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Islip

$63+ Cheap flights from Raleigh to Islip, NY (RDU - 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ISP
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Islip Long Island are usually found in February or March, booked 10 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from Raleigh to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$112
(CheapOair)

One-way from

$63
(CheapOair)

Popular in

July

Cheapest in

February

Average price

$214

Good round-trip deal

$212 or less

Good one-way deal

$100 or less
From Raleigh-Durham to Islip Long Island
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One-way flight from Raleigh-Durham to Islip Long Island
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Highest demand for flights based on searches. 19% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Raleigh-Durham to Islip Long Island.
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Price to beat on a one-way flight from Raleigh-Durham to Islip Long Island.
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Find flight deals from Raleigh to Islip

Cheapest flights from Raleigh to Islip
Explore the most affordable flight options available from Raleigh to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This CheapOair deal was found by Cheapflights users on 6/11. 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 9/512:13 pmRDU - ISP
Nonstop1h 32mBreeze Airways
Mon 9/82:25 pmISP - RDU
Nonstop1h 39mBreeze Airways
Deal found 6/11$112
This CheapOair deal was found by Cheapflights users on 6/12. 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 6/168:20 pmRDU - ISP
1 stop19h 21mFrontier
Wed 6/188:21 pmISP - RDU
1 stop27h 57mFrontier
Deal found 6/12$229
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:13 pmRDU - ISP
Nonstop1h 32mMultiple Airlines
Mon 11/38:48 pmISP - RDU
1 stop16h 15mMultiple Airlines
Deal found 6/11$263
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:45 pmRDU - ISP
1 stop3h 25mSouthwest
Mon 11/35:50 amISP - RDU
2 stops6h 25mSouthwest
Deal found 6/11$277

Cheapflights Fare Finder

Customize your flight search to find flights from Raleigh 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 June 12, 2025.
Use the filters below to find and compare flights from Raleigh to Islip that are best for you.

Fly from

Raleigh

Fly to

Islip

Route

Depart

Return

Price

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 9/5

12:13 pm-1:45 pm

Nonstop1h 32m

Islip Long Island

Mon 9/8

2:25 pm-4:04 pm

Nonstop1h 39m

$112

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 10/31

12:13 pm-1:45 pm

Nonstop1h 32m

Islip Long Island

Mon 11/3

8:48 pm-1:03 pm

1 stop16h 15m

$263

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 10/31

5:45 pm-9:10 pm

1 stop3h 25m

Islip Long Island

Mon 11/3

5:50 am-12:15 pm

2 stops6h 25m

$277

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 8/29

12:06 pm-4:11 pm

1 stop28h 05m

Islip Long Island

Mon 9/1

7:33 pm-11:28 pm

1 stop27h 55m

$286

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 7/4

1:46 pm-3:19 pm

Nonstop1h 33m

$63

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Wed 7/23

5:25 pm-10:55 pm

1 stop5h 30m

$154

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sun 7/27

7:32 pm-1:04 pm

1 stop17h 32m

$165

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Thu 7/24

3:26 pm-10:04 am

3 stops18h 38m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Raleigh to Islip

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

How far ahead should I book a flight from Raleigh to Islip, New York?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Islip. Price data was last updated on June 9, 2025.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Islip, New York. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Raleigh to Islip, New York (average of $108). Flying from Raleigh to Islip, New York 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.

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

Find hourly flight availability from Raleigh to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from Raleigh to Islip, New York in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated June 12, 2025.
To help decide which airline to fly from Raleigh to Islip, see what other customers have to say about Breeze Airways, Southwest and Frontier. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Overall

8.1

Entertainment

6.6

Comfort

8.2

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Overall

8.1

Entertainment

6.6

Comfort

8.2

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Overall

8.1

Entertainment

6.6

Comfort

8.2

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
6.0
Okay
3,295 reviews
Breeze Airways
8.1
Very good
178 reviews

Boarding

8.3

Overall

8.1

Entertainment

6.6

Comfort

8.2

Food

6.7

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

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

  • How popular is this Raleigh to Islip, New York flight route?

    Flights from Raleigh-Durham to Islip Long Island have been viewed 4 times in the past calendar month.

  • What are the cheapest airlines flying from Raleigh to Islip, New York round-trip?

    According to our current data, Breeze Airways ($112), Frontier ($229), and Southwest ($285) offers the cheapest pricing from Raleigh to Islip, New York. Breeze Airways is currently priced 41% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Raleigh to Islip, New York one-way?

    The cheapest airline one-way is Breeze Airways, with whom users have recently found tickets for as low as $63. However, be on the lookout for offers from Southwest and Frontier, as they are both options that can get you from Raleigh to Islip, New York for a low price.

  • What are the cheapest flights from Raleigh to Islip, New York?

    Looking for the cheapest flight from Raleigh to Islip, New York? While on average our users pay $253, our data indicates the cheapest price to be $100. The most popular route (Raleigh-Durham - Islip Long Island), is priced around $112.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Raleigh 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 Raleigh to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Raleigh to Islip, New York (average of $108). Flying from Raleigh to Islip, New York 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 Raleigh?

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

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Alternative routes for Raleigh to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Raleigh to Islip

Discover the top 3 airlines that operate flights from Raleigh 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$194FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$96Average$166FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$248Average$349FlexibilityNo cancel feeOn-time63%

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