Cheap flight tickets from Raleigh / Durham to Islip

Compare Raleigh / Durham to Islip flight deals

Find the cheapest month or even day of the year to fly to Islip

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Flight deals from Raleigh / Durham to Islip

Looking for a cheap last-minute deal or the best return flight from Raleigh / Durham Airport to Islip Airport? If you want to travel next month, return fares start from RM768. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Raleigh / Durham to Islip

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Islip flights are currently cheapest in September.

Direct flights from Raleigh / Durham to Islip

Durham to Islip: Flight information

The things to know before you go.
Cheapest flight foundRM221
Cheapest month to flySeptember
Average flight time1 hr, 32 mins
Most popular airlineBreeze Airways
Average flights per week6

Finding cheap flights from Raleigh / Durham to Islip: Frequently asked questions

The best price we found for a return flight from Raleigh / Durham to Islip is RM399. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 32 minutes is the average flight time from Raleigh / Durham to Islip.
Breeze Airways flies direct from Raleigh / Durham to Islip.
As of June 2026, there are 6 flights per week flying from Raleigh / Durham to Islip.
The cheapest month to fly from Raleigh / Durham to Islip is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Islip Airport on Tuesday, 1 September 2026.
Yes – the average flight time is 1 hour and 32 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Islip but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Islip is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Breeze Airways offers the cheapest flight tickets to Islip.

Flying from Raleigh / Durham Airport (RDU) to Islip Airport (ISP): what you need to know

  • The average length of a direct flight from Raleigh / Durham Airport to Islip Airport is 1 hour 30 minutes.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to catch your RDU to ISP flight.

  • During popular months like July, it's best to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead for an international flight when you fly during a high season in general.

  • Breeze Airways is your ticket to exploring Islip (and perhaps some other great parts of the United States!). Browse the direct flights from Raleigh / Durham Airport to Islip Airport offered by this airline.

  • Breeze Airways is the airline most travellers choose for this route.

  • Consider adding a stopover when booking your ticket from Raleigh / Durham Airport to Islip Airport. Just deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Here are some options between RDU and ISP:

    • Orlando International Airport

    • Baltimore Washington International Airport

    • Portland Airport

Handy information about Raleigh / Durham Airport (RDU)

Arriving at Islip Airport (ISP)

When to fly to Islip Airport (ISP)

  • The quietest month for a flight from Raleigh / Durham Airport to Islip Airport is December, while July is the most popular. Pick the ideal time to go to Islip based on whether you prefer a more relaxed vibe or a faster pace.

  • When booking your flight from Raleigh / Durham Airport to Islip Airport, think about the kind of weather you like. July is the warmest month in Islip, with temperatures ranging from 19ºC (66ºF) to 29ºC (84ºF).

  • If you like travelling in cooler conditions, look for a cheap ticket from RDU to ISP in January. Average temperatures are between -4ºC (25ºF) and 8ºC (46ºF) then.

Explore more of the United States

  • Islip has loads to offer, but there are so many other corners of the United States waiting to be discovered. Around 64 kilometres west of Islip, a visit to New York will keep you busy. Start with leading attractions like Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • Philadelphia is another favourite destination in the United States and is around 193 kilometres south-west of Islip. No trip is complete without a visit to Independence Hall, Liberty Bell and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.