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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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
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 July 18, 2026.

This Frontier deal was found by Cheapflights users on 7/14. 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
Sun 8/237:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/14$242
This Frontier deal was found by Cheapflights users on 7/17. 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 9/410:08 am
DFW
-
ISP
1 stop7h 53m
Frontier
Sun 9/610:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/17$243
This Expedia deal was found by Cheapflights users on 7/13. 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.
Mon 8/105:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Fri 8/147:46 pm
ISP
-
DFW
1 stop29h 13m
Frontier
Deal found 7/13$246
This CheapOair deal was found by Cheapflights users on 7/16. 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 9/172:29 pm
DFW
-
ISP
1 stop27h 22m
Frontier
Sun 9/207:46 pm
ISP
-
DFW
1 stop26h 35m
Frontier
Deal found 7/16$252
This Frontier deal was found by Cheapflights users on 7/16. 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 8/118:11 pm
DFW
-
ISP
1 stop12h 42m
Frontier
Fri 8/217:09 pm
ISP
-
DFW
1 stop13h 24m
Frontier
Deal found 7/16$266
This Frontier deal was found by Cheapflights users on 7/14. 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
Wed 8/2610:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/14$293
This Frontier deal was found by Cheapflights users on 7/13. 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 8/15:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Mon 8/3110:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/13$294
This Frontier deal was found by Cheapflights users on 7/14. 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.
Wed 8/125:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 8/1910:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/14$297
This Frontier deal was found by Cheapflights users on 7/14. 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.
Sun 8/168:14 pm
DFW
-
ISP
1 stop12h 39m
Frontier
Tue 8/2510:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/14$314
This Frontier deal was found by Cheapflights users on 7/16. 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 8/118:11 pm
DFW
-
ISP
1 stop12h 42m
Frontier
Wed 8/1910:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 7/16$317
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sat 9/199:44 pm
DFW
-
ISP
1 stop10h 49m
Multiple Airlines
Sat 9/2612:00 pm
ISP
-
DFW
2 stops20h 34m
Multiple Airlines
Deal found 7/16$318

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 18, 2026.

Round-trip from

$242
(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 18, 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 8/29

10:08 am-7:01 pm

1 stop7h 53m

Islip Long Island

Tue 9/1

10:57 am-7:00 pm

1 stop9h 03m

$242

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 8/22

10:08 am-7:01 pm

1 stop7h 53m

Islip Long Island

Tue 8/25

10:57 am-7:00 pm

1 stop9h 03m

$314

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 8/6

8:14 pm-9:53 am

1 stop12h 39m

Islip Long Island

Mon 8/10

10:57 am-7:15 pm

1 stop9h 18m

$436
Quickest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 10/17

1:25 pm-9:35 pm

1 stop7h 10m

Islip Long Island

Wed 10/21

6:00 am-12:30 pm

1 stop7h 30m

$465

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/18

11:44 am-7:33 pm

1 stop6h 49m

Islip Long Island

Wed 8/19

6:00 am-3:15 pm

1 stop10h 15m

$474

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 10/16

1:25 pm-9:35 pm

1 stop7h 10m

Islip Long Island

Tue 10/20

6:00 am-12:30 pm

1 stop7h 30m

$489

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 9/18

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Sat 9/26

7:00 am-3:29 pm

1 stop9h 29m

$489

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 10/16

1:25 pm-9:35 pm

1 stop7h 10m

Islip Long Island

Mon 10/19

6:00 am-12:30 pm

1 stop7h 30m

$494

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Sat 11/7

1:25 pm-9:37 pm

1 stop7h 12m

Islip Long Island

Mon 11/9

6:00 am-12:30 pm

1 stop7h 30m

$508

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Mon 8/10

11:44 am-9:44 pm

1 stop9h 00m

Islip Long Island

Thu 8/13

6:00 am-3:15 pm

1 stop10h 15m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 23 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?

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 18, 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
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Comfort

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 $465, Frontier can have you in Islip, New York from Dallas in 7h 10m. 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?

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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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$218Average$419FlexibilityNo cancel feeOn-time63%

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