Cheap Flights from St. Augustine (UST) to Islip (ISP)

Popular airlines from St. Augustine, FL (UST-Northeast Florida Regional) to MacArthur Airport (ISP)

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Frequently asked questions

How much does a flight from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP) cost?
Lock in a cheap one-way flight or cheap return flight from Northeast Florida Regional Airport (UST) 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 Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP)?
The cheapest month to fly from UST to ISP is , when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from UST to ISP. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP)?
Nonstop flights from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from UST to ISP?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP)?
To avoid potential delays on the Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP) route, travel before 3 PM. Flights after this time have a 22% higher chance of being 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 Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP) last-minute?
Last-minute fares from UST to ISP are usually more expensive. To lock in the best rates, start searching for flights as soon as possible. That being said, if your travel plans are flexible, you may land a cheap ticket right before you leave.
Is it cheaper to book an UST to ISP flight and hotel package?
Compared with arranging flights and hotels separately, booking an UST to ISP flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place takes the hassle out of travel planning. Just secure your flights and choose from our wide range of stays, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Northeast Florida Regional Airport (UST) to MacArthur Airport (ISP)?
Typically, you can cancel or reschedule your UST to ISP flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more details, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Northeast Florida Regional
Destination airport
MacArthur
Distance
879 mi

Book with confidence

Book with confidence

St. Augustine to Islip Flights

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

 

The best time to book a flight from St. Augustine to Islip

Sunday is one of the best days to book for cheap flights from St. Augustine 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 St. Augustine 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 St. Augustine to Islip in 2025. 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 St. Augustine 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 St. Augustine 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.

 

St. Augustine to Islip Flights

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*Available to One Key members.