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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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ISP
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
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 June 24, 2026.

This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Fri 7/317:46 pm
ISP
-
DFW
1 stop29h 01m
Frontier
Deal found 6/24$242
This Frontier deal was found by Cheapflights users on 6/21. 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 7/295:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 8/510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Deal found 6/21$246
This Expedia deal was found by Cheapflights users on 6/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Sat 8/17:46 pm
ISP
-
DFW
1 stop17h 37m
Frontier
Deal found 6/22$261
This Frontier deal was found by Cheapflights users on 6/23. 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.
Wed 7/85:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 8/510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Deal found 6/23$280
This Travelocity deal was found by Cheapflights users on 6/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:35 pm
DFW
-
ISP
1 stop20h 18m
Frontier
Tue 9/810:57 am
ISP
-
DFW
1 stop26h 33m
Frontier
Deal found 6/21$290
This Frontier deal was found by Cheapflights users on 6/24. 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.
Sat 7/115:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 7/1510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Deal found 6/24$293
This Frontier deal was found by Cheapflights users on 6/20. 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 7/175:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 7/2910:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Deal found 6/20$294
This Expedia deal was found by Cheapflights users on 6/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:45 pm
DFW
-
ISP
1 stop20h 08m
Frontier
Sat 7/117:46 pm
ISP
-
DFW
1 stop17h 37m
Frontier
Deal found 6/22$313
This Frontier deal was found by Cheapflights users on 6/21. 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 8/155:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Mon 8/2410:57 am
ISP
-
DFW
1 stop9h 03m
Frontier
Deal found 6/21$314
This Frontier deal was found by Cheapflights users on 6/21. 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 7/85:30 am
DFW
-
ISP
1 stop12h 31m
Frontier
Wed 7/1510:57 am
ISP
-
DFW
1 stop9h 06m
Frontier
Deal found 6/21$324

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 June 24, 2026.

Round-trip from

$242
(Expedia)

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 June 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 June 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

Wed 7/29

5:30 am-7:01 pm

1 stop12h 31m

Islip Long Island

Wed 8/5

10:57 am-7:03 pm

1 stop9h 06m

$256

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 7/9

8:14 pm-9:53 am

1 stop12h 39m

Islip Long Island

Mon 7/13

10:57 am-7:15 pm

1 stop9h 18m

$327

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 8/21

8:05 pm-9:53 am

1 stop12h 48m

Islip Long Island

Sun 8/23

10:57 am-7:00 pm

1 stop9h 03m

$352

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/18

11:44 am-9:49 pm

1 stop9h 05m

Islip Long Island

Wed 8/19

6:00 am-3:15 pm

1 stop10h 15m

$395
Quickest round-trip

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 8/11

11:45 am-7:24 pm

1 stop6h 39m

Islip Long Island

Sat 8/15

6:00 am-3:15 pm

1 stop10h 15m

$432

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Tue 7/7

11:39 am-10:58 pm

1 stop10h 19m

Islip Long Island

Tue 7/14

6:00 am-3:15 pm

1 stop10h 15m

$443

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Mon 7/13

11:28 am-9:44 pm

1 stop9h 16m

Islip Long Island

Tue 7/14

6:00 am-3:15 pm

1 stop10h 15m

$468

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 10/1

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Sun 10/4

7:00 am-3:29 pm

1 stop9h 29m

$473

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Thu 10/1

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Mon 10/5

7:00 am-3:29 pm

1 stop9h 29m

$473

DallasIslip

DFW - ISP

DFWISP

Dallas/Fort Worth

Fri 10/2

12:25 pm-11:22 pm

1 stop9h 57m

Islip Long Island

Sun 10/4

7:00 am-3:29 pm

1 stop9h 29m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 19 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

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 June 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
7.9
Good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers
Southwest
7.9
Good
4,242 reviews
Southwest
7.9
Good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

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 $242, Frontier can have you in Islip, New York from Dallas in 12h 31m. 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

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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$218Average$419FlexibilityNo cancel feeOn-time63%

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