$89 Cheap Flights from West Palm Beach (PBI) to Islip (ISP)

View $89 flight on Thu, Sep 11, 2025Opens in a new window

Popular airlines from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)

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Cheap Flights from West Palm Beach to Islip (PBI-ISP)

Prices were available within the past 7 days and start at $89 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Sep 11 - Tue, Sep 16
PBI
West Palm Beach
ISP
Islip
$177 Roundtrip, just found
$177
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Sep 11 from West Palm Beach to Islip, returning Tue, Sep 16, priced at $177 just found
JetBlue Airways
Tue, Sep 16 - Tue, Sep 23
PBI
West Palm Beach
ISP
Islip
$177 Roundtrip, just found
$177
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Sep 16 from West Palm Beach to Islip, returning Tue, Sep 23, priced at $177 just found
Southwest Airlines
Wed, Aug 27 - Wed, Sep 3
PBI
West Palm Beach
ISP
Islip
$182 Roundtrip, found 1 day ago
$182
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Aug 27 from West Palm Beach to Islip, returning Wed, Sep 3, priced at $182 found 1 day ago
Southwest Airlines
Thu, Sep 11 - Tue, Sep 16
PBI
West Palm Beach
ISP
Islip
$187 Roundtrip, just found
$187
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Sep 11 from West Palm Beach to Islip, returning Tue, Sep 16, priced at $187 just found
JetBlue Airways
Wed, Aug 6 - Tue, Aug 12
PBI
West Palm Beach
ISP
Islip
$188 Roundtrip, found 5 days ago
$188
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Wed, Aug 6 from West Palm Beach to Islip, returning Tue, Aug 12, priced at $188 found 5 days ago
Breeze Airways
Thu, Aug 28 - Thu, Sep 11
PBI
West Palm Beach
ISP
Islip
$190 Roundtrip, found 2 days ago
$190
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Thu, Aug 28 from West Palm Beach to Islip, returning Thu, Sep 11, priced at $190 found 2 days ago
Breeze Airways
Thu, Aug 21 - Sat, Aug 23
PBI
West Palm Beach
ISP
Islip
$192 Roundtrip, found 9 hours ago
$192
Roundtrip
found 9 hours ago
Select Breeze Airways flight, departing Thu, Aug 21 from West Palm Beach to Islip, returning Sat, Aug 23, priced at $192 found 9 hours ago
Southwest Airlines
Wed, Aug 27 - Wed, Sep 3
PBI
West Palm Beach
ISP
Islip
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Aug 27 from West Palm Beach to Islip, returning Wed, Sep 3, priced at $192 found 1 day ago
JetBlue Airways
Tue, Aug 12 - Fri, Aug 15
PBI
West Palm Beach
ISP
Islip
$193 Roundtrip, found 4 days ago
$193
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Tue, Aug 12 from West Palm Beach to Islip, returning Fri, Aug 15, priced at $193 found 4 days ago
Frontier Airlines
Tue, Jul 1 - Thu, Jul 3
PBI
West Palm Beach
ISP
Islip
$203 Roundtrip, found 3 days ago
$203
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Jul 1 from West Palm Beach to Islip, returning Thu, Jul 3, priced at $203 found 3 days ago

Find the cheapest month to fly from West Palm Beach (PBI) to Islip (ISP)

March is typically the cheapest month to fly

From $48 - $207 per traveler.

Graph displaying average flight prices per month

Alternative airports near Islip

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to MacArthur ISP. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $268
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $268
Flights from West Palm Beach (PBI) to Islip (ISP)
Origin airport
Palm Beach Intl.
Destination airport
MacArthur
Airlines serving
Breeze Airways, Frontier Airlines, JetBlue Airways, Southwest Airlines
Roundtrip price
$177
Distance
1052 mi
Average flight time
2 hours 42 mins

West Palm Beach to Islip Flights

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

 

The best time to book a flight from West Palm Beach to Islip

Sunday is one of the best days to book for cheap flights from West Palm Beach 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 West Palm Beach 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 West Palm Beach to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 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 West Palm Beach 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 West Palm Beach 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.

 

Frequently asked questions

How much does a flight from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP) cost?
Cheap round-trip fares from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP) start from $149. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines and Southwest Airlines flight leaving PBI on July 1 2025 and touching down at ISP. The price was last updated on June 21 2025 and has not changed since.
What is the cheapest month to fly from PBI to ISP?
The cheapest flights from PBI to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
Take the express route to MacArthur Airport (ISP). 3 carriers operate direct flights from Palm Beach Intl. Airport (PBI), including:
  • Southwest Airlines
  • Frontier Airlines
  • JetBlue Airways

What is the cheapest airline that flies from PBI to ISP?
Fly from PBI to ISP with Frontier Airlines. This airline currently has the cheapest one-way ticket for this route, starting from $54. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PBI on July 1 2025. Prices were last updated on June 21 2025 and have not changed since.
How many flights per day from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
When flying out of Palm Beach Intl. Airport (PBI), you'll have a choice from an average of 3 daily direct flights to MacArthur Airport (ISP).
What are the most popular departure times for flights from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
More people fly between PBI and ISP at 10 AM than at any other time of day. Looking to skip the crowds? Travel outside of rush hours and you're likely to save on your fare as well.
What day of the week has the most flights from PBI to ISP?
Fly on a Friday if you're after the best choice of flights from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP).
What is the earliest flight from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
The first flight of the day jetting off from Palm Beach Intl. Airport (PBI) is at around 7:10AM UTC-5. Board this flight and you'll land at MacArthur Airport (ISP) at approximately 9:50AM UTC-5. The entire trip takes 2h 40m.
How long does it take to fly from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
The average flight time from PBI to ISP is 2 hours and 43 minutes, covering a total distance of 1,050 mi.
What is the best time to fly from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
Choose a flight from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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.
What airports do you fly into for Islip from Palm Beach Intl. Airport (PBI)?
Touch down at any of these Islip airports following your direct flight from Palm Beach Intl. Airport (PBI):
  • LaGuardia Airport (LGA)
  • John F. Kennedy Intl. Airport (JFK)
  • Westchester County Airport (HPN)
  • MacArthur Airport (ISP)
  • Tweed - New Haven Regional Airport (HVN)

Is it cheaper to buy a plane ticket from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP) last-minute?
Booking your plane ticket from PBI to ISP right before your trip is typically more expensive. However, if you're flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a PBI to ISP flight and hotel package?
Securing a PBI to ISP flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Palm Beach Intl. Airport (PBI) to MacArthur Airport (ISP)?
Typically, you can cancel or reschedule your PBI to ISP flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, head to our Customer Service portal.

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*Available to One Key members.