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Islip

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

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.
MSY — ISP
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Louisiana to Islip

Keep the following information in mind while searching for Louisiana to Islip flight deals. Data was last updated September 17, 2025.

Round-trip from

$140
(CheapOair)

One-way from

$70
(CheapOair)

Popular in

July

Cheapest in

September

Average price

$161
From Louisiana to Islip Long Island
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One-way flight from Louisiana to Islip Long Island
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Highest demand for flights based on searches. 12% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 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 Louisiana to Islip

Cheapest flights from Louisiana to Islip
Explore the most affordable flight options available from Louisiana to Islip. 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 9/14. 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 11/148:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Mon 11/172:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Deal found 9/14$148
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.
Fri 12/58:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Sun 12/72:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/15$154
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.
Fri 11/148:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Sun 11/162:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/15$165
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 11/68:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Sun 11/92:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/17$171
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Sun 11/92:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/15$172
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 12/118:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Sun 12/142:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/17$174
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 10/308:30 amMSY - ISP
1 stop4h 09mBreeze Airways
Sun 11/22:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/15$182
This CheapOair deal was found by Cheapflights users on 9/14. 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 12/58:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Mon 12/82:25 pmISP - MSY
1 stop4h 45mBreeze Airways
Deal found 9/14$183
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.
Fri 12/128:30 amMSY - ISP
1 stop4h 15mBreeze Airways
Sun 12/142:19 pmISP - MSY
1 stop4h 52mBreeze Airways
Deal found 9/15$185

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisiana to Islip 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 Louisiana to Islip that are best for you.

Fly from

Louisiana

Fly to

Islip

Route

Depart

Return

Price

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Fri 1/23

8:05 am-1:21 pm

1 stop4h 16m

Islip Long Island

Mon 1/26

2:01 pm-5:52 pm

1 stop4h 51m

$140

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Fri 11/14

8:30 am-1:45 pm

1 stop4h 15m

Islip Long Island

Mon 11/17

2:25 pm-6:10 pm

1 stop4h 45m

$148

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Fri 11/14

8:30 am-1:45 pm

1 stop4h 15m

Islip Long Island

Sun 11/16

2:19 pm-6:11 pm

1 stop4h 52m

$166

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Thu 11/6

8:30 am-1:39 pm

1 stop4h 09m

Islip Long Island

Sun 11/9

2:19 pm-6:11 pm

1 stop4h 52m

$171

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Fri 11/7

8:30 am-1:45 pm

1 stop4h 15m

Islip Long Island

Sun 11/9

2:19 pm-6:11 pm

1 stop4h 52m

$172

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Thu 12/4

8:30 am-1:39 pm

1 stop4h 09m

Islip Long Island

Sun 12/7

2:19 pm-6:11 pm

1 stop4h 52m

$172

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Thu 10/30

8:30 am-1:39 pm

1 stop4h 09m

Islip Long Island

Sun 11/2

2:19 pm-6:11 pm

1 stop4h 52m

$182

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Fri 12/5

8:30 am-1:45 pm

1 stop4h 15m

Islip Long Island

Mon 12/8

2:25 pm-6:10 pm

1 stop4h 45m

$183

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Mon 1/5

8:30 am-1:45 pm

1 stop4h 15m

Islip Long Island

Mon 1/12

2:01 pm-5:52 pm

1 stop4h 51m

$184

New OrleansIslip

MSY - ISP

MSYISP

New Orleans Louis Armstrong

Thu 12/25

8:30 am-1:39 pm

1 stop4h 09m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 18 results
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Best time to book a flight from Louisiana to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Louisiana 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 Louisiana to Islip

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

Currently, January is the cheapest month in which you can book a flight from Louisiana to Islip (average of $108). Flying from Louisiana to Islip in November is currently the most expensive (average of $213). 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.

Related info for your journey

Find useful and relevant information for your journey from Louisiana to Islip. 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 into for flights to Islip from Louisiana?

    Islip Long Island (ISP) is the airport you will fly into if you book a flight from Louisiana to Islip. It is only a 7.2 mi journey from Long Island (ISP) to Islip’s city center.

  • How long is the flight from Louisiana to Islip?

    A quick flight from Louisiana to Islip can take about 4h 16m. Breeze Airways provides one of the quickest options available for as low as $140. Airlines will cover a distance of 1217 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisiana to Islip 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 Louisiana to Islip?

    Currently, January is the cheapest month in which you can book a flight from Louisiana to Islip (average of $108). Flying from Louisiana to Islip in November is currently the most expensive (average of $213). 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

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for Louisiana to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Louisiana to Islip

Discover the top 2 airlines that operate flights from Louisiana to Islip. 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$111Average$315FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$216Average$442FlexibilityNo cancel feeOn-time63%

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