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$51+ Cheap flights from Islip to Raleigh (ISP - RDU)

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.
ISP — RDU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Islip Long Island to Raleigh-Durham are usually found in January or February, booked 43 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Islip to Raleigh

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Raleigh (RDU). 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 September 11, 2025.

Round-trip from

$112
(CheapOair)

One-way from

$51
(CheapOair)

Popular in

September

Cheapest in

January

Average price

$288

Good round-trip deal

$198 or less

Good one-way deal

$87 or less
From Islip Long Island to Raleigh-Durham
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One-way flight from Islip Long Island to Raleigh-Durham
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Highest demand for flights based on searches. 18% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Islip Long Island to Raleigh-Durham.
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Price to beat on a one-way flight from Islip Long Island to Raleigh-Durham.
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Find flight deals from Islip to Raleigh

Cheapest flights from Islip to Raleigh
Explore the most affordable flight options available from Islip to Raleigh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Priceline deal was found by Cheapflights users on 9/10. 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.
Thu 10/239:49 amISP - RDU
1 stop6h 05mMultiple Airlines
Fri 10/3112:13 pmRDU - ISP
Nonstop1h 32mMultiple Airlines
Deal found 9/10$143
This CheapOair deal was found by Cheapflights users on 9/10. 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 9/269:49 amISP - RDU
1 stop7h 22mFrontier
Fri 9/268:08 pmRDU - ISP
1 stop14h 47mFrontier
Deal found 9/10$144
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/65:05 pmISP - RDU
1 stop18h 25mFrontier
Mon 10/131:05 pmRDU - ISP
1 stop20h 39mFrontier
Deal found 9/8$154
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 10/149:37 pmISP - RDU
1 stop13h 53mFrontier
Tue 10/216:30 amRDU - ISP
1 stop14h 12mFrontier
Deal found 9/9$163
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/239:49 amISP - RDU
1 stop6h 05mFrontier
Tue 10/285:34 pmRDU - ISP
1 stop17h 03mFrontier
Deal found 9/9$167
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/239:49 amISP - RDU
1 stop6h 05mFrontier
Sun 10/269:36 pmRDU - ISP
1 stop13h 01mFrontier
Deal found 9/9$171
This CheapOair deal was found by Cheapflights users on 9/11. 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.
Thu 10/211:40 amISP - RDU
1 stop22h 13mFrontier
Mon 10/68:23 pmRDU - ISP
1 stop24h 19mFrontier
Deal found 9/11$172
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Sun 10/199:44 amISP - RDU
1 stop5h 54mFrontier
Fri 10/241:51 pmRDU - ISP
1 stop20h 46mFrontier
Deal found 9/8$179
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Sun 10/269:52 amISP - RDU
1 stop5h 49mFrontier
Thu 10/309:35 pmRDU - ISP
1 stop13h 02mFrontier
Deal found 9/10$182
This CheapOair deal was found by Cheapflights users on 9/10. 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 9/1711:35 amISP - RDU
1 stop6h 28mFrontier
Wed 9/247:00 pmRDU - ISP
1 stop15h 55mFrontier
Deal found 9/10$184
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Wed 10/224:58 pmISP - RDU
1 stop16h 42mFrontier
Tue 10/285:34 pmRDU - ISP
1 stop17h 03mFrontier
Deal found 9/9$185
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/169:49 amISP - RDU
1 stop6h 05mFrontier
Sat 10/186:05 pmRDU - ISP
1 stop14h 54mFrontier
Deal found 9/9$191

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Raleigh 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 11, 2025.
Use the filters below to find and compare flights from Islip to Raleigh that are best for you.

