$91 Cheap Flights from Dallas (DFW) to Islip (ISP)

View $91 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)

Cheap Flights from Dallas to Islip (DFW-ISP)

Prices were available within the past 7 days and start at $91 for one-way flights and $164 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Oct 26 - Sun, Nov 2
DFW
Dallas
ISP
Islip
$164 Roundtrip, found 5 days ago
$164
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Oct 26 from Dallas to Islip, returning Sun, Nov 2, priced at $164 found 5 days ago
Frontier Airlines
Wed, Nov 5 - Thu, Nov 20
DFW
Dallas
ISP
Islip
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Nov 5 from Dallas to Islip, returning Thu, Nov 20, priced at $180 found 2 days ago
Frontier Airlines
Wed, Nov 5 - Sat, Nov 8
DFW
Dallas
ISP
Islip
$182 Roundtrip, found 18 hours ago
$182
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Wed, Nov 5 from Dallas to Islip, returning Sat, Nov 8, priced at $182 found 18 hours ago
Frontier Airlines
Sun, Oct 26 - Tue, Nov 4
DFW
Dallas
ISP
Islip
$184 Roundtrip, found 5 days ago
$184
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Oct 26 from Dallas to Islip, returning Tue, Nov 4, priced at $184 found 5 days ago
Frontier Airlines
Thu, Oct 30 - Sun, Nov 2
DFW
Dallas
ISP
Islip
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Dallas to Islip, returning Sun, Nov 2, priced at $204 found 1 day ago
Frontier Airlines
Tue, Nov 4 - Sat, Nov 8
DFW
Dallas
ISP
Islip
$206 Roundtrip, found 18 hours ago
$206
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Tue, Nov 4 from Dallas to Islip, returning Sat, Nov 8, priced at $206 found 18 hours ago
Frontier Airlines
Sun, Nov 16 - Sat, Dec 6
DFW
Dallas
ISP
Islip
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Nov 16 from Dallas to Islip, returning Sat, Dec 6, priced at $212 found 2 days ago
Frontier Airlines
Tue, Nov 4 - Mon, Nov 10
DFW
Dallas
ISP
Islip
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Nov 4 from Dallas to Islip, returning Mon, Nov 10, priced at $218 found 1 day ago
Frontier Airlines
Fri, Oct 31 - Sun, Nov 2
DFW
Dallas
ISP
Islip
$224 Roundtrip, found 1 day ago
$224
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Dallas to Islip, returning Sun, Nov 2, priced at $224 found 1 day ago
Frontier Airlines
Tue, Nov 4 - Mon, Nov 10
DFW
Dallas
ISP
Islip
$232 Roundtrip, found 18 hours ago
$232
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Tue, Nov 4 from Dallas to Islip, returning Mon, Nov 10, priced at $232 found 18 hours ago

Find the cheapest month to fly from Dallas (DFW) to Islip (ISP)

January is typically the cheapest month to fly

From $118 - $788 per traveler.

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 $348
ISP
MacArthur
CheapestClosest
Average driving time to city center14 min
Flights from $348

Frequently asked questions

How much does a flight from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP) cost?
Snag a cheap one-way flight from $91 or cheap return flight from $164 from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP) 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 Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)?
October is the most affordable month to fly from DFW to ISP. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DFW to ISP flight.
How many flights per day from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)?
You'll have to take a flight with a layover when traveling from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from DFW to ISP?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)?
To touch down at MacArthur Airport (ISP) on schedule, choose a flight that takes off from Dallas-Fort Worth Intl. Airport (DFW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Dallas-Fort Worth Intl. Airport (DFW)?
If you're traveling on a direct flight from Dallas-Fort Worth Intl. Airport (DFW) to Islip, you can arrive at either LaGuardia Airport (LGA) or John F. Kennedy Intl. Airport (JFK).
Is it cheaper to buy a plane ticket from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP) last-minute?
Booking your plane ticket from DFW to ISP just before your getaway is generally more expensive. But if there's some wiggle room with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a DFW to ISP flight and hotel package?
You'll generally save money by securing a DFW 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 simple to manage it all in one place. Once you've selected your ideal accommodations and flights, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Dallas-Fort Worth Intl. Airport (DFW) to MacArthur Airport (ISP)?
Generally, it's possible to reschedule or cancel your DFW to ISP flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Dallas-Fort Worth Intl.
Destination airport
MacArthur
Airlines serving
Frontier Airlines
Roundtrip price
$164
Distance
1425 mi

Book with confidence

Dallas to Islip Flights

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

 

The best time to book a flight from Dallas to Islip

Sunday is one of the best days to book for cheap flights from Dallas 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 Dallas 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 Dallas to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $91 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 Dallas 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 Dallas 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.

 

Dallas to Islip Flights

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*Available to One Key members.