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$51+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ISP
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Find cheap flights from Raleigh to Islip with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Raleigh-Durham to Islip Long Island are usually found in February or March, booked 21 days in advance, depart on a Wednesday or Friday and return on a Thursday

Cheap 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 January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/23. 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.
Sat 1/249:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Fri 1/302:01 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/23$107
This CheapOair deal was found by Cheapflights users on 1/26. 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 2/611:59 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Mon 2/92:31 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/26$113
This Mytrip deal was found by Cheapflights users on 1/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1311:59 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Mon 3/162:31 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/26$115
This CheapOair deal was found by Cheapflights users on 1/25. 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.
Wed 2/49:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Wed 2/1111:50 am
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$118
This CheapOair deal was found by Cheapflights users on 1/25. 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 2/1311:59 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Fri 2/202:31 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$122
This CheapOair deal was found by Cheapflights users on 1/25. 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 3/211:59 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Sat 3/2111:50 am
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$127
This CheapOair deal was found by Cheapflights users on 1/25. 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.
Wed 1/289:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Sat 1/3111:50 am
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$128
This CheapOair deal was found by Cheapflights users on 1/25. 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.
Sat 3/149:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Fri 3/202:31 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$132
This CheapOair deal was found by Cheapflights users on 1/23. 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.
Sat 1/319:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Mon 2/22:01 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/23$133
This CheapOair deal was found by Cheapflights users on 1/25. 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 3/611:59 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Mon 3/92:31 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$137
This CheapOair deal was found by Cheapflights users on 1/24. 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.
Sat 1/249:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Mon 1/262:01 pm
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/24$138
This CheapOair deal was found by Cheapflights users on 1/25. 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.
Wed 2/119:38 am
RDU
-
ISP
Nonstop1h 32m
Breeze Airways
Wed 2/1811:50 am
ISP
-
RDU
Nonstop1h 43m
Breeze Airways
Deal found 1/25$142

Find 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 January 26, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$113
(CheapOair)

One-way from

$51
(CheapOair)

Popular in

November

Cheapest in

February

Average price

$138

Good round-trip deal

$118 or less

Good one-way deal

$54 or less
Provider with most accurate pricing for Raleigh-Durham-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Islip Long Island flights.
Search Deals
From Raleigh-Durham to Islip Long Island
Search Deals
One-way flight from Raleigh-Durham to Islip Long Island
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Raleigh-Durham to Islip Long Island.
Search Deals
Price to beat on a one-way flight from Raleigh-Durham to Islip Long Island.
Search Deals

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 January 26, 2026.
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 2/6

11:59 am-1:31 pm

Nonstop1h 32m

Islip Long Island

Mon 2/9

2:31 pm-4:14 pm

Nonstop1h 43m

$113

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 3/13

11:59 am-1:31 pm

Nonstop1h 32m

Islip Long Island

Mon 3/16

2:31 pm-4:14 pm

Nonstop1h 43m

$115

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 2/27

11:59 am-1:31 pm

Nonstop1h 32m

Islip Long Island

Sat 2/28

11:50 am-1:33 pm

Nonstop1h 43m

$118

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 2/14

9:38 am-11:10 am

Nonstop1h 32m

Islip Long Island

Sat 2/21

11:50 am-1:33 pm

Nonstop1h 43m

$122

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 5/16

9:45 am-11:17 am

Nonstop1h 32m

Islip Long Island

Sat 6/6

11:57 am-1:35 pm

Nonstop1h 38m

$127

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 3/13

11:59 am-1:31 pm

Nonstop1h 32m

Islip Long Island

Sat 3/14

11:50 am-1:33 pm

Nonstop1h 43m

$127

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 3/14

9:38 am-11:10 am

Nonstop1h 32m

Islip Long Island

Fri 3/20

2:31 pm-4:14 pm

Nonstop1h 43m

$132

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 3/14

9:38 am-11:10 am

Nonstop1h 32m

Islip Long Island

Sat 3/21

11:50 am-1:33 pm

Nonstop1h 43m

$132

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Tue 6/9

3:15 pm-4:47 pm

Nonstop1h 32m

Islip Long Island

Sat 6/13

11:57 am-1:35 pm

Nonstop1h 38m

$132

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 3/6

11:59 am-1:31 pm

Nonstop1h 32m

Islip Long Island

Mon 3/9

2:31 pm-4:14 pm

Nonstop1h 43m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 18 results
1
2

Compare providers for flights from Raleigh to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Raleigh to Islip in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Raleigh-Islip, New York flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Raleigh-Islip, New York flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Raleigh-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-Islip, New York flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Raleigh-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 23, 2026.

Booking 21 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, February is the cheapest month in which you can book a flight from Raleigh to Islip, New York (average of $42). Flying from Raleigh to Islip, New York in November is currently the most expensive (average of $81). 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 January 26, 2026.

When flying from Raleigh to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 26, 2026.
See what other customers who have flown with Breeze Airways, Southwest, and Frontier from Raleigh to Islip have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.2
Very good
263 reviews

Boarding

8.3

Overall

8.2

Entertainment

6.6

Food

6.7

Comfort

8.2

Crew

8.7

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Breeze Airways
8.2
Very good
263 reviews
Breeze Airways
8.2
Very good
263 reviews

Boarding

8.3

Overall

8.2

Entertainment

6.6

Food

6.7

Comfort

8.2

Crew

8.7

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Southwest
8.0
Very good
4,268 reviews
Breeze Airways
8.2
Very good
263 reviews

Boarding

8.3

Overall

8.2

Entertainment

6.6

Food

6.7

Comfort

8.2

Crew

8.7

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Frontier
5.7
Fair
3,057 reviews
Breeze Airways
8.2
Very good
263 reviews

Boarding

8.3

Overall

8.2

Entertainment

6.6

Food

6.7

Comfort

8.2

Crew

8.7

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.

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.

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

    Airlines like Breeze Airways fly from Raleigh to Islip, New York in about 1h 32m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 458 mi. Generally, flights for this route are nonstop.

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

    According to our current data, Frontier ($76), Breeze Airways ($78), and Southwest ($247) offers the cheapest pricing from Raleigh to Islip, New York. Frontier is currently priced 65% below the average price you’ll pay for this route.

  • 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 $94, our data indicates the cheapest price to be $48. The most popular route (Raleigh-Durham - Islip Long Island), is priced around $113.

  • 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, February is the cheapest month in which you can book a flight from Raleigh to Islip, New York (average of $42). Flying from Raleigh to Islip, New York in November is currently the most expensive (average of $81). 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?

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Alternative routes for Raleigh to Islip

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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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$159FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$78Average$184FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$247Average$356FlexibilityNo cancel feeOn-time63%

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