Cheap Flights from Islip (ISP) to Watertown (ART)

Popular airlines from MacArthur Airport (ISP) to Watertown, NY (ART-Watertown Intl.)

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Cheap Flights from Islip to Watertown (ISP-ART)

Prices were available within the past 7 days and start at for one-way flights and $1,011 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Fri, Oct 24 - Sat, Oct 25
ISP
Islip
ART
Watertown
$1,011 Roundtrip, found 4 days ago
$1,011
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 24 from Islip to Watertown, returning Sat, Oct 25, priced at $1,011 found 4 days ago
Cape Air
Fri, Oct 24 - Sat, Oct 25
ISP
Islip
ART
Watertown
$1,071 Roundtrip, found 4 days ago
$1,071
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 24 from Islip to Watertown, returning Sat, Oct 25, priced at $1,071 found 4 days ago
Cape Air
Fri, Oct 24 - Sat, Oct 25
ISP
Islip
ART
Watertown
$1,131 Roundtrip, found 4 days ago
$1,131
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 24 from Islip to Watertown, returning Sat, Oct 25, priced at $1,131 found 4 days ago
Cape Air
Fri, Oct 24 - Sat, Oct 25
ISP
Islip
ART
Watertown
$1,191 Roundtrip, found 4 days ago
$1,191
Roundtrip
found 4 days ago
Select Cape Air flight, departing Fri, Oct 24 from Islip to Watertown, returning Sat, Oct 25, priced at $1,191 found 4 days ago

Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Watertown Intl. Airport (ART) cost?
Snag a cheap one-way flight or cheap return flight from $1,011 from MacArthur Airport (ISP) to Watertown Intl. Airport (ART) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to Watertown Intl. Airport (ART)?
October is the most affordable month to fly from ISP to ART. Traveling during quieter months is often the key to better flight prices.
What is the cheapest airline that flies from MacArthur Airport (ISP) to Watertown Intl. Airport (ART)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from ISP to ART. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from MacArthur Airport (ISP) to Watertown Intl. Airport (ART)?
You'll need to book a flight with a layover if you're traveling from MacArthur Airport (ISP) to Watertown Intl. Airport (ART). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from ISP to ART?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change based on the season, airline and other factors.*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 Watertown Intl. Airport (ART)?
Book a flight from MacArthur Airport (ISP) to Watertown Intl. Airport (ART) that takes off before 3 PM to reduce the risk of cancellations and delays. 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 MacArthur Airport (ISP) to Watertown Intl. Airport (ART) last-minute?
Last-minute bookings from ISP to ART are generally more expensive. For the cheapest rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, you may score a cheap fare right before you leave.
Is it cheaper to book an ISP to ART flight and hotel package?
You can save money by booking an ISP to ART flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your preferred accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Watertown Intl. Airport (ART)?
Usually, it's possible to cancel or reschedule your ISP to ART flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
MacArthur
Destination airport
Watertown Intl.
Roundtrip price
$1,011
Distance
267 mi

Book with confidence

Book with confidence

Islip to Watertown Flights

The cheapest times to fly from Islip to Watertown

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

 

The best time to book a flight from Islip to Watertown

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

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 Watertown 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 Islip to Watertown 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 Watertown 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 Watertown Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.