Keep the following information in mind while searching for Islip to Louisiana flight deals. Data was last updated agosto 18, 2025.

Round-trip from

$142
(CheapOair)

One-way from

$70
(Breeze Airways)

Popular in

April

Cheapest in

September

Average price

$230
From Islip Long Island to Louisiana
Search Deals
One-way flight from Islip Long Island to Louisiana
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Islip to Louisiana

Cheapest flights from Islip to Louisiana
Explore the most affordable flight options available from Islip to Louisiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 18, 2025.

This CheapOair deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/42:19 pmISP - MSY
1 stop4h 52mBreeze Airways
dom. 9/78:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 8/17$142
This CheapOair deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/32:25 pmISP - MSY
1 stop4h 45mBreeze Airways
vie. 11/78:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Deal found 8/17$157
This CheapOair deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/32:25 pmISP - MSY
1 stop4h 45mBreeze Airways
jue. 11/68:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 8/17$159
This CheapOair deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:37 pmISP - MSY
1 stop23h 20mFrontier
lun. 11/175:52 pmMSY - ISP
1 stop22h 50mFrontier
Deal found 8/16$185
This CheapOair deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/102:25 pmISP - MSY
1 stop4h 45mBreeze Airways
jue. 11/138:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 8/16$191
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/125:05 pmISP - MSY
2 stops30h 38mMultiple Airlines
vie. 9/267:37 pmMSY - ISP
1 stop14h 18mMultiple Airlines
Deal found 8/16$198
This CheapOair deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/52:25 pmISP - MSY
1 stop4h 45mBreeze Airways
lun. 12/88:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Deal found 8/16$209
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/26:05 amISP - MSY
1 stop17h 23mMultiple Airlines
sáb. 9/62:38 pmMSY - ISP
1 stop19h 12mMultiple Airlines
Deal found 8/18$236
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/174:58 pmISP - MSY
1 stop6h 39mMultiple Airlines
lun. 10/209:42 pmMSY - ISP
1 stop22h 00mMultiple Airlines
Deal found 8/18$254
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/195:05 pmISP - MSY
1 stop6h 50mMultiple Airlines
mar. 9/238:19 pmMSY - ISP
2 stops37h 36mMultiple Airlines
Deal found 8/17$270

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Louisiana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
Use the filters below to find and compare flights from Islip to Louisiana that are best for you.

Fly from

Islip

Fly to

Louisiana

Route

Depart

Return

Price

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

jue. 9/4

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

dom. 9/7

8:30 am-1:39 pm

1 stop4h 09m

$142

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

lun. 11/3

2:25 pm-6:10 pm

1 stop4h 45m

New Orleans Louis Armstrong

vie. 11/7

8:30 am-1:45 pm

1 stop4h 15m

$157

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

lun. 11/3

2:25 pm-6:10 pm

1 stop4h 45m

New Orleans Louis Armstrong

jue. 11/6

8:30 am-1:39 pm

1 stop4h 09m

$159

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

jue. 11/13

6:37 pm-4:57 pm

1 stop23h 20m

New Orleans Louis Armstrong

lun. 11/17

5:52 pm-5:42 pm

1 stop22h 50m

$185

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

lun. 11/10

2:25 pm-6:10 pm

1 stop4h 45m

New Orleans Louis Armstrong

jue. 11/13

8:30 am-1:39 pm

1 stop4h 09m

$191

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

vie. 9/12

5:05 pm-10:43 pm

2 stops30h 38m

New Orleans Louis Armstrong

vie. 9/26

7:37 pm-10:55 am

1 stop14h 18m

$198

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

jue. 10/30

6:37 pm-5:42 pm

1 stop24h 05m

New Orleans Louis Armstrong

dom. 11/2

1:24 pm-8:42 pm

1 stop6h 18m

$198

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

vie. 12/5

2:25 pm-6:10 pm

1 stop4h 45m

New Orleans Louis Armstrong

lun. 12/8

8:30 am-1:45 pm

1 stop4h 15m

$209

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

mar. 9/2

6:05 am-10:28 pm

1 stop17h 23m

New Orleans Louis Armstrong

sáb. 9/6

2:38 pm-10:50 am

1 stop19h 12m

$236

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

dom. 9/21

2:19 pm-6:11 pm

1 stop4h 52m

$70

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 19 results
1
2

Best time to book a flight from Islip to Louisiana

Have a flexible travel schedule? Discover the best time to fly to Louisiana from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Louisiana

What is the cheapest month to book a flight from Islip, New York to Louisiana?

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Louisiana (average of $256). Flying from Islip, New York to Louisiana in April is currently the most expensive (average of $343). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ISP to LA?

Find hourly flight availability from Islip to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Louisiana as you normally would.

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisiana. Reviews last updated agosto 18, 2025.
Peruse reviews from past customers who have flown with Southwest and Breeze Airways from Islip to Louisiana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Breeze Airways
8.0
Very good
196 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Islip to Louisiana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Islip to Louisiana?

    For a flight from Islip to Louisiana, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city.

  • How long is the flight from Islip, New York to Louisiana?

    Airlines like Breeze Airways fly from Islip, New York to Louisiana in about 4h 52m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1217 mi.

  • What are the most popular routes from Islip, New York to Louisiana?

    While some choose either Islip Long Island - Alexandria or Islip Long Island - Baton Rouge Ryan, Islip Long Island - New Orleans Louis Armstrong is the most popular route from Islip, New York to Louisiana.

  • Can I find deals for flights from Islip to Louisiana that include hotel bookings?

    Yes. In addition to deals on Islip to Louisiana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Louisiana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Louisiana.

  • Can I find deals for business class flights from Islip to Louisiana?

    Yes. Cheapflights offers flight deals from Islip to Louisiana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Islip, New York to Louisiana?

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Louisiana (average of $256). Flying from Islip, New York to Louisiana in April is currently the most expensive (average of $343). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Louisiana

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to O'Hare Intl flights
Newark to Fort Lauderdale flights
Newark to Los Angeles flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Orlando flights
Newark to Miami flights
Newark to O'Hare Intl flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to Fort Lauderdale flights
Newark to Las Vegas flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Miami flights
Newark to Orlando flights
LaGuardia to Atlanta flights
Newark to San Francisco flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
John F Kennedy Intl to Denver flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Seattle flights
LaGuardia to Denver flights
Newark to Denver flights
LaGuardia to Las Vegas flights
John F Kennedy Intl to West Palm Beach flights
Newark to Sky Harbor Intl flights
Newark to Seattle flights
Newark to Atlanta flights
John F Kennedy Intl to New Orleans flights
Newark to Tampa flights
John F Kennedy Intl to Tampa flights
John F Kennedy Intl to Ontario flights
Newark to Hobby flights
LaGuardia to Nashville flights
John F Kennedy Intl to Hobby flights
John F Kennedy Intl to San Diego flights
Newark to Nashville flights
LaGuardia to Hobby flights
John F Kennedy Intl to Honolulu flights
LaGuardia to West Palm Beach flights
LaGuardia to New Orleans flights
Newark to George Bush Intcntl flights
LaGuardia to Tampa flights
John F Kennedy Intl to Midway flights

Top 2 airlines flying from Islip to Louisiana

Discover the top 2 airlines that operate flights from Islip to Louisiana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$175Average$319FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$357Average$506FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.