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Islip

$55+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ISP
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
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 21 days in advance, depart on a Wednesday or Thursday and return on a Thursday

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 October 28, 2025.

This CheapOair deal was found by Cheapflights users on 10/27. 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 11/172:57 pmRDU - ISP
1 stop26h 45mFrontier
Thu 11/2010:02 amISP - RDU
1 stop22h 17mFrontier
Deal found 10/27$110
This CheapOair deal was found by Cheapflights users on 10/26. 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.
Tue 11/118:00 amRDU - ISP
1 stop26h 37mFrontier
Wed 11/124:58 pmISP - RDU
1 stop5h 35mFrontier
Deal found 10/26$130
This CheapOair deal was found by Cheapflights users on 10/27. 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 11/89:09 amRDU - ISP
1 stop22h 53mFrontier
Tue 11/116:27 pmISP - RDU
1 stop28h 06mFrontier
Deal found 10/27$143
This CheapOair deal was found by Cheapflights users on 10/26. 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.
Thu 12/118:37 pmRDU - ISP
1 stop27h 22mFrontier
Mon 12/156:00 amISP - RDU
1 stop8h 08mFrontier
Deal found 10/26$150
This CheapOair deal was found by Cheapflights users on 10/27. 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 12/118:37 pmRDU - ISP
1 stop27h 22mFrontier
Sun 12/1411:15 amISP - RDU
1 stop21h 08mFrontier
Deal found 10/27$163
This CheapOair deal was found by Cheapflights users on 10/26. 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.
Thu 11/133:38 pmRDU - ISP
1 stop17h 16mFrontier
Sun 11/169:27 pmISP - RDU
1 stop21h 14mFrontier
Deal found 10/26$169
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Tue 11/48:00 amRDU - ISP
1 stop9h 42mFrontier
Fri 11/72:47 pmISP - RDU
1 stop19h 03mFrontier
Deal found 10/27$176
This CheapOair deal was found by Cheapflights users on 10/26. 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 12/128:14 pmRDU - ISP
1 stop12h 59mFrontier
Mon 12/156:00 amISP - RDU
1 stop8h 08mFrontier
Deal found 10/26$183
This CheapOair deal was found by Cheapflights users on 10/27. 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 11/612:25 pmRDU - ISP
1 stop25h 27mFrontier
Thu 11/2010:02 amISP - RDU
1 stop22h 17mFrontier
Deal found 10/27$189
This Frontier deal was found by Cheapflights users on 10/27. 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.
Tue 11/188:00 amRDU - ISP
1 stop9h 42mFrontier
Sat 11/226:00 amISP - RDU
1 stop7h 29mFrontier
Deal found 10/27$190
This CheapOair deal was found by Cheapflights users on 10/26. 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 11/144:13 pmRDU - ISP
1 stop18h 42mFrontier
Sun 11/169:27 pmISP - RDU
1 stop21h 14mFrontier
Deal found 10/26$196
This CheapOair deal was found by Cheapflights users on 10/27. 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 11/17:12 pmRDU - ISP
1 stop26h 30mFrontier
Mon 11/39:54 amISP - RDU
1 stop7h 48mFrontier
Deal found 10/27$202

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 October 28, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(CheapOair)

One-way from

$55
(CheapOair)

Popular in

July

Cheapest in

February

Average price

$308

Good one-way deal

$119 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. 17% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 28, 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

Tue 12/9

8:14 pm-10:44 pm

1 stop26h 30m

Islip Long Island

Thu 12/11

10:19 am-8:23 am

1 stop22h 04m

$110

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Wed 1/21

9:38 am-11:10 am

Nonstop1h 32m

Islip Long Island

Fri 1/23

2:01 pm-3:44 pm

Nonstop1h 43m

$122

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

$123

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Mon 11/10

6:37 pm-10:45 am

1 stop16h 08m

Islip Long Island

Tue 11/11

6:27 pm-10:33 pm

1 stop28h 06m

$130

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 1/16

11:49 am-1:21 pm

Nonstop1h 32m

Islip Long Island

Sat 1/17

11:50 am-1:33 pm

Nonstop1h 43m

$133

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Sun 11/9

5:41 pm-7:06 pm

1 stop25h 25m

Islip Long Island

Tue 11/11

6:27 pm-10:33 pm

1 stop28h 06m

$143

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 11/7

9:48 pm-10:37 am

1 stop12h 49m

Islip Long Island

Mon 11/10

8:02 pm-10:33 pm

1 stop26h 31m

$143

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 11/7

9:48 pm-10:37 am

1 stop12h 49m

Islip Long Island

Tue 11/11

6:27 pm-10:33 pm

1 stop28h 06m

$143

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 12/12

8:14 pm-9:13 am

1 stop12h 59m

Islip Long Island

Wed 12/17

6:00 am-8:28 am

1 stop26h 28m

$183

RaleighIslip

RDU - ISP

RDUISP

Raleigh-Durham

Fri 12/12

8:14 pm-9:13 am

1 stop12h 59m

Islip Long Island

Sun 12/14

11:15 am-8:23 am

1 stop21h 08m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust 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 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 October 24, 2025.

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, January is the cheapest month in which you can book a flight from Raleigh to Islip, New York (average of $41). Flying from Raleigh to Islip, New York in December is currently the most expensive (average of $79). 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 October 28, 2025.

It’s optimal to fly from Raleigh to Islip, New York in the morning. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight at noon.

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 October 28, 2025.
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
8.1
Very good
220 reviews

Overall

8.1

Comfort

8.1

Entertainment

6.6

Food

6.7

Boarding

8.3

Crew

8.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!
Breeze Airways
8.1
Very good
220 reviews
Breeze Airways
8.1
Very good
220 reviews

Overall

8.1

Comfort

8.1

Entertainment

6.6

Food

6.7

Boarding

8.3

Crew

8.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!
Southwest
8.0
Very good
4,238 reviews
Breeze Airways
8.1
Very good
220 reviews

Overall

8.1

Comfort

8.1

Entertainment

6.6

Food

6.7

Boarding

8.3

Crew

8.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!
Frontier
5.8
Fair
3,124 reviews
Breeze Airways
8.1
Very good
220 reviews

Overall

8.1

Comfort

8.1

Entertainment

6.6

Food

6.7

Boarding

8.3

Crew

8.7

Reviews

1 / 13
8.0
Excellent

Anonymous,Jul 2025

RIC - BDL

All went smoothly but the announcements from the crew were way to fast--approaching inaudible. Pilot announcements were perfect!

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 Frontier and Breeze Airways fly from Raleigh to Islip, New York in about 1h 32m. The time it takes to get you to your destination can typically vary by up to 24h 58m. Airlines will cover a distance of 458 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Frontier ($49), Breeze Airways ($93), and Southwest ($247) offers the cheapest pricing from Raleigh to Islip, New York. Frontier is currently priced 77% 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 $129, our data indicates the cheapest price to be $119. The most popular route (Raleigh-Durham - Islip Long Island), is priced around $110.

  • 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 $41). Flying from Raleigh to Islip, New York in December is currently the most expensive (average of $79). 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 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$208FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$93Average$175FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$247Average$356FlexibilityNo cancel feeOn-time63%

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