Fly from

Islip

Fly to

Raleigh

Route

Depart

Return

Price

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Fri 2/6

2:21 pm-4:04 pm

Nonstop1h 43m

Raleigh-Durham

Mon 2/9

11:59 am-1:31 pm

Nonstop1h 32m

$122

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Fri 3/6

2:21 pm-4:04 pm

Nonstop1h 43m

Raleigh-Durham

Mon 3/9

11:59 am-1:31 pm

Nonstop1h 32m

$133

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Thu 10/23

9:37 pm-9:28 am

1 stop11h 51m

Raleigh-Durham

Sat 10/25

6:05 pm-9:07 am

1 stop15h 02m

$144

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Fri 9/26

5:12 pm-5:11 pm

1 stop23h 59m

Raleigh-Durham

Mon 9/29

8:23 pm-10:40 am

1 stop14h 17m

$144

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Fri 11/14

2:25 pm-4:04 pm

Nonstop1h 39m

Raleigh-Durham

Mon 11/17

12:13 pm-1:45 pm

Nonstop1h 32m

$154

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Thu 10/23

9:49 am-3:54 pm

1 stop6h 05m

Raleigh-Durham

Tue 10/28

5:34 pm-10:37 am

1 stop17h 03m

$167

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Wed 10/22

4:58 pm-6:08 pm

1 stop25h 10m

Raleigh-Durham

Sat 10/25

6:05 pm-9:07 am

1 stop15h 02m

$172

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Wed 10/22

4:58 pm-9:40 am

1 stop16h 42m

Raleigh-Durham

Wed 10/29

5:34 pm-5:42 pm

1 stop24h 08m

$185

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Fri 10/31

4:58 pm-6:17 pm

1 stop25h 19m

Raleigh-Durham

Sun 11/2

9:35 pm-10:37 am

1 stop13h 02m

$196

IslipRaleigh

ISP - RDU

ISPRDU

Islip Long Island

Thu 11/6

9:54 am-5:42 pm

1 stop7h 48m

Raleigh-Durham

Sun 11/9

3:07 pm-9:09 am

1 stop18h 02m

$196

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 23 results
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2
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Best time to book a flight from Islip to Raleigh

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

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

Use this chart to determine the optimal time to book a round-trip flight from Islip to Raleigh. Price data was last updated on August 29, 2025.

The best time to book flights from Islip to Raleigh is 43 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Islip to Raleigh (average of $206). Flying from Islip to Raleigh in March is currently the most expensive (average of $293). 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 ISP to RDU?

Find hourly flight availability from Islip to Raleigh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip to Raleigh in the morning. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Raleigh

Get insights into the airlines that provide service to Raleigh. 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 Raleigh. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Southwest, Breeze Airways, and Frontier from Islip to Raleigh by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Breeze Airways
8.0
Very good
205 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Islip to Raleigh. 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 Islip to Raleigh flight route?

    The Islip Long Island to Raleigh-Durham flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Islip to Raleigh?

    A quick flight from Islip to Raleigh can take about 1h 43m. Breeze Airways provides one of the quickest options available for as low as $122. 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 Islip to Raleigh round-trip?

    Currently priced at $73, Frontier will fly you from Islip to Raleigh and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Breeze Airways and Southwest - these airlines can fly you to your destination from $101 and $267, respectively. Frontier is 63% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Islip to Raleigh?

    Looking at all options, your cheapest flight can be booked for $54. While the most popular route (Islip Long Island - Raleigh-Durham) can be booked for $112 on average, our data indicates $226 when flying from Islip to Raleigh.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Islip to Raleigh (average of $206). Flying from Islip to Raleigh in March is currently the most expensive (average of $293). 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
Dunn
Cary
Smithfield
Rocky Mount
Garner
Chapel Hill
Goldsboro
Morrisville
Apex
Henderson
Wilson
Danville
Wake Forest
Pinehurst
South Hill
Holly Springs

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Alternative routes for Islip to Raleigh

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

Discover the top 3 airlines that operate flights from Islip to Raleigh. 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$152FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$101Average$175FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$267Average$326FlexibilityNo cancel feeOn-time63%

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