Cheap Flights from Islip (ISP) to Londonderry (LDY)

Popular airlines from MacArthur Airport (ISP) to Londonderry (LDY-City of Derry)

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Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to City of Derry Airport (LDY) cost?
Lock in a cheap one-way flight or cheap return flight from MacArthur Airport (ISP) to City of Derry Airport (LDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to City of Derry Airport (LDY)?
Planning your trip for may help you find better deals, as it's the cheapest month for flights between ISP and LDY. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from MacArthur Airport (ISP) to City of Derry Airport (LDY)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from ISP to LDY. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from MacArthur Airport (ISP) to City of Derry Airport (LDY)?
You'll have to catch a flight with a layover when traveling from MacArthur Airport (ISP) to City of Derry Airport (LDY). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ISP to LDY?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MacArthur Airport (ISP) to City of Derry Airport (LDY)?
To avoid possible delays on the MacArthur Airport (ISP) to City of Derry Airport (LDY) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to City of Derry Airport (LDY) last-minute?
Waiting until just before your trip to book a ticket from ISP to LDY generally means paying more. While you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book an ISP to LDY flight and hotel package?
Booking an ISP to LDY flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to City of Derry Airport (LDY)?
In most instances, you can cancel or reschedule your ISP to LDY flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want more details, visit our Customer Service portal.

Travel information

Origin airport
MacArthur
Destination airport
City of Derry
Distance
3079 mi

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Islip to Londonderry Flights

The cheapest times to fly from Islip to Londonderry

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 Islip to Londonderry are during the month of . You can find some of the cheapest flights from Islip to Londonderry with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Londonderry

Sunday is one of the best days to book for cheap flights from Islip to Londonderry: 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 Islip to Londonderry

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 Islip to Londonderry in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Islip to Londonderry 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 Islip to Londonderry 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.

 

Islip to Londonderry Flights

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*Available to One Key members.