$732 Cheap Flights from Glasgow (GLA) to Islip (ISP)

View $732 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Glasgow International Airport (GLA) to MacArthur Airport (ISP)

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Cheap Flights from Glasgow to Islip (GLA-ISP)

Prices were available within the past 7 days and start at $732 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP) cost?
Lock in a cheap one-way flight from $732 or cheap return flight from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP)?
Traveling in can help you save, as it's the cheapest month for flights between GLA and ISP. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest GLA to ISP flight.
How many flights per day from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP)?
There aren't any daily direct flights departing from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from GLA to ISP?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP)?
Select a flight from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP) last-minute?
Booking your plane ticket from GLA to ISP shortly before your trip is usually more expensive. But if there's some wiggle room with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a GLA to ISP flight and hotel package?
You'll generally save money by booking a GLA to ISP flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your ideal accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Glasgow Intl. Airport (GLA) to MacArthur Airport (ISP)?
If you booked your GLA to ISP flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Origin airport
Glasgow Intl.
Destination airport
MacArthur
Distance
3174 mi

Book with confidence

Glasgow to Islip Flights

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

 

The best time to book a flight from Glasgow to Islip

Sunday is one of the best days to book for cheap flights from Glasgow 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 Glasgow 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 Glasgow to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $732 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 Glasgow 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 Glasgow 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.

 

Glasgow to Islip Flights

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*Available to One Key members.