HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$121+ Cheap flights from Dallas to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dallas to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dallas to Islip

Cheapest flights from Dallas to Islip
Explore the most affordable flight options available from Dallas to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This Frontier deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Tue 8/2510:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/19$239
This Frontier deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:28 am
DFW
-
ISP
1 stop8h 46m
Frontier
Sun 8/237:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/19$242
This Frontier deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:20 pm
DFW
-
ISP
1 stop12h 33m
Frontier
Sat 8/227:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/19$246
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:08 am
DFW
-
ISP
1 stop7h 53m
Frontier
Sun 9/610:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/24$247
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:08 am
DFW
-
ISP
1 stop7h 53m
Frontier
Sun 8/307:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/23$248
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:44 pm
DFW
-
ISP
1 stop10h 49m
Frontier
Sun 9/204:13 pm
ISP
-
DFW
1 stop21h 17m
Frontier
Deal found 7/22$252
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:28 am
DFW
-
ISP
1 stop8h 46m
Frontier
Thu 8/277:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/23$253
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:05 pm
DFW
-
ISP
1 stop12h 48m
Multiple Airlines
Wed 8/262:33 pm
ISP
-
DFW
2 stops30h 01m
Multiple Airlines
Deal found 7/19$264
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:20 pm
DFW
-
ISP
1 stop12h 33m
Multiple Airlines
Wed 8/262:33 pm
ISP
-
DFW
2 stops30h 01m
Multiple Airlines
Deal found 7/19$265
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Sun 9/610:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/22$266

Find flight deals from Dallas to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2026.

Round-trip from

$239
(Frontier)

One-way from

$121
(Frontier)

Popular in

November

Cheapest in

February

Average price

$442
From Dallas to Islip Long Island
Search Deals
One-way flight from Dallas to Islip Long Island
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
Use the filters below to find and compare flights from Dallas to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/25

8:05 pm-9:53 am

1 stop12h 48m

Islip Long Island

Sat 8/29

7:09 pm-7:33 am

1 stop13h 24m

$242

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Mon 8/17

8:20 pm-9:53 am

1 stop12h 33m

Islip Long Island

Fri 8/21

7:09 pm-7:33 am

1 stop13h 24m

$253

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/17

12:15 pm-3:36 pm

2 stops26h 21m

Islip Long Island

Sun 9/20

4:13 pm-9:12 am

1 stop17h 59m

$411

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 8/13

8:28 am-9:53 am

1 stop24h 25m

Islip Long Island

Sun 8/16

6:00 am-10:49 am

1 stop29h 49m

$488

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/10

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Mon 9/14

7:00 am-3:29 pm

1 stop9h 29m

$495
Quickest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 10/8

1:25 pm-9:35 pm

1 stop7h 10m

Islip Long Island

Tue 10/13

6:00 am-12:30 pm

1 stop7h 30m

$495

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 9/18

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Mon 9/21

7:00 am-3:29 pm

1 stop9h 29m

$508

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 10/20

1:25 pm-9:35 pm

1 stop7h 10m

Islip Long Island

Thu 10/22

6:00 am-12:30 pm

1 stop7h 30m

$510

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/10

12:15 pm-11:22 pm

1 stop10h 07m

Islip Long Island

Sun 9/13

7:00 am-3:29 pm

1 stop9h 29m

$519

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/17

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Sun 9/20

7:00 am-3:29 pm

1 stop9h 29m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Dallas to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Dallas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dallas to Islip

How much does it cost to fly round-trip from Dallas to Islip, New York?

Airfare is below average for this route at the moment.
Dallas to Islip, New York flights typically cost between $384 and $568 in August.
The cheapest round-trip price found within the last 5 days was $239 on Frontier (Aug 18-Aug 25).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated July 24, 2026.
Read reviews from past customers who have flown Southwest from Dallas to Islip. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
6.0
Good

Sharilynn,May 2024

HOU - LGA

The free WiFi was so bad, I couldn’t even watch an inflight movie.
Southwest
8.0
Very good
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
6.0
Good

Sharilynn,May 2024

HOU - LGA

The free WiFi was so bad, I couldn’t even watch an inflight movie.

Related info for your journey

Find useful and relevant information for your journey from Dallas to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from Dallas?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Dallas to Islip. 1 airline have flights to Long Island from Dallas on a regular basis. Booking flights from Dallas to Islip Long Island should not be difficult; the airport handles an average of 0 inbound flights from Dallas per day.

  • How long is the flight from Dallas to Islip, New York?

    For as low as $495, Frontier can have you in Islip, New York from Dallas in 9h 57m. Airlines will cover a distance of 1425 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Dallas to Islip, New York round-trip?

    Our cheapest airline available from Dallas to Islip, New York is Southwest. Our recent data shows that you can find tickets from as low as $218 on this airline. You may be able to fly from Dallas to Islip, New York for 48% less than the average price by searching for this airline.

  • Can I find deals for flights from Dallas to Islip that include hotel bookings?

    Yes. In addition to deals on Dallas to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dallas to Islip.

  • Can I find deals for business class flights from Dallas to Islip?

    Yes. Cheapflights offers flight deals from Dallas to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dallas to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
Hobby to LaGuardia flights
Hobby to Newark flights
Austin to John F Kennedy Intl flights
Austin to Newark flights
George Bush Intcntl to Newark flights
Hobby to John F Kennedy Intl flights
George Bush Intcntl to LaGuardia flights
George Bush Intcntl to John F Kennedy Intl flights
Austin to LaGuardia flights
Love Field to LaGuardia flights
San Antonio to Newark flights
Dallas/Fort Worth to Buffalo flights
San Antonio to John F Kennedy Intl flights
Dallas/Fort Worth to Stewart flights
San Antonio to LaGuardia flights
Love Field to Newark flights
Love Field to John F Kennedy Intl flights
Hobby to Buffalo flights
Dallas/Fort Worth to White Plains flights
El Paso to John F Kennedy Intl flights
George Bush Intcntl to Buffalo flights
El Paso to Newark flights
Dallas/Fort Worth to Syracuse flights
Dallas/Fort Worth to Rochester flights
Dallas/Fort Worth to Albany flights
El Paso to LaGuardia flights
Hobby to Syracuse flights
Austin to Buffalo flights
Dallas/Fort Worth to Islip flights
Love Field to Buffalo flights
George Bush Intcntl to Syracuse flights
George Bush Intcntl to Stewart flights
McAllen to John F Kennedy Intl flights
McAllen to LaGuardia flights
Hobby to Rochester flights
McAllen to Newark flights
Austin to Albany flights
Austin to Islip flights
Hobby to Albany flights
George Bush Intcntl to Rochester flights
Austin to Rochester flights
Austin to Syracuse flights
Hobby to Islip flights

Top airline flying from Dallas to Islip

Discover the top airline that operate flights from Dallas to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$218Average$419FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.