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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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ISP
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
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 Friday or Monday 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$112
(Priceline)

One-way from

$51
(CheapOair)

Popular in

October

Cheapest in

February

Average price

$113

Good round-trip deal

$111 or less

Good one-way deal

$59 or less
Provider with most accurate pricing for Raleigh-Durham-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Islip Long Island flights.
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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. 11% potential increase in price ($21 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 March 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 March 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1110:45 amRDU - ISP
Nonstop1h 31mBreeze Airways
Sun 4/2012:56 pmISP - RDU
Nonstop1h 38mBreeze Airways
Deal found 3/24$116
This Priceline deal was found by Cheapflights users on 3/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/129:45 amRDU - ISP
1 stop8h 30mMultiple Airlines
Sun 4/2012:56 pmISP - RDU
Nonstop1h 38mMultiple Airlines
Deal found 3/24$171
This Frontier deal was found by Cheapflights users on 3/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/210:16 pmRDU - ISP
1 stop9h 54mFrontier
Sat 4/59:04 pmISP - RDU
1 stop10h 54mFrontier
Deal found 3/23$209
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/144:35 pmRDU - ISP
1 stop6h 15mSouthwest
Wed 5/288:20 amISP - RDU
2 stops8h 15mSouthwest
Deal found 3/24$256

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 March 25, 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 4/11

10:45 am-12:16 pm

Nonstop1h 31m

Islip Long Island

Sun 4/20

12:56 pm-2:34 pm

Nonstop1h 38m

$116

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 4/12

9:45 am-6:15 pm

1 stop8h 30m

Islip Long Island

Sun 4/20

12:56 pm-2:34 pm

Nonstop1h 38m

$171

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sat 4/12

9:45 am-6:15 pm

1 stop8h 30m

Islip Long Island

Sun 4/20

9:04 pm-9:56 am

1 stop12h 52m

$211

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Wed 5/14

4:35 pm-10:50 pm

1 stop6h 15m

Islip Long Island

Wed 5/28

8:20 am-4:35 pm

2 stops8h 15m

$256

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Thu 4/10

10:45 am-12:16 pm

Nonstop1h 31m

$51

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Tue 4/1

1:37 pm-8:09 pm

1 stop6h 32m

$100

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Tue 4/22

6:30 am-12:25 pm

1 stop5h 55m

$128

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 5/30

10:17 am-1:45 pm

2 stops27h 28m

$295

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 5/2

5:20 pm-9:28 pm

1 stop4h 08m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Islip, New York flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 21, 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 March 25, 2025.

It’s optimal to fly from Raleigh to Islip, New York at noon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Raleigh to Islip, New York?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Islip. Price data was last updated on March 23, 2025.

Travelers seeking maximum savings on their Raleigh to Islip, New York flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 March 25, 2025.
To help decide which airline to fly from Raleigh to Islip, see what other customers have to say about Southwest, Breeze Airways and JetBlue. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,272 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Breeze Airways
8.0
Very good
156 reviews
Southwest
8.0
Very good
4,272 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,924 reviews
Southwest
8.0
Very good
4,272 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,273 reviews
Southwest
8.0
Very good
4,272 reviews

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 ($220), and Southwest ($256) offers the cheapest pricing from Raleigh to Islip, New York. Breeze Airways is currently priced 36% 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 $51. However, be on the lookout for offers from Frontier and Southwest, 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 $99, our data indicates the cheapest price to be $49. 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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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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$203FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$98Average$168FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$248Average$356FlexibilityNo cancel feeOn-time63%
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