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$70+ Cheap flights from Islip (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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MSY
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$159
(CheapOair)

One-way from

$70
(CheapOair)

Popular in

April

Cheapest in

September

Average price

$197
From Islip Long Island to Louisiana
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One-way flight from Islip Long Island to Louisiana
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Highest demand for flights based on searches. 8% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/17. 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.
Sun 11/162:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Thu 11/208:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/17$159
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Fri 12/52:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Mon 12/88:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Deal found 9/16$182
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Sun 10/122:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Thu 10/168:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/16$184
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 12/42:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Mon 12/88:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Deal found 9/15$187
This CheapOair deal was found by Cheapflights users on 9/17. 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.
Mon 12/82:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Thu 12/118:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/17$212
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Sun 12/212:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Thu 12/258:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/16$266
This CheapOair deal was found by Cheapflights users on 9/17. 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.
Mon 9/292:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Thu 10/28:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/17$273
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Sun 12/142:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Sat 12/208:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/16$287
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Fri 12/52:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Sun 12/78:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/16$290
This CheapOair deal was found by Cheapflights users on 9/17. 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.
Thu 12/42:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Sun 12/78:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Deal found 9/17$293
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Fri 11/282:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Fri 12/58:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Deal found 9/16$313
This United deal was found by Cheapflights users on 9/16. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:33 pmISP - BTR
2 stops27h 50mMultiple Airlines
Sat 10/44:05 pmBTR - ISP
2 stops17h 53mMultiple Airlines
Deal found 9/16$865

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 September 17, 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

Fri 1/23

2:01 pm-5:52 pm

1 stop4h 51m

New Orleans Louis Armstrong

Mon 1/26

8:05 am-1:21 pm

1 stop4h 16m

$149

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Fri 12/5

2:25 pm-6:10 pm

1 stop4h 45m

New Orleans Louis Armstrong

Mon 12/8

8:30 am-1:45 pm

1 stop4h 15m

$182

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Thu 12/4

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Mon 12/8

8:30 am-1:45 pm

1 stop4h 15m

$187

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Sun 12/21

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Thu 12/25

8:30 am-1:39 pm

1 stop4h 09m

$266

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Fri 1/23

2:01 pm-10:05 pm

2 stops9h 04m

New Orleans Louis Armstrong

Mon 1/26

8:05 am-1:21 pm

1 stop4h 16m

$275

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Sun 12/14

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Sat 12/20

8:30 am-1:39 pm

1 stop4h 09m

$287

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Thu 1/22

11:45 am-9:54 pm

2 stops11h 09m

New Orleans Louis Armstrong

Sun 1/25

4:49 pm-10:40 am

1 stop16h 51m

$296

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Sun 11/9

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Thu 11/13

8:30 am-1:39 pm

1 stop4h 09m

$300

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Thu 12/4

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Sun 12/7

8:30 am-1:39 pm

1 stop4h 09m

$306

IslipNew Orleans

ISP - MSY

ISPMSY

Islip Long Island

Sun 11/23

2:19 pm-6:11 pm

1 stop4h 52m

New Orleans Louis Armstrong

Fri 11/28

8:30 am-1:45 pm

1 stop4h 15m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 22 results
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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 to Louisiana?

Currently, August is the cheapest month in which you can book a flight from Islip to Louisiana (average of $256). Flying from Islip 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 September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip 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 September 17, 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
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Breeze Airways
8.0
Very good
207 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 to Louisiana?

    There are many flights that can get you from Islip to Louisiana in 4h 51m. Fly via Breeze Airways to get the fastest option. Airlines will cover a distance of 1217 mi.

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

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

    Currently, August is the cheapest month in which you can book a flight from Islip to Louisiana (average of $256). Flying from Islip 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

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Alternative routes for Islip to Louisiana

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$175Average$383FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$357Average$586FlexibilityNo cancel feeOn-time63%

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