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Islip

$88+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Frontier deal was found by Cheapflights users on 7/30. 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 8/2910:08 am
DFW
-
ISP
1 stop7h 53m
Frontier
Wed 9/210:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/30$176
This Orbitz deal was found by Cheapflights users on 7/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Sun 8/307:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/30$204
This CheapOair deal was found by Cheapflights users on 7/30. 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 9/173:20 pm
DFW
-
ISP
1 stop25h 43m
Frontier
Sun 9/205:43 pm
ISP
-
DFW
1 stop15h 29m
Frontier
Deal found 7/30$214
This Frontier deal was found by Cheapflights users on 7/31. 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 9/18:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Sat 9/510:57 am
ISP
-
DFW
1 stop8h 06m
Frontier
Deal found 7/31$239
This Frontier deal was found by Cheapflights users on 7/27. 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 8/2710:08 am
DFW
-
ISP
1 stop7h 53m
Frontier
Thu 9/37:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/27$246
This Frontier deal was found by Cheapflights users on 7/27. 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
Fri 9/47:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/27$247
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:17 am
DFW
-
ISP
1 stop27h 16m
Frontier
Sun 11/17:46 pm
ISP
-
DFW
1 stop26h 38m
Frontier
Deal found 7/29$248
This Frontier deal was found by Cheapflights users on 7/27. 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 8/208:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Sun 8/2310:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/27$253
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:28 am
DFW
-
ISP
1 stop8h 46m
Frontier
Sun 11/17:46 pm
ISP
-
DFW
1 stop26h 38m
Frontier
Deal found 7/29$254
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:05 pm
DFW
-
ISP
1 stop12h 48m
Frontier
Sun 8/237:09 pm
ISP
-
DFW
1 stop16h 21m
Frontier
Deal found 7/29$260

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 August 1, 2026.

Round-trip from

$176
(Frontier)

One-way from

$88
(Frontier)

Popular in

November

Cheapest in

February

Average price

$347
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 August 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 August 1, 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
Quickest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 8/29

10:08 am-7:01 pm

1 stop7h 53m

Islip Long Island

Wed 9/2

10:57 am-7:00 pm

1 stop9h 03m

$176

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/17

3:20 pm-6:03 pm

1 stop25h 43m

Islip Long Island

Sun 9/20

5:43 pm-8:12 am

1 stop15h 29m

$224

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 8/20

8:05 pm-9:53 am

1 stop12h 48m

Islip Long Island

Thu 8/27

10:57 am-7:00 pm

1 stop9h 03m

$261

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/3

10:08 am-7:01 pm

1 stop7h 53m

Islip Long Island

Sun 9/6

10:57 am-7:00 pm

1 stop9h 03m

$271

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 9/12

1:23 pm-4:58 pm

2 stops26h 35m

Islip Long Island

Tue 9/15

5:43 pm-8:07 am

1 stop15h 24m

$284

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 9/5

8:28 am-6:14 pm

1 stop8h 46m

Islip Long Island

Wed 9/9

12:00 pm-12:12 pm

2 stops25h 12m

$323

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 9/17

8:25 pm-6:03 pm

1 stop20h 38m

Islip Long Island

Sun 9/20

4:26 pm-10:20 pm

2 stops30h 54m

$381

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Wed 8/12

5:30 am-7:01 pm

1 stop12h 31m

Islip Long Island

Sat 8/15

10:43 am-5:52 pm

1 stop8h 09m

$388

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/11

8:11 pm-9:53 am

1 stop12h 42m

Islip Long Island

Sat 8/15

10:43 am-5:52 pm

1 stop8h 09m

$399

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/25

11:44 am-9:49 pm

1 stop9h 05m

Islip Long Island

Wed 8/26

6:00 am-3:15 pm

1 stop10h 15m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

No data available for this route at this time. Please check back soon.

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 August 1, 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
4,229 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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 $224, Frontier can have you in Islip, New York from Dallas in 25h 43m. 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 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

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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 August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$218Average$412FlexibilityNo cancel feeOn-time63%

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