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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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Jun 22 — Jun 291
Mon 6/22
Mon 6/29
1 adult, Economy
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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 May 23, 2026.

This CheapOair deal was found by Cheapflights users on 5/18. 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.
Tue 6/95:53 pm
DFW
-
ISP
1 stop26h 04m
Frontier
Tue 6/164:41 pm
ISP
-
DFW
1 stop15h 58m
Frontier
Deal found 5/18$230
This CheapOair deal was found by Cheapflights users on 5/18. 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.
Tue 6/210:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Tue 6/94:41 pm
ISP
-
DFW
1 stop15h 58m
Frontier
Deal found 5/18$250
This Frontier deal was found by Cheapflights users on 5/18. 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 6/210:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Mon 6/86:43 pm
ISP
-
DFW
1 stop13h 16m
Frontier
Deal found 5/18$264
This CheapOair deal was found by Cheapflights users on 5/18. 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 6/258:21 pm
DFW
-
ISP
1 stop21h 44m
Frontier
Sun 6/289:52 pm
ISP
-
DFW
1 stop10h 47m
Frontier
Deal found 5/18$269
This Frontier deal was found by Cheapflights users on 5/18. 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 6/410:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Wed 6/107:50 pm
ISP
-
DFW
1 stop12h 16m
Frontier
Deal found 5/18$270
This Frontier deal was found by Cheapflights users on 5/18. 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 6/55:30 am
DFW
-
ISP
1 stop11h 28m
Frontier
Mon 6/86:43 pm
ISP
-
DFW
1 stop13h 16m
Frontier
Deal found 5/18$284
This Frontier deal was found by Cheapflights users on 5/22. 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.
Sat 6/209:10 am
DFW
-
ISP
1 stop8h 55m
Frontier
Wed 6/249:52 pm
ISP
-
DFW
1 stop10h 47m
Frontier
Deal found 5/22$289
This Frontier deal was found by Cheapflights users on 5/18. 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 6/210:00 pm
DFW
-
ISP
1 stop11h 05m
Frontier
Fri 6/127:50 pm
ISP
-
DFW
1 stop12h 10m
Frontier
Deal found 5/18$290
This CheapOair deal was found by Cheapflights users on 5/22. 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.
Sat 6/135:08 pm
DFW
-
ISP
1 stop26h 49m
Frontier
Sat 6/277:50 pm
ISP
-
DFW
1 stop12h 10m
Frontier
Deal found 5/22$298
This CheapOair deal was found by Cheapflights users on 5/18. 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.
Wed 9/26:00 am
DFW
-
ISP
1 stop12h 05m
Frontier
Mon 9/710:48 am
ISP
-
DFW
1 stop21h 51m
Frontier
Deal found 5/18$300
This Frontier deal was found by Cheapflights users on 5/23. 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.
Sat 6/139:10 am
DFW
-
ISP
1 stop8h 55m
Frontier
Mon 6/159:52 pm
ISP
-
DFW
1 stop12h 56m
Frontier
Deal found 5/23$303
This Frontier deal was found by Cheapflights users on 5/23. 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.
Sat 6/139:10 am
DFW
-
ISP
1 stop8h 55m
Frontier
Fri 6/197:50 pm
ISP
-
DFW
1 stop12h 10m
Frontier
Deal found 5/23$304

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 May 23, 2026.

Round-trip from

$230
(CheapOair)

One-way from

$121
(Frontier)

Popular in

November

Cheapest in

February

Average price

$556
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. 22% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 23, 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

Sat 6/13

5:08 pm-8:57 pm

1 stop26h 49m

Islip Long Island

Sat 6/27

7:50 pm-7:00 am

1 stop12h 10m

$298

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 6/13

9:10 am-7:05 pm

1 stop8h 55m

Islip Long Island

Wed 6/17

9:52 pm-10:34 am

1 stop13h 42m

$324

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 6/25

7:51 pm-8:57 pm

1 stop24h 06m

Islip Long Island

Sun 6/28

9:52 pm-7:39 am

1 stop10h 47m

$329

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sun 6/14

11:39 am-8:57 pm

1 stop8h 18m

Islip Long Island

Sat 6/20

7:50 pm-7:00 am

1 stop12h 10m

$358

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 7/24

5:30 am-7:03 pm

1 stop12h 33m

Islip Long Island

Mon 7/27

10:48 am-7:03 pm

1 stop9h 15m

$360

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Mon 6/15

7:51 pm-3:56 pm

1 stop19h 05m

Islip Long Island

Fri 6/19

7:50 pm-7:00 am

1 stop12h 10m

$380

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/3

8:11 pm-10:03 am

1 stop12h 52m

Islip Long Island

Mon 9/7

10:48 am-7:06 pm

1 stop9h 18m

$380

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/25

11:45 am-10:56 pm

1 stop10h 11m

Islip Long Island

Wed 8/26

6:00 am-3:15 pm

1 stop10h 15m

$473

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 7/23

11:45 am-10:56 pm

1 stop10h 11m

Islip Long Island

Tue 7/28

6:00 am-3:15 pm

1 stop10h 15m

$483

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 7/9

11:45 am-10:56 pm

1 stop10h 11m

Islip Long Island

Wed 7/15

6:00 am-3:15 pm

1 stop10h 15m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 23 resultsSorted by cheapest first
1
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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?

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 May 23, 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
7.9
Good
4,276 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
7.9
Good
4,276 reviews
Southwest
7.9
Good
4,276 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

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 $298, Frontier can have you in Islip, New York from Dallas in 26h 49m. Airlines will cover a distance of 1425 mi.

  • 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 45% 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?

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Alternative routes for Dallas to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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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 May 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$218Average$420FlexibilityNo cancel feeOn-time63%

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