$51 Cheap Flights from Raleigh (RDU) to Islip (ISP)

View $51 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to MacArthur Airport (ISP)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Raleigh to Islip (RDU-ISP)

Prices were available within the past 7 days and start at $51 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Breeze Airways
Fri, Sep 5 - Mon, Sep 8
RDU
Raleigh
ISP
Islip
$117 Roundtrip, found 3 hours ago
$117
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Fri, Sep 5 from Raleigh to Islip, returning Mon, Sep 8, priced at $117 found 3 hours ago
Breeze Airways
Fri, Sep 5 - Mon, Sep 8
RDU
Raleigh
ISP
Islip
$122 Roundtrip, found 3 hours ago
$122
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Fri, Sep 5 from Raleigh to Islip, returning Mon, Sep 8, priced at $122 found 3 hours ago
Breeze Airways
Fri, Sep 5 - Mon, Sep 8
RDU
Raleigh
ISP
Islip
$127 Roundtrip, found 3 hours ago
$127
Roundtrip
found 3 hours ago
Select Breeze Airways flight, departing Fri, Sep 5 from Raleigh to Islip, returning Mon, Sep 8, priced at $127 found 3 hours ago
Breeze Airways
Fri, Oct 3 - Tue, Oct 7
RDU
Raleigh
ISP
Islip
$129 Roundtrip, found 6 days ago
$129
Roundtrip
found 6 days ago
Select Breeze Airways flight, departing Fri, Oct 3 from Raleigh to Islip, returning Tue, Oct 7, priced at $129 found 6 days ago
Breeze Airways
Wed, Aug 20 - Wed, Aug 27
RDU
Raleigh
ISP
Islip
$132 Roundtrip, found 2 days ago
$132
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Wed, Aug 20 from Raleigh to Islip, returning Wed, Aug 27, priced at $132 found 2 days ago
Breeze Airways
Wed, Aug 27 - Fri, Aug 29
RDU
Raleigh
ISP
Islip
$137 Roundtrip, found 5 days ago
$137
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Wed, Aug 27 from Raleigh to Islip, returning Fri, Aug 29, priced at $137 found 5 days ago
Breeze Airways
Wed, Aug 27 - Fri, Aug 29
RDU
Raleigh
ISP
Islip
$142 Roundtrip, found 5 days ago
$142
Roundtrip
found 5 days ago
Select Breeze Airways flight, departing Wed, Aug 27 from Raleigh to Islip, returning Fri, Aug 29, priced at $142 found 5 days ago
Southwest Airlines
Thu, Oct 30 - Fri, Oct 31
RDU
Raleigh
ISP
Islip
$144 Roundtrip, found 3 hours ago
$144
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Thu, Oct 30 from Raleigh to Islip, returning Fri, Oct 31, priced at $144 found 3 hours ago
Frontier Airlines
Thu, Sep 4 - Mon, Sep 8
RDU
Raleigh
ISP
Islip
$175 Roundtrip, found 2 days ago
$175
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Sep 4 from Raleigh to Islip, returning Mon, Sep 8, priced at $175 found 2 days ago
JetBlue Airways
Tue, Oct 28 - Mon, Nov 3
RDU
Raleigh
ISP
Islip
$241 Roundtrip, found 3 hours ago
$241
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Tue, Oct 28 from Raleigh to Islip, returning Mon, Nov 3, priced at $241 found 3 hours ago

Find the cheapest month to fly from Raleigh (RDU) to Islip (ISP)

May is typically the cheapest month to fly

From $100 - $407 per traveler.

Graph displaying average flight prices per month

Alternative airports near Islip

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to MacArthur ISP. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $170
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $170
Flights from Raleigh (RDU) to Islip (ISP)
Origin airport
Raleigh - Durham Intl.
Destination airport
MacArthur
Airlines serving
Breeze Airways, Frontier Airlines, JetBlue Airways, Southwest Airlines
Roundtrip price
$116
Distance
458 mi
Average flight time
1 hour 33 mins

Raleigh to Islip Flights

The cheapest times to fly from Raleigh to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Raleigh to Islip are during the month of September. You can find some of the cheapest flights from Raleigh to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to Islip

Sunday is one of the best days to book for cheap flights from Raleigh to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Raleigh to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Raleigh to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $51 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Raleigh to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Raleigh to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP) cost?
You can pick up cheap return fares starting at $127 from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Breeze flight leaving RDU on July 4 2025 and touching down at ISP. The price was last updated on June 30 2025 and has not changed since.
What is the cheapest month to fly from RDU to ISP?
To land a cheap fare, search for nonstop flights from RDU to ISP that depart in August. You can find a one-way Breeze flight for $61 leaving on August 27 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 30 2025 and remains unchanged.
Which airlines fly direct from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
When heading out of Raleigh - Durham Intl. Airport (RDU), you can board a direct flight to MacArthur Airport (ISP) with Breeze Airways.
What is the cheapest airline that flies from RDU to ISP?
Travel from RDU to ISP with Breeze. This airline currently has the cheapest one-way fare on this route, starting at $61. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from RDU on August 27 2025. Prices were last updated on June 30 2025 and have not changed since.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
On average, there are 3 direct flights departing from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP) each week. If you can't find one that fits your schedule, think about booking a flight that includes a layover. Filter your search results on Expedia to include one or more stops and select the next best alternative.
What are the most popular departure times for flights from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
Flights between RDU and ISP are their busiest at 10 AM. For a quieter experience and possibly cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from RDU to ISP?
Monday offers the most flights from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP). Consider traveling on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
The first flight of the day leaving Raleigh - Durham Intl. Airport (RDU) is at around 10:45AM UTC-5. Hop on this flight and you'll land at MacArthur Airport (ISP) at approximately 12:16PM UTC-5. The total travel time is 1h 31m.
How long does it take to fly from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
It takes approximately 1 hour and 31 minutes to cover the 460 mi from RDU to ISP.
What airline has the least delays from RDU to ISP?
Consider booking with Breeze Airways if you'd like to go straight from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP) without any interruptions. This airline has the best track record for punctuality, with an on-time score of 82%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
Book a flight from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Islip from Raleigh - Durham Intl. Airport (RDU)?
If you're catching a direct flight from Raleigh - Durham Intl. Airport (RDU) to Islip, you can touch down at any one of these airports:

  • LaGuardia Airport (LGA)
  • John F. Kennedy Intl. Airport (JFK)
  • Westchester County Airport (HPN)
  • Tweed - New Haven Regional Airport (HVN)
  • MacArthur Airport (ISP)

Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP) last-minute?
Booking your flight from RDU to ISP right before your journey is generally more expensive. But if there's some wiggle room with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a RDU to ISP flight and hotel package?
Booking a RDU to ISP flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to MacArthur Airport (ISP)?
Typically, it's possible to cancel or reschedule your RDU to ISP flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.